Manitou Hydraulic System

HYDRAULICS

-H YDRAULIC CHARACTERISTICS AND SPECIFICATIONS - HYDRAULIC SCHEMATIC DIAGRAMS - HYDRAULIC COMPONENTS LOCATION - HYDRAULIC CONTROL AND ADJUSTMENT

70

- HYDRAULIC SPECIFIC TOOLING

HYDRAULIC CHARACTERISTICS AND SPECIFICATIONS

HYDRAULIC COMPONENT SHEETS –– PRIORITY FLOW DIVIDER –– STEERING PUMP/STEERING UNIT OSPC 200 LS –– COUNTERBALANCE VALVE –– ACCUMULATOR BLOCK –– POWER ASSISTED BRAKE MASTER CYLINDER

70

–– FLOW DISTRIBUTOR –– DISTRIBUTOR SX 14 S (INLET ELEMENT) –– DISTRIBUTOR SX 14 S (TILTING ELEMENT) –– DISTRIBUTOR SX 14 S (TELESCOPE - ATTACHMENT ELEMENTS) –– DISTRIBUTOR SX 14 S (LIFTING ELEMENT) –– DISTRIBUTOR SX 14 S (CLOSING ELEMENT) –– TILTING CUT-OFF VALVE (VCI) –– SDM 140 DISTRIBUTOR –– CASAPPA MVP 60 PUMP

(24/04/2014)

70-01-M171EN


70

2

70-01-M171EN

(24/04/2014)


1

PRIORITY FLOW DIVISOR Values for information purposes only.

Role: - Supply for several receptors from only one pump. - Maintaining priority for steering and brake power supply.

EF CF

70

LS

1

DDP

LS

CF

EF 1 - Calibrated connection. 2 - Strainer. 3 - Spring slide.

2 3

M

Notes: _____________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ (03/09/2008)

F70-3-0001EN

2


Values for information purposes only.

LS

CF

EF

EF

CF LS

M

Once the engine has started, the pump outputs in a line crossing the priority flow divisor. The pressure increases until it compresses the spring, which changes the position of the slide.

70

This slide position change causes direct line connections with the valve.

LS

CF

EF EF

CF LS

M The steering and the master-cylinder are priorities. It is impossible to maneuver the valve. As soon as the steering orbitrol or the master-cylinder are subject to stress, this information is given to the priority flow divisor. This information causes a change in the position of the slide, so as to supply the steering and braking with power in priority. Notes: _____________________________________________________________________________________ ___________________________________________________________________________________________ F70-3-0001EN

(03/09/2008)


1

STEERING PUMP/DIRECTIONAL BLOCK OSPC 200 LS Values for information purposes only. T

P

Role:

L

- Direct and dose the flow in order to supply the steering circuit.

R

- It is a rotating valve.

LS

R

L

1

1 - Secondary relief valve. 2 - Pump valve. 3 - Main pressure relief valve.

70

2

200 cm³/tr

3 -P -T -R -L - LS

LS

T

: Pressure. : Return to tank. : Exit towards the right side. : Exit towards the left side. : Pilot line.

P

Notes: _____________________________________________________________________________________ ___________________________________________________________________________________________ (03/09/2008)

F70-3-0003EN

2


Values for information purposes only. R

L

When the driver turns the steering wheel towards the right, he passes the flowrate from P to R and sends pilot pressure towards the divisor to get priority. LS T

P

R

L

When there is an impact on a wheel, the pressure increases in the line. This pressure opens the valve which enables the resulting pressure to be evacuated and therefore protects the hydraulic and mechanical steering components.

70

LS T

P

R

L

When the wheels are locked to a maximum, the steering circuit increases in pressure, the LS line activates the relief valve and enables flow to the tank. LS T

P

What use do the two valves that are located opposite each other on the top part of the diagram have? What is the maximum pressure permitted in the steering circuit? What is the LS line, without actions, connected to on the steering wheel?

F70-3-0003EN

(03/09/2008)


COUNTER BALANCE VALVE

1

d1 Values for information purposes only.

Role : - Insulates the cylinder in case of hose breakage. V1

- Cylinder movement requires the starting of the I.C. engine. - Limits max. pressure due to impacts.

70

V2

1

C1

C2

3

2 4

V1

1 2 3 4

- Temporization screws. - By-pass valve. - Slide with max. adjustment screw. - Non-return valve.

V2

Notes: _____________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ (03/09/2008)

F70-3-0008EN

2


Values for information purposes only.

C1

C2

V1

V2

C1

C2

V1

V2

70

Return control during cylinder descent.

When a position is secured, no component is able to exert sufficient pressure to open the valve. Only a pressure peak due to an impact can open it.

C1

C2

V1

V2

When the cylinder is pushed, the supply (no-return valve to pass) and return are free. Notes: _____________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ F70-3-0008EN

(03/09/2008)


1

ACCUMULATOR BLOCK Values for information purposes only. 1 - Role: Provides a reserve of pressurized oil fir: - Power assisted braking. - Control valve control (depending on machine).

70

2 - Description:

P1/P2 WV DM T DB RV SBO U

: Pressure port : Circuit selector : Pressure reducer : Tank return : Pressure relief valve (45 bar) : Non-return valve : Membrane accumulator : Service port

Notes : _____________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ (24/04/2014)

F70-3-0023EN

2

HYDRAULIC CHARACTERISTICS AND SPECIFICATIONS Values for information purposes only. 3 - Operation:

P1

U

Unit is supplied via P1.

P2 T

P1

U

Pressure reduced to 35 bar by pressure reducer, then pressure stored in accumulator.

70

P2 T

P1

U

If the pressure reducer jams the pressure relief valve opens (45 bar) to protect all components on exit U.

P2 T

4 - Fill in the table below: P1

P2

10 b

270 b

50 b

0b

10 b

20 b

U

Commentary

Accumulator empty 45 b 35 b

Notes : _____________________________________________________________________________________

___________________________________________________________________________________________ ___________________________________________________________________________________________ F70-3-0023EN

(24/04/2014)


1

MASTER CYLINDER WITH ASSISTANCE Values for information purposes only.

1 - Part : - To send the pressure fluid in order to push the brake pistion that will stop the wheels. - To add the mechanical force (pedal) and the hydraulic force in order to help the driver.

2 - Description : P

N

B

R

70

L

R N

L

B

P - L - N - B - R -

Assistance pressure Pilot pressure (LS line) Return to the tank line Brake pressure LHM tank

P

Notes : _____________________________________________________________________________________

___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ (06/10/2013)

F70-3-0027EN

2

HYDRAULIC CHARACTERISTICS AND SPECIFICATIONS Values for information purposes only. 3 - Working : Phase 1 (no action) R N

L

B

P

The pressure from the accumulator block arrives on P. The ball prevents the oil to pass because it is maintained on its seat. Pilot line (L) is connected to the tank return (N) because it does not use the master cylinder.

Phase 2 (the driver starts the action) R

70

N

L

B

P

When the driver begins to push on the brake pedal, all components are in contact. In this case, the LS line is cut (L). The master cylinder is ready to send the pressure toward the brake with the assistance.

Phase 3 (during the action) R N

L

B

P

When the driver pushes completely the brake pedal, the piston moves and the ball does not stop the oil. In this case, the pressure is sent to help the driver. In the same time, the master cylinder sends a pilot pressure toward the flow divider to have the priority on braking. F70-3-0027EN

(06/10/2013)


1

FLOW REGULATING VALVE Values for information purposes only.

SPi

Role: This valve sends hydraulic flow to reservoir in proportion to the solenoid valve supply value.

70

EPi

C

SPi

B

EPi

A

Maximum pressure (bar) 345 Nominal flow rate (L/min)

345 105 l/mn

Resistance

10 Ω

Maximum current

1,2 A

(27/02/2013)

F70-3-0036EN

2


C B

If «SPi» is supplied at a maximum, the passage from «A» to «C» is open to the maximum. That corresponds to maximum flow.

SPi EPi

A A = Valve bank B = TanK C = Lifting cylinder.

70

C B

=X%

SPi

If «SPi» is supplied at X %, the passage of «A» to «C» is open at X % that corresponds to X % ofthe flow. Pressure is thus greater upstream of «SPi». «EPi» is opened and flow goes from the reservoir in proportion to the solenoid valve supply.

EPi

A

F70-3-0036EN

(27/02/2013)

HYDRAULIC SPECIFICATIONS AND CHARACTERISTICS

1

SX 14 S DISTRIBUTOR (INLET) Values for information purposes only.

Function: - Divide the hydraulic flow, giving priority to steering. - Limit maximum pressure. - Reduce the LS pressure to zero when the control stick is returned to the neutral position. - Cut off hydraulic movements.

MA

1

2

5 LS

M

1

3

4

70

VCI

b B1

D

A1

b B2

A2

A3

B3

B4

A4

b B5

D

A5

DLS b

b

P

2

Tdd

VS

T

T

T

EE

3 1 2 3 4 5

a

LS B

A

B

T

EI a

EA(O) a

a

b

T

ET

T

EA

VRP

B

EF

EL a

Pr

Tpr

4

- Priority Valve. - Movement cut-off valve. - Flow controller and filter. - Pressure limiter. - Non-Return Valve.

Notes: _____________________________________________________________________________________

___________________________________________________________________________________________ ___________________________________________________________________________________________ (08/10/2012)

F70-3-0037EN

2

HYDRAULIC SPECIFICATIONS AND CHARACTERISTICS Values for information purposes only.

LS

M

D

Hydraulic pressure arrives at P.

DLS

- The flow divider valve enables priority to be given to the steering system when there is stand-by pressure equal to the spring. When the orbitrol is not called for the pressure moves the slide and applies the stand-by pressure from the pump to the valveblock modules.

P Tdd

VS

- The LS limiter enables the maximum circuit pressure to be limited by limiting the pump pilot pressure. It pre-empts the action of the pump DR slide and reduces rippling.

LS T

EE

T

M

LS

- The regulator allows the LS pressure to fall to 0 when the control stick returns to neutral. D

70

DLS

- The VS enables all hydraulic movements to be cut off, directing the divider pilot flow to the tank.

P Tdd

VS LS

T

EE

T

What is the function of the non-return valve? How is the main pressure limited? What is the exact calibration of the maximum pressure relief valve?

F70-3-0037EN

(08/10/2012)


1

SX 14 S DISTRIBUTOR (TILT) Values for information purposes only.

Function: - Direct the hydraulic flow to the receiver. - Limit impact pressure. - Enables all movement to be stopped.

MA

1

2

1 LS

M

b B1

D

A1

3

2

4

70

VCI

b B2

A2

A3

B3

B4

A4

b B5

D

A5

DLS b

b

P Tdd

VS a

LS

EE

1 2 3 4

T

T

T

B

A

B

T

EI

3

a

4

EA(O) a

a

b

T

ET

T

EA

VRP

B

EF

EL a

Pr

Tpr

- Valve slide. - Pressure balance. - Pressure spike relief valve. - Pressure spike relief valve.

Notes : _____________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ (08/10/2012)

F70-3-0038EN

2

HYDRAULIC CHARACTERISTICS AND SPECIFICATIONS Values for information purposes only.

b B1

A1 - The hydraulic pressure arrives at the entry module with pump stand-by pressure. - The Pressure balance ensures communication between the main pressure line through the valveblock to the receiver feed. - It takes the receiver pressure and communicates it to the pump. - T here is a priority between the receiver feed and pressure information transmission to avoid any rapid pressure increase as a result of a delay in slide opening relative to pump control.

