Harness And Wire Electrical Schematic Symbols
RENR6419-03 May 2007
1 2 Engine & Platform Off Machine Switch Specification Part No.
ComponentIdentifiers(CID¹) ModuleIdentifier(MID²) AuxiliaryHydraulicControl (MID No. 106) CID
Function
Deactuate
Contact Positi on
206.8kPaMIN (30psiMIN)
NormallyOpen
Bac kupPre p Pre ss ure r e Sw itc h
517.0+41.4,- 68.9kPa (75.0+6.0,- 10.0psi)
3861+4 . 1.4,-68.9kPa (56.0+6.0,- 10.0psi)
NormallyOpen
H ighFlow Pres sure r e Sw itc h
375.9+37.9,- 58.6kPa (54.5+5.5, -8.5psi)
263kPaMIN (38.1psiMIN)
NormallyClosed
102±3°C (215.6±5.4°F)
90°CMIN (194°FMIN)
NormallyOpen
H yd ra u lic FilterBy ulic r By pas sSwitch
192 -0 8 36 836 224 -0 7 44 744 236 -1 8 72 872
H yd ra u lic OilTemperatureSw itch ulic
Component
0070
Engine & Platform Component Location
Actuate 275.8to303.4kPa (4 0to44 psi)
134 -0 4 04 404
Pak r i ng B r ak e S wtic h
0 16 8
V ol a t ge F au tl
0 5 98
T wo S pe e d M o t or S ol en oi d
1 1 80
A u xi lai r y Hy d a r uilc S ol e no i d # 1
1 1 81
A u xi lai r y Hy d a r uilc S ol e no i d # 2
1 1 84
A u xi lai r y Hy d a r uilc S ol e no i d Su p pyl
1 18 7
C on tni u ou s Fl ow S wi ct h
1 1 88
O p er a o t r I ne t rol c k Ov e rr i de S w ti c h
1 1 89
A u xi lai r y Hy d ar u il c s Le v er
1 19 0
Am r B ar / S ea t Sw ti ch
1694
T w o Sp e e d Mo t o r So l en odi S u p pl y
1 6 95
T wo S pe e d S w ti ch
1931
H i gh P r e s u e r / H i g h Fol w S oel n oi d
1935
Auxil iaryHydraulicFlowSelectorSwitch
1939
A u xi lai r y Hy d a r uilc H gi h F l ow S u p pl y
Component Alarm - Backup Alter nator ( A) Alter nator ( B)
Component Descri ption
Solenoid:
Qui ck Coupl er A1 & A2 ContinuousFlow(HighFlowXPS)
6.36 ± 0.4
2.2 ±0.2
195- 7 900
Solenoid:
C +&C -(H ig hFlow XP S) S) ImplementPilot Parking Brake Transmission
10± 0.5
D etent Valve
9.4
E-12 G-15
44
D- 12
45
Rel ay - Main Power D ( B)
G-15
44
Rel ay - Start (A)
D-7
45
13
Breaker - Roading (A)
B- 9
45
Rel ay - Start (B)
I-10
45
Breaker -R -Roading B ()
H-12
44
Resi stor -D -DMML Alternator (A)
C-7
14
C- 2
19
Sender - Fuel Level (A)
F-12
12
Control -A -Auxiliary Hydraulic Contr lo
F-1
47
Sender -F -Fuel Level (B)
H- 5 1
46
Control -O -Operator nI terlock
H- 1
48
Socket -P -Power +12 V olts
F -5
6
Di ode - Block (A)
A- 7
15
Solenoid - ( C-) High Flow (A)
E-5
8
D-15
11
Solenoid - ( C-) High Flow (B)
C-5
8
G-5
6
G-7
Glow Pl ugs ( A)
A- 7
Glow Pl ugs ( B)
Solenoid - ( C+) High Fl ow ( A)
6
E-5
Solenoid -( C+) High Flow B ()
15
D-5
8 8
Solenoid - A1
E-7
G-10
15
Solenoid - A2
E-7
8
Ground - Engine Stud A ()
B- 7
49
Solenoid - Boost Flow (A)
D-5
8
Ground -E -Engine Stud (B)
H-10
49
Solenoid - Col dStar P t ump (B)
G-10
14
I-15
21
D- 4
Solenoid -Continuous Flow A ()
39
D-5
Solenoid -Continuous Flow B ()
C-5
So el o n di - Det n e tVa vl e( e( 4 2 8,2 8 6 ,Hi gh Fl ow)
8
I 1-5
Ground -U -Upper Fr Frame Stud (A)
C-12
Solenoid -F -F e ul Shutdown A ()
B-7
Ground -U -Upper Fr Frame Stud (B)
F-15
11
Solenoid -F -F e ul Shutdown B ()
H- 0 1
14
I1 -
2 0
S ol en oi dd- I m p l Pi ol t( 24 8, 26 8, Hi gh F ol w )
A5 -
1 9
C-2
19
D-3
39
51
H- 2
20
D- 1
Solenoid - m I pl ement Pilot
19
