WIRE NUMBER IDENTIFICATION CODES ELECTRICAL SCHEMATIC EXAMPLE
HYDRAULIC SCHEMATIC EXAMPLE
CURRENT STANDARD
CURRENT STANDARD
DR5
HARNESS IDENTIFICATION CODE THIS EXAMPLE INDICATES WIRE 135 IN HARNESS “AG”
48
PSA1
WIRE
T-OUT(1)
CIRCUIT NUMBER IDENTIFICATION
325-AG135 PK-14
DRG
CIRCUIT NUMBER IDENTIFICATION
DR2
WIRE COLOR
WIRE GAUGE
325-PK
PREVIOUS STANDARD WIRE
WIRE COLOR
B
325-PK-14
PAC
f04860
WIRE COLOR
PILOT OIL MANIFOLD
CIRCUIT NUMBER IDENTIFICATION
41
WIRE GAUGE
A
(EXAMPLE VALVE)
16 Page,
TRANSDUCER (FLUID)
(Dimensions: 34 inches x 24 inches)
M
KENR5084-01
MAIN CONTROL VALVE
4
1
2
3
10
56
55 8 PG
4
7 DR
9 MU
5
6 Pp3
8
T
T
B
7
Pp3
A
A
B
B
A
9 10
11
12
35
5
BP2 SPi
2
6
3
54
50
49
57
59
58
53
1
BPi
SP2
SDr
BDr
BP3
SP3 BR5 SP1 T
AL4 aL4
ST R2
BL3
BL2
aL3
AL3
aL2
(IN)
(RAISE)
Di4
BL1
AL2
14
15
aR1
AL1
BR1
AR1
aR2
BR2
AR2
BR3
aR3
AR3
(CLOSE)
(REV)
AR4
Pi1
aR4 (LOWER)
AR5
BT
BP1 BR4
aR5 R3
R1
(REV)
(L)
13
Pi4
aL1
17
16
19
18
21
20
22
24
23
MAIN CONNECTOR LINE
(IN)
PILOT LINE DRAIN LINE
36
PB2
DB2 DB1
37
DB6
COMPONENTS
PD6
39
PB1
25
38
Item No.
27 26
28
30
29
A1
B1
A2
B2
A3
B3
A4
B4
A5
C B5
A6
B6
A7
B7
UP
DOWN
OPEN
CLOSE
L
R
IN
OUT
(Dimensions: 34 inches x 24 inches)
16 Page,
RENR3819-07
31
HL
bL4
Pi2
Di2
(R)
(OUT) bL3
Pi3
Di3
(FWD)
(FWD) DST
bL1
bL2
PL
32
(RAISE) bR4
(OPEN)
PR
bR2
bR1
34
33
bR3
(OUT) Di1
bR5
A8
B8
A2
B1
A1
44
DR
M2
FR
41
40
U
42
P2
P1
51
A
P2
46
47
Pi1
Pi2
NO1 (TRAVEL)
(SW PARKING)
PSA1
Pn2
49
P1
A2
PsM2 S3
PSA2 PAC
G4
43
50 Dr2
S1
B
D DR1
DR2 DR3 DR4 DR5
DR6
PIN TOUT1
Line Relief Valve (Bucket Cylinder Rod End)
32
Line Relief Valve (Bucket Cylinder Head End)
3
Right Travel Motor
33
Boom Regeneration Valve
4
Stick Cylinder
34
Line Relief Valve (Boom Cylinder Rod End)
5
Travel Brake Valve (Left)
35
Pilot Control Valve (Travel)
6
Travel Brake Valve (Right)
36
Pressure Switch
7
Bucket Cylinder
37
Pressure Switch
8
Boom Cylinder
38
Pilot Control Valve (Swing and Stick)
9
Swivel
39
Pilot Control Valve (Boom and Bucket)
10
Main Control Valve
40
Pressure Switch
11
Stick Drift Reduction Valve
41
Pilot Oil Manifold
12
Boom Drift Reduction Valve
42
Accumulator
13
Boom II Control Valve
43
Reducing Valve (Boom/Swing Priority Mode)
14
Stick I Control Valve
44
Pressure Sensor (Left Pump)
15
Swing Control Valve
45
Travel Speed Solenoid Valve
16
Left Travel Control Valve
46
Swing Parking Brake Solenoid Valve
17
Straight Travel Control Solenoid
47
Valve
18
Main Relief Valve
48
Solenoid Valve (Hydraulic Activation)
19
Right Travel Control Valve
49
Left Pump
20
Attachment Control Valve
50
Pilot Pump
21
Bucket Control Valve
51
Slow Return Check Valve
22
Boom I Control Valve
52
Bypass Check Valve
23
Stick II Control Valve
53
Return Filter
24
HR
Right Pump
Negative Flow Control Relief Valve
55
Oil Cooler
G3
26
Stick Regeneration Valve
56
Hydraulic Tank
PsM1
27
Stick Unloading Valve
57
Case Drain Filter
28
Line Relief Valve (Stick Cylinder Head End)
58
Pilot Relief Valve
29
Variable Swing Priority Valve
59
Pilot Filter
30
Straight Travel Control Valve
60
Pressure Sensor (Right Pump)
A1
E
31
Left Travel Motor
54
Ps1
53 F
Swing Motor
2
Negative Flow Control Relief Valve
C
G
1
25
Dr1
52
Component
Ps2
48 NO3 (LOCK)
Item No.
B2 RR
45
G2
Component
54
TOUT2 IN
OUT
Pi A3
55
Pn1
T
M1 G1
Pm
f04859
56
THIS SCHEMATIC IS FOR THE 320C EXCAVATOR 57
58
59
60
MEDIA NUMBER: RENR3819-07 PART NUMBER: 158-8176 Components are shown installed on a fully operable machine. Refer to the appropriate Service Manual for Troubleshooting, Specifications.