T

B

A

T

EI a

70

Hydraulic control (At “rest”)

b B1

A1

T

A

B

T

EI a

A1

T

A

B

T

EI a

Hydraulic control (Setting “a”) F70-3-0038EN

b B1

Hydraulic control (Setting “b”) (08/10/2012)


1

SX 14 S DISTRIBUTOR (TELESCOPING - ACCESSORY) Values for information purposes only.

EA ET Function: - Direct the hydraulic flow to the receiver. - Limit impact pressure. - Enables all movement to be stopped.

EA

ET

1

VCI

1 LS

M

b B1

D

A1

b B2

2

1

A2

A3

B3

B4

A4

b B5

3

4

D

A5

DLS b

b

P Tdd

VS a

LS T

T

T

EE

B

A

B

T

EI a

EA(O)

a

b

T

T

EA

ET

a

2

B

EF

EL a

3

VRP

Pr

Tpr

2

1 - Valve slide. 2 - Pressure balance. 3 - Pressure spike relief valve. Notes : _____________________________________________________________________________________

___________________________________________________________________________________________ ___________________________________________________________________________________________ (09/10/2012)

F70-3-0039EN

70

MA

2

HYDRAULIC SPECIFICATIONS AND CHARACTERISTICS Values for information purposes only. Operating principles of the electro-hydraulic controller: Pressure reduced by SPU

Pr

Valve slide

TPr

A3

B3

b

B4

A4

- The hydraulic pressure arrives at the entry module with pump stand-by pressure. - The Pressure balance ensures communication between the main pressure line through the valveblock to the receiver feed.

b

- It takes the receiver pressure and communicates it to the pump.

70

a B

a T

ET

EA

- There is a priority between the receiver feed and pressure information transmission to avoid any rapid pressure increase as a result of a delay in slide opening relative to pump control.

Electro-hydraulic controller (“Rest” state)

A3

B3

b

B4

A4

b

a B

b

a B

T

EA

Electro-hydraulic controller (Setting “a”) F70-3-0039EN

B4

A4

b

a

ET

A3

B3

a T

ET

EA

Electro-hydraulic controller (Setting “b”) (09/10/2012)


1

SX 14 S DISTRIBUTOR (ELEVATION) Values for information purposes only.

Function: –– Direct the hydraulic flow to the receiver. –– Limit impact pressure. –– Enables all movement to be stopped. –– Regulates pilot pressure as per machine overload.

1

VCI

2

1 LS

M

b B1

D

A1

b B2

A2

A3

B3

B4

A4

b B5

3

4

D

A5

DLS b

b

P Tdd

VS a

LS T

T

T

EE

B

A

B

T

EI a

EA(O)

a

b

T

T

ET

EA

VRP

B

EF

EL

a

a

2

Pr

Tpr

3

1. Distribution slide (includes the pilot regulation valve VRP). 2. Pressure spike relief valve. 3. Pressure balance.

Notes : _____________________________________________________________________________________

___________________________________________________________________________________________ ___________________________________________________________________________________________ (09/10/2012)

F70-3-0040EN

70

MA

2

HYDRAULIC SPECIFICATIONS AND CHARACTERISTICS Values for information purposes only. Operating principles of the electro-hydraulic controller and VRP: Jet at control valve inlet for descent control Hydraulic controller

Control Valve

Pr

Valve slide

TPr

Pressure reduced by SPU

The descent control is mixed, i.e. the hydraulic controller directly controls the slide in normal operation. The pressure relief valve, on the other hand, can reduce the slide pilot pressure if the operator wishes to reduce the flow sent to descent and thus the rate of descent.

70

Current/pressure reduction curve, VRP:

F70-3-0040EN

(09/10/2012)


b B5

b T

3

A5

VRP

–– T he hydraulic pressure arrives at the entry module with pump stand-by pressure.

B

EL a Electro-hydraulic controller (“Rest” state)

b B5

–– It takes the receiver pressure and communicates it to the pump. –– T here is a priority between the receiver feed and pressure information transmission to avoid any rapid pressure increase as a result of a delay in slide opening relative to pump control.

70

A5

–– T he Pressure balance ensures communication between the main pressure line through the valveblock to the receiver feed.

b T

VRP

B

EL a Electro-hydraulic controller (Setting “b”)

(09/10/2012)

F70-3-0040EN


70

4

F70-3-0040EN

(09/10/2012)


1

SX 14 S DISTRIBUTOR (CLOSING) Values for information purposes only.

Function: –– It contains a flushing valve whose function is to prevent pressure spikes arising from the premature closing of the main slide of one of the valveblock components before the pump has returned to low.

T3

MA Pr r

1

VCI

LS

M

b B1

D

A1

b B2

A2

A3

B3

B4

A4

b B5

2

3

D

A5

4

1

DLS b

70

Tp

b

P Tdd

VS a

LS T

T

T

EE

B

A

B

T

EI a

EA(O) a

a

b

T

T

ET

EA

VRP

B

EF

EL a

Pr

Tpr

1 - Flushing Valve.

Notes : _____________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ (09/10/2012)

F70-3-0041EN

2


D –– The hydraulic pressure arrives at the entry module with pump stand-by pressure.

EF Tpr

70

Pr

F70-3-0041EN

(09/10/2012)


1

TILT CUT-OFF VALVE (VCI) Values for information purposes only.

Function: –– T o authorize or not crowding, taking into account machine overload and machine software. –– When powered, 35 bar pressure is applied to each side of the slide, giving rise to no crowding movement.

Maximum pressure (bar)

35

Maximum flowrate (L/min)

19

MA

1 1

VCI

LS

M

b B1

D

A1

b B2

A2

A3

B3

B4

A4

b B5

3

2

4

D

A5

DLS b

b

P Tdd

VS a

LS T

T

T

EE

B

A

B

T

EI a

EA(O) a

a

b

T

T

ET

EA

VRP

B

EF

EL a

Pr

Tpr

1 - Crowding Cut-Off Valve (VCI) Notes : _____________________________________________________________________________________

___________________________________________________________________________________________ ___________________________________________________________________________________________ (09/10/2012)

F70-3-0042EN

70

–– When unpowered, pressure can be applied to one side or the other thus enabling movement.


70

2

F70-3-0042EN

(09/10/2012)


1

SDM 140 CONTROL BLOCK Values for information purposes only.

Role: - Limit maximum pressure. -D irect the hydraulic flow to the receivers.

70

- Cut off hydraulic movements (VS). - Limit shock pressure (Valve anti shock). - Set the return flow in the neutral manipulator.

Notes : _____________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ (09/10/2012)

F70-3-0045EN

2


v

V4

T1

V3 V2

V1

PP

1. Tilt cut-off valve (VCI). 2. Boom descent valve (VRD). 3. Movement cut-off valve (VS). 4. Pressure limiter.

6

5

EA

5. Anti-cavitation valve. 6. Anti-cavitation valve. 7. Valve slide PP : Taking Pressure

6

5

1

P

T

2

3

MA

4

PP A1 B1 V1 280 bar

3

V3 A2 B2

V A3 B3

A4 B4

A5 B5 T

200 bar

P

200 bar

70

EL

ET EI

D

280 bar VS

4 260 bar VCI

EE

EL

EI V2

F70-3-0045EN

7

2

T1

7

ET

EA

EA (O) EF

V4

1

7

7

7

(09/10/2012)


3

1. Tilt cut-off valve (VCI) (12 V - 6.8 Ω + freewheel diode on Pin 1)

200 bar

V3 A2 B2

280 bar

ermit or not the tilt function depending on P machine overload and machine software. - When it is powered a 35 bar pressure is applied to both sides of the spool, thereby stopping any tilt movement. - When unpowered, pressure can be applied to one side or the other, thus allowing movement.

VCI

EI V4

2. Boom flow control on descent valve (VRD) (12 V - 4.7 Ω - 1.5 A) - Makes it possible to limit the descent speed of the boom no matter what the load.

70

A1 B1 V1 280 bar

EL V2 T1

3. Safety valve (VS) (12 V - 6.3 Ω + diode de roue libre sur Pin 1 et 2) - T he VS makes it possible to cut off all hydraulic movements by directing the flow divider pilot pressure to the tank.

P

VS

260 bar

EE

Notes : _____________________________________________________________________________________

___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ (09/10/2012)

F70-3-0045EN

4


4. Pressure limiter. - The pressure relief valve makes it possible to limit the internal pressure in the hydraulic circuit, by diverting excess flow to the low return.

P

VS

260 bar

EE

5. Anti-cavitation valve. A2 B2

V A3 B3 200 bar

200 bar

V3

70

280 bar

- The function of the anticavitation valve is to protect the cylinder and hoses from any excessive pressures.

VCI

EI

ET V4

6. Anti-cavitation valve. V3

A2 B2

200 bar

A1 B1 V1 280 bar

280 bar

VCI

EL

EI V2 T1

V4

Notes : _____________________________________________________________________________________

___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ F70-3-0045EN

(09/10/2012)


5

7. Valve slide. V3 A2 B2

V A3 B3

A4 B4

A5 B5

200 bar

200 bar

A1 B1 V1 280 bar

280 bar

VCI

EL

EI V2 T1

A

T

ET

EA

EA (O)

V4

1

B

LC

P P

A

P B

T

0

A

B

P

T

2

T

0

1

B

2

A

B

P

T

70

A

T

LC

P

P

A

T

T

1

B

LC

P P

B

P A

T

2

0 A

B

P

T

T

Notes : _____________________________________________________________________________________

___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ (09/10/2012)

F70-3-0045EN


70

6

F70-3-0045EN

(09/10/2012)


1

CASAPPA MVP 60 PUMP

1 2 3

1

3

7

5

8

70

2 6

4

7 1. PEC (Pressure Electronic Control). 2. Hydraulic flow regulator. 3. Maximum displacement regulator. 4. Minimum displacement regulator. 5. High Pressure (B). 6. Suction pressure (S). 7. LS (X) line coupling. Includes fi lter and flow limiter. 8. Oil tank return.

X

1

60 cm3/tr

2 (09/10/2012)

B

P M

S F70-3-0047EN

2

HYDRAULIC SPECIFICATIONS AND CHARACTERISTICS Values for information purposes only. SECTION VIEW

70

DESCRIPTION

–– LS spring : 17 b

X

–– Pressure limiter : 315 b Key :

B

1

P M

1. PEC (Pressure Electronic Control). 2. Hydraulic fl ow regulator. 315b

17b

2

S

Notes : _____________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ F70-3-0047EN

(09/10/2012)


3

Values for information purposes only. FLOW ADJUSTMENT Keeping stand-by pressure of 17 bar. Delta P = p(B) - p(X) Delta P generated by weak fl ow passing through the control block pressure compensator (Ref 1). If the Delta P increases, the pump’s displacement decreases.

Example: Hydraulic control (Setting “b”)

Delta P X

B 117b

D

100b

A1

DLS

P M

117b

b B1

D

P

1

Tdd

Delta P 17 bar 5l/min

VS LS

17b

S T

EE

T

T

B

A

T

EI a

Notes : _____________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ (09/10/2012)

F70-3-0047EN

70

100b

LS

M


70

4

F70-3-0047EN

(09/10/2012)

HYDRAULIC SCHEMATIC DIAGRAMS

pages MT 732/932 SERIES E-E3 MT-X732 SERIES E-E3 MT 1030 S TURBO SERIES 5-E3 MT-X1030 S TURBO SERIES 5-E3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 MLT 731 TURBO SERIES F-E3 MLT-X 732 95P ST3A S1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 MLT 634 TURBO LSU SERIES F-E3

70

MLT 735/741 TURBO LSU SERIES 6-E3 MLT-X735 TURBO LSU SERIES 6-E3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 MLT 1035 L TURBO LSU SERIES 6-E3 MLT-X1035 100 L TURBO LSU SERIES 6-E3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MLT 634 -120 LSU SERIES F-E3 MLT 634 -120 LSU POWERSHIFT SERIES F-E3 MLT 735/741 -120 LSU SERIES 6-E3 MLT-X735/-X741-120 LSU SERIES 6-E3 MLT 735/741 -120 LSU POWERSHIFT SERIES 6-E3 MLT-X735 -120 LSU POWERSHIFT SERIES 6-E3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 MLT 741 H TURBO LSU SERIES 6-E3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

(24/04/2015)

70-02-M171EN


70

2

70-02-M171EN

(24/04/2015)


MT 732/932 Series E-E3 MT-X732 Series E-E3

3

MT 1030 S TURBO SERIES 5-E3 MT-X1030 S TURBO SERIES 5-E3 HYDRAULIC DIAGRAM KEY

Item

CSP CSPD

Suction strainer Counterbalance valve

Position on diagram S15 I33, G35, G39

Double counterbalance valve

I38

D

Distributor

Q39

EE

Inlet element

S25

EA

Attachment element

S27

ESD

Right stabiliser element

S29

ESG

Left stabiliser element

S31

Lifting element

S33

EI

Tilting element

S35

ET

Telescope element

S37

EL

EF EVTDF(O)

Closing element Telescope head electrovalve (option)

S39 C28, C31

FDAR

Rear disc brake

I23

FDAV

Front brake

I3

FR

Return filter

Q17

M

Engine

I19

Min rpm

930 rpm

Nominal rpm loaded

2200 rpm

Max rpm unladen MC

2400 rpm

Master cylinder

A4

N

Level

S12

P

Hydraulic pump

I17

PAAV(O)

Front attachment connector (option)

C23

PAAV (O) AV1

Front attachment connector (option) Hydraulic locking

C26

PAAV (O) AV2

Front attachment connector (option) Telescope head electrovalve

C28

PAAV (O) AV3

Front attachment connector (option) Telescope head electrovalve and hydraulic locking

C30

PAAV (O) AV4

Front attachment connector (option) Single side-shift carriage (TSDL) and connectors

C33

PAAV (O) AV5

Front attachment connector (option) Telescope head electrovalve and TDSL

C36

PAAV (O) AV6

Front attachment connector (option) TDSL and hydraulic locking

C38

Steering pump

C11

PD PFR(O) PP PRF(O) R RLF SCFR(O) SD

Characteristics (Options)

Trailer brake connector integrated in the VAFR (option)

70

CA

Designation

E4

Pressure test port

O25

Leakage return connector (option)

K13

Hydraulic tank

S13

Brake fluid tank

C3

Trailer brake circuit selector (option)

E7

3 position steering selector

C9

Position 1: short steering Position 2: front wheel steering Position 3: crab steering VAI(O) VAFR(O)

Isolation valve (option) Trailer brake valve (option)

C25, C30, C33, C35 E4

VC

Compensating cylinder

I35

VD

Discharge valve

O22

Rear steering cylinder

I21

VDAR (24/04/2015)

de 110x55 c 310

70-02-M171EN

4

MT 732/932 Series E-E3 MT-X732 Series E-E3 MT 1030 S TURBO SERIES 5-E3 MT-X1030 S TURBO SERIES 5-E3


HYDRAULIC DIAGRAM KEY Item VDAV

Designation Front steering cylinder

Position on diagram


I4

VI

Tilting cylinder

G35

de 120x60 c416

VL

Lifting cylinder

G33

de 140x70 c720

Flow control valve

Q24

Safety valve

Q25

VSD

Right stabiliser cylinder

G27

de 125x60 c200

VSG

Left stabiliser cylinder

G31

de 125x60 c200

VSS

Stabiliser safety valve

VT

Telescope cylinder (MT7)

I35

de 70x50 c2700

VT1

Telescope cylinder 1

I39

de 100x60 c2600 (MT9) de 100x60 c2850 (MT10)

VT2


G39

de 80x50 c2600 (MT9) de 80x50 c2850 (MT10)

VRD VS

VTSDL(O) VVT(O)

Single side-shift carriage cylinder(option)

C33, A36, C38

Carriage locking cylinder (option)

C26, A30, A40

de 60x45 c 183

70

NOTE: 1- The calibration pressures of the main relief valves, on the inlet elements, are given for maximum engine speed. 2- The calibration pressures of the secondary relief valves are at an engine speed of 1000 rpm. 3- The pressure relief valves should be adjusted at an oil temperature of 50°C.

70-02-M171EN

(24/04/2015)

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

A

31

32

33

34

35

OPTION AV-3

C

3

P 200b

OPTION FREINAGE HYDRAULIQUE DE REMORQUE ONLY 1030

P

L 200b

2

1

PD

C2 C4

VAI (O)

200 cm3/tr

T

Y

VAFR LS

N

E

PFR

B

V1

SCFR S

C3

C1

P2

P1

C4

EVTDF (O)

C3

C1

P2

P1

VDL (O)

C4

VAI (O)

C2

EVTDF (O)

41

42

A

VVT (O)

C3

C1

P2

P1

C4

C

C2 C3

C1

P2

P1

LS

VT2

140b

V2

E T

P

CSP

VL

VT C1

G EF

CF

OUT

LS

21.99 cm3/tr

21.99 cm3/tr

IN

VDAV

VDAR

30b V1

FDAR

315b

+15 0

110b V1 V2

C2 335b

C1

V2

CSP

C1

CSD

VC

ES.AR

M

P

ES.AV

C2 335b

C2

G

VT1

CSP C1

C1

C2 300b

V1

FDAV

40

OPTION AV-6

VI

I

39

VDL (O)

VAI (O)

VVT (O)

PAAV (O)

R

AR

OPTION AV-4

C2

PAAV (O)

AV

OPTION AV-2

OPTION AV-1

38

VDL (O)

PAAV (O) PAAV (O)

SD

B1

1

1

VAI (O)

3 2

RLF

2

3

PAAV (O) PAAV (O)

A B T

B

37

OPTION AV-5

VVT (O)

MA

PAAV (O)

MC

36

5

30b V1

CSP

C2

300b

300b

V1

V2

I

V2

V2

Télescopage MT 7

Télescopage MT 9 / 10

ONLY 1030

K

K

PRF(O)

VSD

C1

280b

M

V1

C

C2 100b

CPD

VSG

C1

C2 280b

100b

V2

V1

M

V2

VD

P1

PP

O

O A1

P

FR 6b

Q

A2

B1

A3

B2

B3

A4

B4

VRD

A5

B5

280b

280b

T

P

A6

190b

B6

190b

T

D

A EPI

5b

CVI

VS

B A

B

NO NF

B A

NF NF

B A

NF NF

B A

NF NF

B A

NO NF

B A

NF NF

Q

SPI

15 µm absolu

C

VRP N

CA

125 µm absolu

Niveau moyen: 104L

S

R

(24/04/2015)

250b

EE Capacité 128 litres

EA

ESD

ESG

EL

EI

ET

S

EF

Réserve direction

70-02-M171EN

70

2


PAAV (O) VAI (O)

1

MT 1030 S TURBO SERIES 5-E3 MT-X1030 S TURBO SERIES 5-E3

PAAV (O) PAAV (O)

MT 732/932 Series E-E3 MT-X732 Series E-E3

6


MLT 731 TURBO SERIES F-E3 MLT-X 732 95P ST3A S1 HYDRAULIC DIAGRAM KEY Item

Position on diagram


Item

Designation

Position on diagram

AC

Accumulator

G37

SCFR

Trailer brake circuit selector

E7

CA

Suction strainer

S16

SD


C10

CSP

Counterbalance valve

G26, I30, I39

CR(O)

Trailer hook (option)

C17, C19, C26

CRC (O) D

Telescope suspension (option)

E34

Distributor

Q34

Position 2: front wheel steering Position 3: crab steering VC


I26

de 100x50 c310

Tilting cylinder

G26

de 130x65 c380

Inlet element

S26

VI

S33

VDAV

EL

Lifting element

S28

VDAR

EI

Tilting element

S29

VL

EA

Attachment element

S32

VT

ET

Telescope element

S31

VAFR

EF

Closing element

S34

VVT(O)


C35, A39

FDAV

Front disc brake

I3

VAI (option)

Isolation valve (option)

C34, C38

Pressure control valve

Q28

Telescope suspension valve

I36

Front steering cylinder Rear steering cylinder Lifting cylinder

I4 I21 G35, G40

de 140x70 c720

Telescope cylinder

I30

de 70x50 c2750

Trailer brake valve

E3

FDAR

Rear disc brake

I23

VRP

FEMS

EMS head filter

M39

VASF(O)

FR

Return filter

Q18

VCI

Tilting cut-off valve

S30

M

Engine

I18

VD

Discharge valve

O23

VS

Safety valve

Q26

Min rpm

930 rpm

Nominal rpm loaded

2200 rpm

Max rpm unladen

2400 rpm

MA

Manipulator

MC

Master cylinder

A4

N

Level

S13

P

Hydraulic pump

I16

PAAV

Q39, M40

Front attachment connector

C32

PAAV (O) AV1


C34

PAAV (O) AV2


C37

PAAV (O) AV3


C39

PAAR(O) AR1

Rear attachment connector (option) single-effect

C29

PAAR(O) AR2

Rear attachment connector (option) dual effect

C27

PAAR(O) AR3

Rear attachment connector (option) hydraulic hook

C26

PAAR(O) AR4

Rear attachment connector (option) dual + single rear provision

C24

PAAR(O) AR5

Rear attachment connector (option) 2 dual rear provisions

C22

PAAR(O) AR6

Rear attachment connector (option) towing hook + dual rear provision

C19

PAAR(O) AR7

Rear attachment connector (option) towing hook + rear single provision

C17

Steering pump

C11

PD PFR

Trailer brake connector integrated in the VAFR

PP

Pressure test port

PRES PRES(O) PRF(O)


E4

Pressure switch

E13

Pressure sensitive switch (option)

G35


K13 S14

RLF

Brake fluid tank

C3

SC

Circuit selector

E9

70-02-M171EN

de 60x45 c183

O26

Hydraulic tank

R


Position 1: short steering

Attachment element (option)

EE EA(O)

70

Designation

HYDRAULIC DIAGRAM KEY

(24/04/2015)

MLT 731 TURBO SERIES F-E3 MLT-X 732 95P ST3A S1 1

2

3

4

HYDRAULIC SCHEMATIC DIAGRAMS 5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

7

42

A

A OPTION AV-3

P

VAFR E

PFR

LS B

CR (O)

C2

PD

CR (O)

C2

C2

C3

C1

C3

C1

C3

C1

P2

P1

P2

P1

P2

P1

PAAR (O)

OPTION AR-3

C2 C3

C1

P2

P1

OPTION AR-2

CR (O)

OPTION AR-1

PAAR (O)

OPTION AV-2

VVT (O)

PAAR (O)

C4 C2

VAI (O)

C4

C4 C2

C3

C1

C3

C1

P2

P1

P2

P1

C

200 cm3/tr

T

Y

N

1

C4

PAAV PAAV (O)

200b

L 200b

C4

PAAV

C

VVT (O)

OPTION AR-4

OPTION AR-5

VAI (O)

R

2

PAAR (O)

C4

AR 3

P

P

OPTION AR-6

OPTION AV-1

AV

SD

B1

OPTION AR-7

1

1

3 2

RLF

2

3

PAAV PAAV (O)

B T

PAAV

A

N

PAAR (O)

L

PAAR (O) PAAR (O)

B

PAAR (O)

MC

V1

SCFR S

V1 V2

SC

V2

LS 140b

PRES

S

OPTION CRC

7.5 b

T

E

P

VL VI VL PRES EF

CF

OUT

C1

V1

FDAV

21.99 cm3/tr

IN

VDAV

VC

C1

CSP

C2 335b

EV(S1)

30b +6/0

T

VDAR

C2 30b 1.5 L

AC

320b +15/0

EV(S2)

ES.AR

21.99 cm3/tr

V2

M

P

ES.AV

I

PX

VT

CSP LS

G

2

C2 300b

1

C1

3

G

C1

C2 335 b

CSP I

VASF (O)

V1

30 b V1

V2

V2

FDAR 30b V2 0.7 L 13 b

K P2 35b

PRF(O)

K

BA U 45±5b

P1 T

FEMS

M

M

10 µm

1

O

T

2

3

4b

C

Pressostat (O)

VD

P1

A1 B1 V1

P

V3 A2 B2 200 b

280 b

FR 6b

P

V A3 B3 200 b

280 b

A4 B4

A5 B5 T

D

MA

4

O

4b Pressostat (O)

4b Pressostat (O)

MA

5b

Q

Q

VS

P

T

15 µm absolu

N 125 µm absolu

Niveau moyen: 104L

VRP

CA PP

S

R

(24/04/2015)

Capacité 128 litres

EE

260 b

VCI EL

V2

T1

EI

V4

ET

EA

EA (O)

EF

S

Réserve direction

70-02-M171EN

70

V1

8


MLT 634 TURBO LSU SERIES F-E3 MLT 735/741 TURBO LSU SERIES 6-E3 MLT-X735 TURBO LSU SERIES 6-E3 HYDRAULIC DIAGRAM KEY Item

Designation

AC

Accumulator

CA

Suction strainer

CSP CR(O)

HYDRAULIC DIAGRAM KEY Position on diagram


Item

Designation

G37, M28

RLF

Brake fluid tank

C3

S17

SC

Circuit selector

E8


I38, K36, I30, G27

SD


C10


C18, C20, C27

D

Distributor

O38

Position 2: front wheel steering

Inlet element

Q26

Position 3: crab steering

EL



EE EA(O)

Position on diagram


Q31

SCFR

Lifting element

Q36

VC


E7

Compensating cylinder (MLT 634-735)

I27

EI

Tilting element

Q29

EA

Attachment element

Q34

ET

Telescope element

Q33

Tilting cylinder (MLT 735)

de 130x65 c380

EF

Closing element

Q38


de 140x70 c388

EVAA(O) EVP(O) EVTDF(O) FDAV

Rear attachment electrovalve (option) Pilot electrovalve (option) Telescope head electrovalve (option) Front disc brake

Compensating cylinder (MLT 741)

de 100x50 c310

VI

C18, C20, C22, C25

VCI

O23

VDAV

C36, C39

VDAR

I3

VL


Tilting cut-off valve Front steering cylinder Rear steering cylinder Lifting cylinder (MLT 634)

de 110x55 c310 E27

de 120x60 c445

M35 I4 I22 E35, G39

de 130x70 c720

Rear disc brake

I24

Lifting cylinder (MLT 735)

de 140x70 c720

FEMS

EMS head filter

K39


de 150x70 c716

FR

Return filter

Q19

M

Engine

G20

70

FDAR

930 rpm

Nominal rpm loaded

2200 rpm

VAFR

2400 rpm

MC

Manipulator

Telescope cylinder (MLT 634)

G30

Telescope cylinder (MLT 735)

Min rpm Max rpm unladen MA

VT

de 70x50 c2700

Telescope cylinder (MLT 741) Trailer brake valve

de 75x55 c2700 E3

VVT(O)


C34, A39

M38

VAI(O)


C33, C38

Master cylinder

A4

VASF


I35

N

Level

S15

VRP


O36

P

Hydraulic pump

G20

VS

Safety valve

O26


C32

PAAV (O) AV1


C34

PAAV (O) AV2


C36

PAAV (O) AV3


C39

PAAR(O) AR1


C30

PAAR(O) AR2


C29

PAAR(O) AR3


C28

PAAR(O) AR4


C26

PAAR(O) AR5


C23

PAAR(O) AR6


C21

PAAR(O) AR7


C18

Steering pump

C11

PAAV

PD PFR


PP

Pressure test port

M26


K15

PRF(O) PRES PRES(O) R 70-02-M171EN

de 70x50 c2100


E5

Pressure switch

E12


G35

Hydraulic tank

S15 (24/04/2015)

MLT 634 TURBO LSU SERIES F-E3 MLT 735/741 TURBO LSU SERIES 6-E3 MLT-X735 TURBO LSU SERIES 6-E3 3

4

5

6

7

8

9

10

11

12

13

14

15

A

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

MA

RLF

L

B

A B T

N

AV

SD P

R

C P Y

VAFR LS

N

PFR

B

E

AR 3

P

L 200 b 200 b

2

V1

SCFR S

V1 V2

SC

V2

LS

T

C4

CR (O)

C2

PD

CR (O)

C2

C3

C1

C3

C1

P2

P1

P2

P1

C4

C3

P2

C4

PAAR (O)

C2

PAAV

PAAR (O)

PAAR (O)

PAAR (O)

C2

C1

C3

C1

P1

P2

P1

PAAR (O)

OPTION AV-2

OPTION AV-1

VVT (O)

OPTION AR-1

OPTION AR-2

OPTION AR-3

PAAR (O)

PRES

140b

S

PAAR (O)

C4

1

41

42

A

VVT (O)

OPTION AR-4

OPTION AR-5

PAAR (O)

200 cm3/tr

T

OPTION AR-6

OPTION AR-7

1

1

3 2

B1

2

3

40

VAI (O)

MC

39

9

OPTION AV-3

PAAV (O)

C2

VAI (O)

2

CR (O)

1


C4

PAAV

PAAV (O)

C2

C4

PAAV

C3

C1

P2

P1

EVTDF (O)

C3

C1

P2

P1

PAAV

C

EVTDF (O)

OPTION CRC

7,5 bar

P

VL

E

VI VL C2

C1

300 b

G

B

P

EV(S1)

30 b 1.5 L

G

AC

C1

C2

335 b

EV(S2)

VC

ES.AR

ES.AV FDAV

C2

V2

M

45 cm3/tr L L1 L2

V1

CSP

PX

VT

S

VDAV

C1

320b+15/0

C2

30b+6/0

335 b

VDAR

VASF (O) T

FDAR

I

30 b

V1

30 b

V2

V1

CSP

V2

I

CSP

V1

V2 C1

0.7 L 13 b

C2

CSP

70 b

BA

35b

PRF(O)

V1

V2

U

45±5B

K

K P1

T 10 µm

Ø1

M

0.32 L 100 b

1

VCI

M

LS

b B1 A1

D

T

2

3

MA M

AC

PP

P

FEMS

b B2 A2

B3 A3

b

B4 A4

4

B5 A5

D

DLS b

b

O

O

P 3

2

1

4

14V

EVP (O) T

FR

Q

6b

VS

Tdd

EE

a

b

23 b

VRP

LS

270 b

T

T

B

A

190 b 280 b

a 5b

a

B

T

EI a

EA(O)

200 b

T

ET

T

EA

B

280 b

a

EF

EL

Gicleur 0.8 mm

Pr Tpr

Q

15 microns absolu

N S

125 microns absolu

Niveau moyen: 110L

R

(24/04/2015)

CA


S Réserve direction 12 litres

70-02-M171EN

70

C1

3

X

1 2

PRES

10


MLT 1035 L TURBO LSU SERIES 6-E3 MLT-X1035 100 L TURBO LSU SERIES 6-E3 HYDRAULIC DIAGRAM KEY

HYDRAULIC DIAGRAM KEY Item AC

Accumulator

CA

Suction strainer

CSP



Item

Designation

Position on diagram



O28, G37


S16 G26, G30, K36, I39

SC

Circuit selector

E9

CSPD

Double counterbalance valve

C27, I30

SCFR


E7

CR(O)


C25

VASF


I36

D

Distributor

Q39

VCI


O36

EE

Inlet element

S26

VC

Compensating cylinder (MLT 735)

I26

de 110x55 c310

Leveling element

S30

VCD

Leveling cylinder

C29

de 110x50 c165

Lifting element

S36

VI


G26

de 120x60 c416

ECD EL EI

Tilting element

S29

VDAV

Front steering cylinder

I4

EA

Attachment element

S34

VDAR


I20

ET

Telescope element

S32

VL


E35, G39

de 140x70 c720

EF

Closing element

S38

VT1


G30

de 100x60 c2850 de 80x50 c2850

EVAA(O) EVP EVTDF(O) FDAV

70

Designation

Position on diagram

Rear attachment electrovalve (option) Pilot electrovalve Telescope head electrovalve (option) Front disc brake

C19, C22, C24

VT2


E30

Q22

VAFR

Trailer brake valve

E3

C36, C39

VVT(O)


C35, A39

I3

VAI(O)


C34, C38

FDAR

Rear disc brake

I22

VRP


Q36

FEMS

EMS head filter

M39

VS

Safety valve

Q26

FR

Return filter

Q18

M

Engine

I19

Min rpm

930 rpm

Nominal rpm loaded

2200 rpm

Max rpm unladen MA MC N P

Manipulator

2400 rpm

Master cylinder

A4

Level

S13

Hydraulic pump

I18 C32

PAAV (O) AV1


C34

PAAV (O) AV2


C37

PAAV (O) AV3


C39

PAAR(O) AR1

Towing hook rear attachment connector (option)

C25

PAAR(O) AR2


C22

PAAR(O) AR3 PCR


C20

Cooling circuit pump

Q13

PD

Steering pump

C12

PFR


E4

PP

Pressure test port

O26


K13

PRF(O) PRES PRES(O) R RH


A17, M39


PAAV

de 60x45 c183

Pressure switch

E13


G35

Hydraulic tank

S14

Oil cooler

Q15

RLF

Brake fluid tank

A3

SD


C10

Position 1: short steering 70-02-M171EN

(24/04/2015)

MLT 1035 L TURBO LSU SERIES 6-E3 MLT-X1035 100 L TURBO LSU SERIES 6-E3

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

A

17

18

19

20

21

22

23

24

25

26

27

28

B

L

A B T

N

3 2

RLF

B1

2

3

1

SD R

C

P 200b

L 200b

2

C2

1

C4

Y

VAFR LS

N

E

PFR

B

V1

V1

SCFR V2 S

SC

PD

LS

140b

P1

33

36

37

38

Vers V1 du CSD de DEVERS

P2

P1

EVAA (O)

P2

CSD

C2


C3

OPTION AV-2

VVT (O)

PAAV VAI (O)

C1

P1

PAAV

EVAA (O)

PAAV (O)

C2 C4

C1

39

40

41

42

A

C1

P2

P1

PAAV

C

C1

C3

EVTDF (O)

PAAV (O)

C2

C4

PAAV

C3

V1

V2

P2

EVTDF (O)

P1

OPTION CRC

7.5 b

T

35

Ø 0.9


PRES

S

34

VVT (O)

CR (O)

C2 C4

C1

C3

EVAA (O)

PAAR (O) Vers V2 du CSD de DEVERS


C1

P2 V2

32

VCD

Ø 0.9

OPTION AR-1

C2 C4


200 cm3/tr

T

OPTION AR-2

PAAR (O)

C3

P

31

OPTION AV-1 AR

3

P

OPTION AR-3

1

AV

30

OPTION AV-3

MA

MC

29

11

VAI (O)

1


E

VT2

P

VL

C1

VI

C2

CSP

VL

B

FDAV

L

L1 L2

V1

M

ES.AR

ES.AV

I

V1

V2

S

VDAV

C1

30b 1.5 L

AC

V2 C1

VC

C2

C1

C2

CSP

320b+15/0

I

30b+6/0

T

VDAR

G

C2

VT1

CSP

P 45 cm3/tr

C2

V1

FDAR

V1

V2

VASF (O) V1

V2

C1

0.7 L 13 b

C2

CSP

K

V2

BA

35b

PRF(O)

V1

V2

U 45±5B

P1

T

FEMS

M

M

10 µm

Ø1

P

T

2

3

MA

0.32 L 100 b

VCI

AC

PP

1

4

O

O

M

LS

D

b B1 A1

b B2

A2

B3

A3

B4

A4

b

B5

A5

D

DLS b

FR 6b

Q 14 cm3/tr

15 µm absolu

3

2

1

4

125 µm absolu

Niveau moyen: 110L

S

R

CA


Q

Tdd

VS

VRP a

14 V

EVP T

N

b

P

5b

RH

PCR

(24/04/2015)

K

EE

a

23 bar

b

LS

270 b T

T

B

A

190b 280b

a

T

B

B

EI

ECD a

200 bar

T

ET

280 bar

EA a

EF

EL

Gicleur Ø 0.8 mm

Pr

Tpr

S

Réserve direction 12 litres

70-02-M171EN

70

C1

3

X

G

1 2

PRES

12


MLT 634 -120 LSU SERIES F-E3 MLT 634 -120 LSU POWERSHIFT SERIES F-E3 MLT 735/741 -120 LSU SERIES 6-E3

MLT-X735/-X741-120 LSU SERIES 6-E3 MLT 735/741 -120 LSU POWERSHIFT SERIES 6-E3 MLT-X735 -120 LSU POWERSHIFT SERIES 6-E3

HYDRAULIC DIAGRAM KEY Item AC

Accumulator

CA

Suction strainer

Position on diagram


Item

Designation

O27, G36

RH

Oil cooler

S15

RLF

Brake fluid tank

Position on diagram C3

CSP


I29

SC

Circuit selector

E8


C16, C19, C25

SCFR


E7

SD


C9

D

Distributor

Q37

EE

Inlet element

S25



S30


Lifting element

S36


EL EI

Tilting element

S28

EA

Attachment element

S34

ET

Telescope element

S32

EF

Closing element

S38

EVAA(O) EVP(O) EVTDF(O) FDAV

Rear attachment electrovalve (option) Pilot electrovalve (option) Telescope head electrovalve (option) Front disc brake

I4 I21

C36, C38

VL

I3

C34, A39


C33, C38

Min rpm

930 rpm

VAI(O)

Nominal rpm loaded

2200 rpm

VS

2360 rpm

Trailer brake valve

E3

Safety valve

Q25

VRP


Q36

O40

VASF


I35

VCI


O35

A3

P

Hydraulic pump

G13, I18


C31

PAAV (O) AV1


C34

PAAV (O) AV2


C36

PAAV (O) AV3


C39

PAAR(O) AR1


C28

PAAR(O) AR2


C27

PAAR(O) AR3


C25

PAAR(O) AR4


C23

PAAR(O) AR5


C21

PAAR(O) AR6


C19

PAAR(O) AR7


C16

PCR


Q12

PD

Steering pump

C11

PFR


E4

PP

Pressure test port

O25

Pressure switch

E12

PRES(O)


G34

PRF(O)


K13

Hydraulic tank

S12

de 70x50 c2700 de 75x55 c2700


S12

R

G30

VAFR

Master cylinder

70-02-M171EN

Telescope cylinder (MLT 735) Telescope cylinder (MLT 741)

VVT(O)

Level

PRES

VT

de 140x70 c720 de 150x70 c716

Q17

N PAAV

E35, G39


I13, I19

Max rpm unladen MC


de 130x65 c380 de 140x70 c388


I22

Manipulator

G26


M39

MA

Tilting cylinder (MLT 735) Tilting cylinder (MLT 741)

VDAV

Rear disc brake Return filter

VI

de 100x50 c310 de 110x55 c310

VDAR

EMS head filter Engine

I26

Q22

FEMS M

Compensating cylinder (MLT 735) Compensating cylinder (MLT 741)

C16, C18, C21, C23

FDAR FR

VC


Q14

CR(O)

EA(O)

70

Designation

HYDRAULIC DIAGRAM KEY

de 60x45 c183


(24/04/2015)

MLT 634 -120 LSU SERIES F-E3 MLT 735/741 -120 LSU SERIES 6-E3 MLT 735/741 -120 LSU POWERSHIFT SERIES 6-E3 2

3

4

5

6

7

8

9

10

11

12

13

14


15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

A

38

39

40

41

13 42

A

OPTION AV-3

AV

SD R

C

200b

P

V1

SCFR

VAFR E

PFR

LS B

L 200b

V1

V2 S

SC

V2

C4

1

CR (O)

C2

PD C3

C1

P2

P1

200 cm3/tr

T

Y

N

AR 2

3

P

P

PAAR (O)

C4

C2

EVAA (O)

C1

P2

P1

EVAA (O)

OPTION AV-2

OPTION AV-1

C4

CR (O)

C3

OPTION AR-4

C2 C3

C1

P2

P1

C4

C2

EVAA (O)

C3

C1

P2

P1

OPTION AR-3

OPTION AR-2

VVT (O)

PAAV

OPTION AR-1

CR (O) PAAR (O) PAAR (O)

PAAV PAAV (O)

1

OPTION AR-5

OPTION AR-6

C2

C4

PAAV

B1

OPTION AR-7

1

VAI (O)

3 2

RLF

2

3

PAAR (O) PAAR (O)

A B T

N

PAAR (O) PAAR (O)

L

PAAR (O)

B

MC

VVT (O)

C3

C1

P2

P1

VAI (O)

1

MLT 634 -120 LSU POWERSHIFT SERIES F-E3 MLT-X735/-X741 -120 LSU SERIES 6-E3 MLT-X735 -120 LSU POWERSHIFT SERIES 6-E3

PAAV (O) C4

C2

PAAV

C3

C1

P2

P1

EVTDF (O)

EVTDF (O)

EVAA (O)

C

LS

PRES

140b

OPTION CRC

7.5 b

S

E P

T

VL VI VL C1

60 cm3/tr

M

or

S

FDAV

C1

PX

B

V1

S

L L1 L2

VDAV

AC

C1

C2 335b

EV(S2)

VC

C1

CSP

CSP

320b+15/0

C2 335b

I

30b+6/0

T

VDAR

30b 1.5 L

V2

P M

63 cm3/tr

G

C2 EV(S1)

VT

CSP

ES.AR

P

Pump Rexroth

ES.AV

I

B

Pump Casappa

X

C2 300b

X

3

G

1 2

PRES

V1

V2

VASF (O)

30b V1

V2

FDAR 30b

CSP

K

0.7 L 13 b

C2

C1

K

70b

BA

35b

PRF(O)

V1

U

V2

45±5b P1

T

FEMS

M P Ø1

MA

AC

PP

T

0.32 L 100 b

M

10 µm

1

VCI

3

2

4

O

O

LS

M

b B1 A1

D

b B2 A2

A3

B3

B4

A4

b B5

MA

D

A5

DLS

6b

RH

Q 14 cm3/tr

15 µm absolu

125 µm absolu

Niveau moyen: 110L

S

R

(24/04/2015)

3

2

1

4

Q

Tdd

VS

VRP a

a 14V

EVP (O) T

CA


P

5b

PCR

N

b

b

FR

EE

T

270b T

B

A

190b 280b a

T

EI

EA(O) a

B 200 b

T

ET

23 b

b

LS T

B 280 b

EA a

Gicleur 0.8 mm

EF

EL Pr

Tpr

S


70-02-M171EN

70

V2

V1

14


MLT 741 H TURBO LSU SERIES 6-E3 HYDRAULIC DIAGRAM KEY Item AC

Accumulator


Item

M28, K40

SCFR

Designation

Position on diagram


E7

CA

Suction strainer

S17

TH7

TH7 valve

C6

CAR

One way valve

I18, I20

SD


C9

CAR(O)

One way valve (option)

O13

CSP


G27, I30, K36, I39

CR(O)


C18, C20, C26

D EE

Distributor


Position 1: short steering Position 2: front wheel steering Position 3: crab steering

O38

VC


I27

de 150x55 c310

Inlet element

Q26

VCI

Tilting cut off valve

O36


Q31

VI

Tilting cylinder

G27

EL

Lifting element

Q37

VDAV


I4

EI

Tilting element

Q29

VDAR


I22

EA

Attachment element

Q35

VL

Lifting cylinder

G35, G39

de 150x70 c716

ET

Telescope element

Q33

VT

Telescope cylinder

I30

de 75x55 c2700

Safety valve

Q26

EA(O)

EF EVAA(O)

Closing element Rear attachment electrovalve (option)

Q38

VS

E17, E20, E22, E24

VAFR

Trailer brake valve

EVCV

Speed change electrovalve

K11

VVT(O)


C35, C40

Pilot electrovalve (option)

Q23

VAI(O)


C34, C39

E37, E39

VPV

Gear shift cylinder

K11

I2

VRP


Q36

FDAV

Telescope head electrovalve (option) Front disc brake

FDAR

Rear disc brake

I23

FEMS

EMS head filter

M39

FR

Return filter

Q19

FT

Transmission filter

G16

Engine

I20

M

930 rpm

Nominal rpm loaded

2200 rpm

Max rpm unladen

2360 rpm

Manipulator

MC

Master cylinder

MH

M39, O40 C3

Hydrostatic motor

G6

N

Level

S14

P

Hydraulic pump

PAAV


P15 C33, C35, C37, C40

PAAV(O)

Front attachment connector (option)

C37, C40

PAAR(O)

Rear attachment connector (option)

C18, C20, C22, C25, C28, C29

PCR


PD

Steering pump

C9

PFR


E4

Q13

PP

Pressure test port

O27

PH

Hydrostatic pump

I18

PRF(O) PRES PRES(O) R RH(O)


C3

Pressure switch

E12


G35

Hydraulic tank

S14

Oil cooler (option)

O13

RLF

Brake fluid tank

SC

Circuit selector

70-02-M171EN

de 60x45 c183


Min rpm

MA

de 140x70 c388

E3

EVP(O) EVTDF(O)

70

Designation

HYDRAULIC DIAGRAM KEY Position on diagram

C2 (24/04/2015)

MLT 741 H TURBO LSU SERIES 6-E3

1

2

3

4

5

HYDRAULIC SCHEMATIC DIAGRAMS 6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

15 42

A

A OPTION AV-3

3 2

RLF

C

B1 P

PRF(O)

T

PD

200b

VAFR PFR

V1

LS

N

LS

SCFR

C1

P2

P1

EVAA (O)

OPTION AV-1 C4

CR (O)

C2 C3

C1

P2

P1

EVAA (O)

VVT (O)

OPTION AR-4

C2 C3

C1

P2

P1

C4

C2 C3

C1

P2

P1

EVAA (O)

OPTION AR-3

OPTION AR-2

CR (O) PAAR (O) PAAR (O)

OPTION AV-2

VVT (O)

PAAV

OPTION AR-1

PAAV (O)

C2

VAI (O)

C4

PAAV

EVAA (O)

C4

PAAV

C3

C1

P2

P1

7.5 bar

C

PAAV C1

C3

EVTDF (O)

PAAV (O)

C2

P2

EVTDF (O)

P1

PRES

140b

V2 S

B

C3

200 cm3/tr

T

C4

CR (O)

C2

Y

E

PAAR (O)

1

2

L 200b

R

A P

3

OPTION AR-5

OPTION AR-6

C4

AR

AV P

TH7

OPTION AR-7

1

1

SD

Gicleur Ø 1 mm P

2

3

VAI (O)

A B T

N

PAAR (O) PAAR (O)

L

PAAR (O) PAAR (O)

B

PAAR (O)

MC

E

OPTION CRC

P

T

VL VI VL

a

a

Fa Fa1 PS

b T1

PH M

S MH

VDAV

G

CAR

X2

x

MA Fs S

x

A x

X3 A

C1

VT

CSP V1

x x

X1

C2 300b

X1

0.5 b

3

C1

63 cm3/tr

x

x

MB Fe

Y

P

L L1 L2 T G

B

x

B

absolu A

1 2

x

BT

b

ES.AV FDAV

B TU

x

MH

B

PX

EV(S1)

VDAR

30b 1.5 L

AC

C1

C2 335b

EV(S2)

VC

C1

CSP

C2 335b

CSP I

320b+15/0 30b+6/0

2b

C2

V2

T2

CAR

G

PRES

15 µm

ES.AR

M1

I

FT

X

x

G

T

FDAR

VASF (O)

30b V1

V2

V1

V2

30b V2 C1

K

EVCV

C2

P

CSP

70b

A B T

V1

AC

V2

FEMS

M

Ø1

0.32 L 100 b

P

T

2

3

MA

1

4

OPTION REFROIDISSEMENT ELECTRO-VENTILLE

O

MA

RH LS

M

b B2 A2

b B1 A1

D

FR 6b

b B5

a

b

D

A5

RF

PCR

3

2

1

125 µm

Niveau moyen: 110L


VS

Tdd

VRP

4

EVP (O)

14V T

CA

EE

a

LS T

270b T a

absolu

R

b

b

14 cm3/tr

N

(24/04/2015)

B4 A4

P

5b

15 µm absolu

S

A3

B3

DLS

CAR

Q

M

10 µm

VCI

AC

PP O

K

0.7 L 13 b

B A T 190b 280b EI

EA(O) a

B 200b

T

T ET

EA a

B 280b

Q

23b

EL

Gicleur Ø 0.8 mm

EF Pr Tpr

S


70-02-M171EN

70

VPV

V1


70

16

70-02-M171EN

(24/04/2015)

HYDRAULIC COMPONENTS LOCATION

pages HYDRAULIC CIRCUITS KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 –– 1 - MAIN HYDRAULIC CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 –– 2 - TELESCOPING LIFT HYDRAULIC CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 –– 3 - BOOM HYDRAULIC CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 –– 4 - BOOM COMPENSATION HYDRAULIC CIRCUIT - BOOM SUPPLY . . . . . . . . . . . . . . . . . 8 –– 5 - LEVELING HYDRAULIC CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

70

–– 6 - STEERING HYDRAULIC CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

(10/12/2014)

70-03-M171EN

2


HYDRAULIC CIRCUITS KEY Hydraulic circuits: 1 - Main 2 - Telescoping lift 3 - Boom

70

Item

4 - Boom supply compensation 5 - Tilting corrector 6 - Steering Designation

Representation on circuit 1

2

3

BA

POWER SUPPLY BLOCK + ACCUMULATOR

x

CA

SUCTION STRAINER

x

CSD

DOUBLE COUNTERBALANCE VALVE (VT1)

CSP

COUNTERBALANCE VALVE (Lifting cylinder)

x

x

CSP

COUNTERBALANCE VALVE (Tilting cylinder)

x

x

CSP

COUNTERBALANCE VALVE (VT2)

x

x

4

5

6

x

x

D

7-ELEMENT DISTRIBUTOR

D3

3-POSITION STEERING DISTRIBUTOR

x

ES.AR

REAR AXLE

x

ES.AV

FRONT AXLE

x

FEMS

EMS HEAD FILTER

x

FR

RETURN FILTER

x

MA

MANIPULATOR

x

N

LEVEL

x

P

HYDRAULIC PUMP

x

PAAV

x

x

x

x

x

x

FRONT ATTACHMENT CONNECTOR

x

PD

STEERING PUMP

PP

PRESSURE TEST PORT

x

R

HYDRAULIC TANK

x

SC

CIRCUIT SELECTOR

x

SCFR

TRAILER BRAKE CIRCUIT SELECTOR

x

VACM

MOVEMENT CUT-OFF VALVE

x

VD

DISCHARGE VALVE

x

VC

COMPENSATING CYLINDER

x

x

x

VCD

LEVELING CYLINDER

VDAR

REAR STEERING CYLINDER

x

VDAV

FRONT STEERING CYLINDER

x

x

VI

TILTING CYLINDER

VL

LIFTING CYLINDER

x

VT1

TELESCOPE CYLINDER 1

x

VT2

TELESCOPE CYLINDER 2

x

70-03-M171EN

Electrical code equivalence

x

(10/12/2014)


3

1 - MAIN HYDRAULIC CIRCUIT MLT 634-120LSU S.F-E3/MLT 634-120LSU PS S.F-E3/MLT 634-LSU Turbo S.F-E3 MLT 735-120LSU S.6-E3/MLT-X735-120LSU S.6-E3/MLT 735-120LSU PS S.6-E3/MLT-X735-120LSU PS S.6-E3/ MLT 735-LSU Turbo S.6-E3/MLT-X735- LSU Turbo S.6-E3/MLT 741-120LSU S.6-E3/MLT 741-120LSU PS S.6-E3/ MLT 741-LSU Turbo S.6-E3/MLT 1035L-LSU Turbo S.6-E3/MLT-X1035 100-LSU Turbo S.6-E3 MA MA

VACM

4

3 2

T

P

FEMS

1

D

70

BA

PP

D N

BA

or Pump Casappa

R CA

Pump Rexroth

FR (10/12/2014)

70-03-M171EN

4


MLT 731 Turbo S.F-E3/MLT-X 732 95P ST3A S1 MA MA

FEMS

3

4

P 2

T 1

D

70

BA

PP

VD

D

N

R

BA

P

CA

70-03-M171EN

FR

(10/12/2014)


5

2 - TELESCOPING LIFT HYDRAULIC CIRCUIT MLT 634-LSU Turbo S.F-E3/MLT 634-120LSU S.F-E3/MLT 634-120LSU PS S.F-E3 MLT 735-LSU Turbo S.6-E3/MLT-X735-LSU Turbo S.6-E3/MLT 735-120LSU S.6-E3/MLT-X735-120LSU S.6-E3/ MLT 735-120LSU PS S.6-E3/MLT-X735-120LSU PS S.6-E3/MLT 741-LSU Turbo S.6-E3/MLT 741-120LSU S.6-E3/ MLT-X741-120LSU S.6-E3/ MLT 741-120LSU PS S.6-E3

D

CSP

VT

VL

CSP

70

CSP

MLT 731 Turbo S.F-E3 MLT-X 732 95P ST3A S1 D

VT VL

CSP

(10/12/2014)

CSP

70-03-M171EN

6


MLT 1035L-LSU Turbo S.6-E3/MLT-X1035 100-LSU Turbo S.6-E3

D

CSP

VT1

VL

70

CSP

CSP

VT1

VT2 CSP

70-03-M171EN

(10/12/2014)


7

3 - BOOM HYDRAULIC CIRCUIT MLT 741-LSU Turbo S.6-E3/MLT 741-120LSU S.6-E3/MLT-X741-120LSU S.6-E3/MLT 741-120LSU PS S.6-E3 MLT 735-LSU Turbo S.6-E3/MLT-X735-LSU Turbo S.6-E3/MLT 735-120LSU S.6-E3/MLT-X735-120LSU S.6-E3/ MLT 735-120LSU PS S.6-E3/MLT-X735-120LSU PS S.6-E3/MLT 731 Turbo S.F-E3/MLT-X 732 95P ST3A S1

PAAV

D

VI

C

B A

70

CSP

MLT 1035L-LSU Turbo S.6-E3/MLT-X1035 100-LSU Turbo S.6-E3

PAAV

D C

D

B

A

C B

A

VI CSP

(10/12/2014)

70-03-M171EN

8

HYDRAULIC COMPONENTS LOCATION 4 - BOOM COMPENSATION HYDRAULIC CIRCUIT - BOOM SUPPLY MLT 634-LSU Turbo S.F-E3/MLT 634-120LSU S.F-E3/MLT 634-120LSU PS S.F-E3 MLT 735-LSU Turbo S.6-E3 /MLT X735-LSU Turbo S.6-E3/MLT 735-120LSU S.6-E3/MLT X735-120LSU S.6-E3/ MLT 735-120LSU PS S.6-E3/MLT-X735-120LSU PS S.6-E3/MLT 741-LSU Turbo S.6-E3/MLT 741120LSU S.6-E3/ MLT-X741-120LSU S.6-E3/MLT 741-120LSU PS S.6-E3/MLT 1035L-LSU Turbo S.6-E3 / MLT-X1035 100-LSU Turbo S.6-E3

D

70

VC

MLT 731 Turbo S.F-E3/MLT-X 732 95P ST3A S1

D

VC

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9

5 - LEVELING HYDRAULIC CIRCUIT MLT 1035L-LSU Turbo S.6-E3/MLT-X1035 100-LSU Turbo S.6-E3

S1F

CSD D VCD

70

BA

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10

HYDRAULIC COMPONENTS LOCATION 6 - STEERING HYDRAULIC CIRCUIT MLT 634-120LSU S.F-E3/MLT 634-120LSU PS S.F-E3/MLT 634-LSU Turbo S.F-E3 MLT 735-120LSU S.6-E3/MLT-X735-120LSU S.6-E3/MLT 735-120LSU PS S.6-E3/MLT-X735-120LSU PS S.6-E3/ MLT 735-LSU Turbo S.6-E3/MLT-X735- LSU Turbo S.6-E3/MLT 741-120LSU S.6-E3/MLT 741-120LSU PS S.6-E3/ MLT 741-LSU Turbo S.6-E3/MLT 1035L-LSU Turbo S.6-E3/MLT-X1035 100-LSU Turbo S.6-E3

PD ES. AV

D3 R

VDAV

SC D SCFR

VDAR

70

ES. AR

MLT 731 Turbo S.F-E3/MLT-X 732 95P ST3A S1

PD ES. AV

VDAV

D3 R

SC SCFR VDAR

ES. AR

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P

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HYDRAULIC CONTROL AND ADJUSTMENT

pages DISTRIBUTOR CONTROL LOGIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 OPERATING PRINCIPLES OF AGGRAVATING MOVEMENTS CUT-OFF . . . . . . . . . . . . . . . . . 4 SX 14 S DISTRIBUTOR REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 –– 1 - SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 –– 2 - TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 –– 3 - ESSENTIAL RULES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 –– 4 - REMOVAL AND REFITTING OF THE SX 14 S UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 –– 6 - SPECIFIC TIGHTENING TORQUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 CASAPPA MVP 60 PUMP ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 –– PRESSURE TEST PORT VALUES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 –– DELTA ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 CASAPPA HYDRAULIC PUMP TIGHTENING TORQUES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 –– AIR BLEED PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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–– 5 - SX 14 S UNIT REPAIR PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2


DISTRIBUTOR CONTROL LOGIC The JSM sends directional and proportional value data from thumbwheels 1 and 2 to the S.P.U computer. The computer converts these data into PWM control signals for the 4 coils controlling attachment and boom movements.

A12 R2

F N R

2

3

6

4

5

7

1

11

8

12

170

10

175

9

168

2

D+ D-

X36 172

1

X36

D+ D-

174

X78

R1

BP5

Down

173

Up

EP27

CN1-B / X57

5

16

22

IN ANA 4

24

SPU

A3

170

171

IN TOR 14 IN ANA 3

OUTPWM 6

OUTPWM 5

29

CN1-B / X57

18

177

2

179

178

14

12

1 10 18 26

120 ohms

28

1

2

X57

14

9 17 25 34

11

70-04-M171EN

Y15

1

SORTIE TELES

2

X28

Y16

193

177

192

X29

12 11 10 9 8 7

1

RENTREE TELES

2

193 noir

ACCES -

2

1 2 3 4 5 6

X105

Y18

6

192 noir

177 177

1

5

176

176 176

X34

2

X105

2

X105

ACCES +

1

194 noir

Y17

8

X105

1

7

X87

194

179 179

4

179

X35

3

195 noir

178

178

X87

195

178

70

CN1-A / X56

176

7 13 19 26

OUTPWM 8

OUTPWM 7

CN1-A / X56

IN TOR 15

X56 1 8 14 20

12 11 10 9 8 7

EP26

168

169

169

1 2 3 4 5 6

(10/09/2012)


3

JSM

SPU

70

Rexroth distributor

Walvoil distributor

(10/09/2012)

70-04-M171EN


4

OPERATING PRINCIPLES OF AGGRAVATING MOVEMENTS CUT-OFF

Movement cut-off is activated by the VRP/S.P.U or VCI at 105% gauge signal. If the gauge signal indicates 112% the VS is also cut-off (These figures can change, depending on the boom angle) The VS cut-off occurs 7% after proportional cut-off to account for the possibility of the S.P.U taking longer to cut off the proportionals. The VS, therefore cuts off all movements at 112%.

MA

1 1

VCI

LS

M

b B1 A1

D

b B2 A2

A3

B3

A4

B4

b B5

3

2

4

D

A5

DLS

2

b

b

P Tdd

VS

70

a

a

b

LS T

T

T

EE

B

A

B

T

EI a

EA(O) a

T

T

ET

EA

3

VRP

B

EF

EL a

Pr

Tpr

1. Tilting cut-off valve (VCI). 2. Movement cut-off valve (VS). 3. Control Regulation Valve (VRP).

70-04-M171EN

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5

70

SX 14 S DISTRIBUTOR REMOVAL

1 - SAFETY INSTRUCTIONS

Safety instructions and important notices which you must closely observe are shown in this chapter in the following way:

bb

I nstructions to be followed without fail to ensure your safety and avoid the risk of damage to the equipment in the course of maintenance operations.

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2 - TROUBLESHOOTING

bb

efore carrying out any of the fault-finding procedures to detect the cause of the breakdown B or before removing the control block, it is essential to first carry out an examination of the machine’s hydraulic circuit in order to eliminate any breakdown resulting from causes external to the SX 14 S distributor unit.

Abnormal operation of the actuators connected to the control block. Results observed

70

Lack of power at all actuators

Probable cause - LS pressure relief valve defective

- LS pressure relief valve out of adjustment Lack of power on one - Secondary overpressure actuator only limiter out of adjustment - Secondary pressure relief valve jammed "open" (return to tank) Lack of speed in one or all For SX 14 S fitted with movements “Open center” on the inlet element: “Open center” piston stuck in position P towards T Lack of speed in one - Incorrect slide stroke movement - Adjustable hydraulic control stop out of adjustment - Individual compensator pressure blocked

- L oad hold check valve faulty - E xcessive play between the body and the slide Steering abnormally hard Flow divider adjustment problem

Additional checks Measure pressure (see unit specifications)

70-04-M171EN

Flow Divider regulation piston filter clogged

- Replace the LS pressure relief valve (see section 5.1) - Adjust the setting - Reset to design pressure (see unit specifications) - Replace the secondary pressure relief valve (see section 5.5) Change the body + piston assembly

Manual control: measure slide stroke. Direct electrical control: check the coil resistance (R: 2,5 Ohm at 25°C)

Failure to maintain pressure

Excessive delay in response to steering

Solutions

-C ontrol piston sliding freely -C ontrol piston jammed

- If stroke is incorrect, change the body + slide assembly. If the resistance is incorrect change the coil - Adjust the setting - Replace body and pressure compensator assembly - Change the body + valve assembly - Change the body + slide assembly - Replace control subsystem (see section 5.3) - Replace body and control sub-system (see sections 5.7 and 5.3) Change the filter

(10/09/2012)


Results observed Probable cause Additional checks Clamps faulty (SX14S - O utput element coil - C heck coil resistance fitted on loading shovel) defective (R: 6 Ohm at 20°C) - O utput element ball valve fault - 2-way valve defective Simultaneous movement - Individual compensator fault orifice blocked - Individual compensator pressure blocked - LS line leakage

7

Solutions If resistance is incorrect, change the coil Change the ball valve Change the 2-way valve - R e m o v e a n d c l e a n individual compensator (see section 5.7) - R e p l a c e b o d y a n d pressure compensator assembly - Replace LS flow regulator (see section 5.2)

Abnormal machine operation. Results observed Probable cause Engine remains under - Flow regulator blocked load after slides have - R egulator filter blocked returned to neutral

Additional checks

Solutions - C h a n g e t h e f l o w regulator (see section 5.2) - Change the filter

Results observed Coupling fault

Probable cause -M echanical defect -D efective coil

Additional checks Solutions - C heck coil resistance - Change the mechanical ( e l e c t r i c l o c k s ) lock (R: 16,5 Ohm at 20°C) - If resistance is incorrect, change the coil I n c r e a s e d f o r c e o n Control block assembly Check tightening torque Loosen and adjust to controls or slide return tie rods too tight tightening torque 42 ± defective 10% Nm. First free the control block from its fixing points Slide seals worn out Replace the slide seals (see section 5.6)

bb

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Abnormal control block operation.

8

HYDRAULIC CONTROL AND ADJUSTMENT Visually observable defects. Results observed Slide oil leaks

Probable cause

Additional checks

Defective slide seals

Oil leaks at pressure relief Defective seals valves and plugs Oil leakage between elements

Defective seals between elements

Hydraulic controller oil leaks

- Defective seal between unit and housing - Defective adjustable stop nut seal

Damaged joystick control bellows

Solutions Replace the slide seals (see section 5.6) Remove the pressure relief valve or the plug and replace the seals Remove distribution modules and change seals (see section 5.7) Change the seal

Replace boot

3 - ESSENTIAL RULES

70

GENERAL NOTES CONCERNING CONNECTING UP THE DISTRIBUTION UNIT - When the block is removed all openings must be plugged immediately to avoid any contamination of the hydraulic circuit. - When re-fitting the block remove the plastic plugs from openings just before re-making connections. - Do not tighten connectors to a torque greater than that specified in the assembly instructions. - Check the quality of the hydraulic oil and the filtration capacity during all maintenance or repair operations. - The use of PTFE tape, hemp and jointing compound is forbidden. - Hydraulic lines and connections must be under not strain of any kind.

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9

4 - REMOVAL AND REFITTING OF THE SX 14 S UNIT 4.1 GENERAL GUIDANCE

bb

efore removing the SX 14 S control block from the machine, the block and its surroundings B must first be properly cleaned (Do not subject the block directly to a pressurized water jet). No surrounding impurities must enter the hydraulic circuit: place plastic blanking pieces on the pipes and on the ports as soon as they are removed. Wear protective clothing and use suitable equipment to avoid accidents, in particular with the fluid. Use lifting rings and appropriate handling equipment. Place all the actuators of the machine that are connected to the control block in the rest position (bearing on the ground, at the bottom stop, etc.) to avoid accidents due to uncontrolled movements when disconnecting the hydraulic circuit. With the machine stopped: release stored pressures by moving all the distribution slides.

4.2 SX 14 S UNIT REMOVAL - F it a vacuum pump to the tank to limit oil leakage when connections are broken. -A s soon as lines are disconnected from the control block, plug all openings. - Be sure to catch any escaped oil in an appropriate recipient. - Unscrew the mounting screws and remove the control block.

- Ensure all mating faces are perfectly clean. - Check the mating face on the machine for flatness (Tolerance 0,5 mm). - Check the condition of all seals on line connectors. - Clean the block if it has been in prolonged storage. -Correctly offer the block up to the machine and fix it in place with bolts. -C onnect the lines to the block as per the connecting diagram and the specified torques. - Ensure that hoses are deployed so that are not twisted or rubbing on anything. - When fitting has been correctly carried out, the control block can be put back into service: - Decalibrate the LS relief valve before putting the machine into service. - Keep one of the distributor lines activated after the hydraulic cylinder connected to it reaches its end stop.

bb

n the distribution line in question, the value of the secondary pressure limiter must be greater O than that to be set with the LS limiter.

- Adjust the maximum pressure measured at M. with the LS pressure limiter. - Retighten the locknut on the adjusting screw to torque: 20 ± 10% Nm.

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4.3 SX 14 S UNIT REFIT

10


5 - SX 14 S UNIT REPAIR PROCEDURES

5.1 CHANGING THE LS LIMITER NOTE: There is no need to remove the control block from the machine for this operation.

bb

Machine stopped: - Place all the actuators of the machine connected to the control block in the rest position. -R elease stored pressures by moving all the distribution slides. NOTE: Catch any escaped oil in an appropriate container. On the inlet element, unbolt the LS limiter (17 mm spanner). Reassembly: tightening torque: see section 6. 5.2 CHANGING THE FLOW REGULATOR NOTE: There is no need to remove the control block from the machine for this operation.

70

bb

Machine stopped: - Place all the actuators of the machine connected to the control block in the rest position. -R elease stored pressures by moving all the distribution slides. NOTE: Catch any escaped oil in an appropriate container. On the inlet element, unbolt the LS limiter (22 mm spanner). Reassembly: tightening torque: see section 6. Filter removal and replacement Filter Using flat-nosed pliers, remove the filter from the regulator.

bb

ake care not to damage the O-ring at the end of the T regulator.

70-04-M171EN

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11

5.3 REMOVAL OF FLOW DIVIDER CONTROL SUBASSEMBLY

bb

NOTE: There is no need to remove the control block from the machine for this operation. Machine stopped: - Place all the actuators of the machine connected to the control block in the rest position. - Release stored pressures by moving all the distribution slides. NOTE: - Fit a vacuum pump to the fluid tank in order to limit any oil leaks during this operation. - Catch any oil leaks in an appropriate recipient. - Unscrew the plug (12 mm Allen key). - Remove the stop and the spring. Reassembly: tightening torque: see section 6. Selector kit Ball O-rings

- Replace any defective parts. - Replace the O-rings on the plugs. -R eassembly is the reverse of removal.

70

Sealing kit

Piston kit

5.4 FLUSHING VALVE REMOVAL NOTE: There is no need to remove the control block from the machine for this operation.

bb

Machine stopped: - Place all the actuators of the machine connected to the control block in the rest position. -R elease stored pressures by moving all the distribution slides.

(10/09/2012)

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12


Stopper O-ring

Spring Shims Piston T3

- On the output element, unscrew the flushing valve plug (12 mm Allen key). Reassembly: - Replace the plug O-ring. - Tightening torque: see section 6. Remove:

- the shim, - the spring, - the ring, - the piston.

- Reassembly is the reverse of removal.

5.5 SLIDE REMOVAL NOTE: There is no need to remove the control block from the machine for this operation.

bb

70

Machine stopped: - Place all the actuators of the machine connected to the control block in the rest position. -R elease stored pressures by moving all the distribution slides. NOTE: - Fit a vacuum pump to the fluid tank in order to limit any oil leaks during this operation. - Catch any oil leaks in an appropriate recipient. - Remove the cover fixing screws (5 mm Allen key). Reassembly: tightening torque: see section 6. - Remove the cup and spring. - Remove the O-ring from the cover. - Extract the slide from the distribution element.

bb

Reassembly: grease new seals when fitting. Slide fitting direction.

70-04-M171EN

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13

5.6 CONTROL BLOCK REMOVAL/REASSEMBLY Preliminary operations: - Remove the control block from the machine (see section 4). - Remove the 3 assembly nuts (13 mm socket). Reassembly: tightening torque: see section 6.

3

2 1

- Remove the output element (1). - S eparate the distribution elements (2) from the inlet element (3). - Replace the O-rings between the distribution elements, the inlet element and the output element. - If the inlet element is to be replaced, remove the tie rods. - Reassembly is the reverse of removal. Ensure that tie rods are torqued to the correct torque. - B efore commencing, ensure that mating faces on the elements are clean.

70

Individual pressure compensator removal - Unscrew the plug (7 mm Allen key). - Remove the compensator piston. - Clean the piston's nozzle with compressed air. - Check the condition of the bore. Reassembly: replace the O-ring and the anti-extrusion ring in the plug.

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14

HYDRAULIC CONTROL AND ADJUSTMENT Disassembly of a load check valve - Unscrew the plug (5 mm Allen key). - Remove the spring and the poppet. - Visually inspect the parts for condition. - If necessary, replace any defective parts.

- Tightening torque: see section 6.

Reassembly: - Replace the plug O-ring.

6 - SPECIFIC TIGHTENING TORQUE

70

Torques given in Nm ± 10%. Item torque Nm Inlet element: 1 LS relief valve: 45 2 LS flow regulator: 3,5 3 DLS/LS Selector: 20 4 Priority valve seat: 10 5 Priority valve plug: 100 Distribution element: 6 One way valve: 30 to 35 7 Balance plug: 60 8 Hydraulic control unit: 10 9 Return spring housing: 10 10 EMS module control piston: 10 EMS module: 15 11 Output element: 12 Flushing valve plug: 100 13 Tie-bolt nuts: 42

70-04-M171EN

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15

100 N.m

12

42 N.m T3

13 9

7

30-35 N.m

60 N.m 6

10 N.m 5

8

30-35 N.m 10

100 N.m 20 N.m

11

5 N.m 1 N.m 5 N.m

10 N.m Loctite 542

3 4

10 N.m

1 45 N.m

20 N.m

20 N.m Loctite 542 45 N.m ± 6 N.m

3,5 N.m ± 0,5 N.m 2

(10/09/2012)

8 - Hydraulic control unit 9 - Return spring housing 10 - EMS module control piston 11 - EMS module 12 - Flushing valve plug 13 - Tie-bolt nuts

70

1 - Relief valve 2 - Flow controller 3 - DLS/LS Selector 4 - Priority valve seat 5 - Priority valve plug 6 - One way valve 7 - Balance plug

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16

CASAPPA MVP 60 PUMP ADJUSTMENT Supplementary explanations for the Casappa hydraulic pump: characteristics and specifications. e 7800 -- Hydraulic Electrical characteristics and specifications.

PRESSURE TEST PORT VALUES Delta P1 generated by weak flow passing through the distributor pressure compensator (Item 1). Delta P2 generated by the flow passing through the limiter (Item 2). This delta P2 depends on the distributor Delta P2. The Delta Pls pressure test port must be mounted between the union (Item 3) and the pump (Item 4) so that the Delta P2 value can be taken into account.

Example: Hydraulic control (Setting "b")

Values on diagram for information purposes only.

Delta P1 X

b

B Delta P2

70

b

2

LS

M

D

b B1 A1

D

DLS

P

240b

PLS

Ppompe

M

1

P

223b

240b

Tdd

VS

315b

700mA 223b

14V

17b

S

IPEC

EE

T

LS T

270b T

B

A

190b 280b

T

EI

a

3

Filter Flow limiter 70-04-M171EN

4

(10/09/2012)


17

ENGINE AT IDLE

Maximum setting

Minimum setting

At end of movement

•

IPEC

PLS

Ppump

Twater < 60 °C

600 mA

223 bar

240 bar

Twater > 70 °C

700 mA

206 bar

223 bar

The current at the PEC can reach 900 mA if the engine stalls. The pressure at pump exit will fall to 189 bar.

For 60°C < Twater < 70°C, a slope is taken into account between 600 mA and 700 mA. Current Temp Limit Hot Zone Current Min Hot Zone = Current Min Low Speed

Current Min Cold Zone

HOT ZONE

70

COLD ZONE

Temp Limit Cold Zone

Engine Coolant Temperature [°C]

Why is the pressure greater when cold? When cold we have less effective performance; we need to have more pressure to raise loads.

MAXIMUM ENGINE SPEED IPEC

PLS

Ppump

Minimum current

300 mA

271 bar

288 bar maximum

Maximum current

800 mA

200 bar

217 bar

If the engine stalls, the pump will regulate the pressure is such a way as to lower it to 217 bar.

(10/09/2012)

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18


DELTA adjustment PRECISE CHECK The Delta P must be measured as the difference between the discharge pressure at the pump and the LS pressure coming from the distributor. The pressure test ports must be assembled close to the pump (B and X).

Delta P X

B

D

LS

M

b B1 A1

D

DLS

P M

P Tdd

VS LS

S T

EE

T

T

B

A

T

EI a

70

P D

Flow pressure LS pressure Casappa hydraulic pump Distributor

“LS (X) pressure” take-off

“Flow pressure (B)” take-off

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19

70

The most precise measurements are achieved with a slow operation, unladen at medium/high speed (e.g. slowly elevating the boom with no load).

Acceptable Delta P range: 16,5 - 19,5 bar

(10/09/2012)

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20

HYDRAULIC CONTROL AND ADJUSTMENT QUICK CHECK To carry out a quick check of flow regulator adjustment or if it is not possible to assemble the pressure test ports directly on the pump, a less precise measurement can be taken when the machine is at standby (no machine movements) at minimum engine revolutions. In these conditions, the pressure supplied can be more simply measured at the pressure test port on the distributor block. PP

Pressure test port

X

D

B

LS

M

b B1 A1

D

DLS

P

P

M

Tdd

VS LS

S T

EE

T

T

B

A

T

EI a

70

Acceptable Delta P range in standby condition: 17 - 20 bar

MODIFYING THE DELTA P To modify the LS regulation setting: • Unscrew the LS regulator cap (1) • Loosen the LS regulator locknut (2)

bb

Take care with the washer (3); it can be damaged in the course of this operation

• Tighten/loosen the LS regulation screw (4) to increase/reduce the Delta P adjustment. • When the Delta P measured is within the acceptable range, tighten the LS regulator locknut (2). • Re-affix the LS regulator cap (1). ¼ turn (90°) on the flow regulator screw equates to approximately 3 bar change on the flow regulator.

1

4

3

70-04-M171EN

2

(10/09/2012)


CASAPPA HYDRAULIC PUMP TIGHTENING TORQUES

21

30 Nm

35 Nm

20 Nm 10 Nm

30 Nm

35 Nm 30 Nm 30 Nm

15 Nm

70

u

Detail A

30 Nm

Detail A

50 Nm

130 Nm

25 Nm

2 Nm

15 Nm

(10/09/2012)

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22


50 Nm

70

15 Nm

A-A

AIR BLEED PROCEDURE 0,7-1 Nm Bleed screw

If necessary, residual air in the valve can be bled using the air bleed valve (cross-section AA). The procedure is as follows:

15 Nm

70-04-M171EN

• Loosen the air bleed screw in the adjustment screw by 2 turns. • Pressurize the circuit to force air out. Repeat several times if necessary. • Tighten the air bleed screw, applying a tightening torque of 0,7-1 Nm.

(10/09/2012)

HYDRAULIC SPECIFIC TOOLING

pages BASIC MANOMETER SET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

70

DIGITAL MANOMETER SET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

(20/05/2014)

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BASIC MANOMETER SET

This box contains all the components required for measuring pressure on all Manitou products.

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2

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Basis gauge kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .549671 Consisting of: 1 2 3 4 5 6 7 8

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1 gauge 1/9 bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 gauge 0/40 bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 gauge 0/60 bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 gauge 0/400 bar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 gauge 0/600 bar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 standard hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 hoses for telehandler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 gauge tap connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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549882 549883 549884 549885 549886 549887 549888 549889

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DIGITAL MANOMETER SET FUNCTIONS: • Gauge function: the display allows the following combinations: ⇒ The upstream pressure temperature at +/- 2°C ⇒ The upstream temperature P1 with its mini and maxi (700 bar in class 0.1) ⇒ Downstream pressure P2 with its min. and max. (700 bar in class 0.1) ⇒ Differential pressure ΔP=P1-P • Hold function: The user can freeze the screen display at any time to take notes • Unit function: The user can change the unit of measurement at any time (bar, psi, kPa, mCe). • Function Tare: Enables offset to zero • Leak test function: Can measure a pressure variation over a specified time

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• Record function: A maximum of 16000 readings can be recorded. The sampling period can be configured. • Reset function: The 2 sensors are reset to zero

Digital Manometer kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .662187 Consisting of: 1 2 3 4

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1 digital gauge ΔP HP 700 bar 1 measurement hose DN2 1215/1620, L = 1,5m, 630 bar 2 measurement hoses DN2 1620/1620, L = 1,5m, 630 bar 2 gauge adaptors 1620

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Manitou Hydraulic System

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