Solenoid - Parki g n Br kae
B 5-
8
G or n u d- Up Upp re Fr Fr m a e
H an dl e- 1 S W- L H
21
8
1 9 33
Ha ndl e- 2 S W- RH
D- 2
19
So el o n di - Qu ci kCo upl er ( A)
B 1- 2
11
H an dl e- 3 S W/ R o l el r- R H
D2 -
1 9
S ol en oi d- Q u i ck C o u pl er ( B)
E1 - 5
5 3
20
Solenoid -T -Transmission
H-3
20
Handle - 5 SW - LH
I- 2
1940
Auxil iaryHydraulicHighFlowDiverterSolenoid
216- 0610
Solenoid:
1942
H i gh P r e s u e r T o ol D e t ec toi n S wtic h
22 -4 7 2 8
S n e e d :r
F uel (2 7 8 / 267 )
Empty:240- 245 Full:28-3 3
22 -4 85 5 4
S n e e d :r
F uel (2 7 6 / 277 )
Empty:240- 245 Full:28-3 3
2 31 -2 10 5
S en de r:
F ue l 2 ( 16 B / 22 6 / 2 3 2B / 2 42 )
Empty:240- 250 Full:28-3 3
S n e e d :r
F uel (2 7 4 / 257 )
Empty:240- 250 Full:28-3 3
Motor - Fuel Prime Pump (B)
23 -1 21 6 0
Motor - Star ter (A)
A- 9
2 24 -8 54 4
S en de r:
F ue l 2 ( 36 / 2 46 / 2 52 / 2 62 / 2 48 / 2 68 )
Empty:240- 250 Full:28-3 3
Motor -S -Star ter B ()
G-12
50
Switch -Air Filter nI di cator (A (A)
B-12
45
I- 8
25
Switch -Air Filter nI di cator B ()
E-15
44
238-9397
Resi stor:
¹TheCIDisadiagnosticcodethatindicateswhichcir cuitisfaulty. ²The MIDisa diagnosticcodethat indicateswhichelectroniccontrol module
D MML ALT
120.0 ± 6.0
Horn - For war d (A)
F-12
Horn - For war d (B)
Solenoid -V -Valve Gr pDVTR XR XRMTL (A)
1 8
B1 - 4
1 7
Solenoid-ValveGrp DVTRXRXRMTL(B) 268HighFlow
C-15
E- 15
Motor - Water Pump Relay - C ( -) Fuse Block 2
D es cr pi t oi n
Wire Number
Wi e r C ol o r
608 6 10
Power Circuits Bat + ( ) /M /Main Breaker
RD
RoadingBreake r/StopLampRelay/ r/StopLampRelay/ Roading Lamp SW / Stop Pressure SW / Flasher
1 05
RD
109
RD
11 0
GN
K ey S at rt S W/ A U X B el ed OffS W AltOutput(+)/ StartRelay/ColdStartRelay /RoadingBreaker/MainPowerRelayA-D PW R Fu Fu le Sh Sh ut Of f
F MI No .
F ai ul re Des cr pi tio n
0
D aa t v a ldi b u t a b ov e n o m r a l o pe r at i on a l r an g e .
1
Datavalidbutbelownormaloper ationalrange.
2
Dataerratic,intermittent,orincorrect.
YL BU
123
WH
P ow re Ba Ba ck up Al ar m Misc. Power HighFlowSW/FuelLevelInd / ActionLamp
1 24
RD
H ea et r & H V AC K ye S WR el ay
F780
PK
1 25 1 26 127
RD PK OR
H VA CC on de ns er F an Re al y O pe a r ot r nI et rl oc k C o nt ro l Col dS at tr S W
G78 9 H 74 6 H 74 7
PU YL BR
M ai n P w o er R eal y A- D / M ca hni e Se c rui yt S y st e m S ol en oi d De ma nd F an ( +) S ol en oi d De ma nd F an ( )-
1 28 14 3 15 3
PK YL BU
A UX H yd Co nt o r l/A UXB l ee d O f f SW Fo r nt Wo kr ni gL m a pS W Ra e rW ro ki ng La La m p SW
14 15 4 10 8
GN BU GN
B ea co n S W/Ba e co n S o ck et P ow re So So ck et + 12 Vo tl s J um e p rD m e an dF an
H 75 8 H 75 9 H 79 1 H 79 2 J 76 4 M 73 2
BR OR GN BR BR OR
W or k T o l ( C+ ) R lea y / C ( +) S oel n iod W or k T o l ( C - ) R el a y / C ( - ) So l n e odi RHH a nd l e W K T LC ( +) S W / R lea y C ( +) C ol i R H Ha nd l e W KTLC 1 S W / Re l ay ( C )- C ol i Tm e pS n e so rG or un d S t rat R lea y / Ma c ihn e Se cu rti y S ys t m e C on t or l
200 2 01 202
B K BK BK
GroundCircuits Mai nChas si s O p reaot r I nt e lro ck C on t or l / P ar k B a r keS W Armrest SW
M 73 3 R 73 2 X3 74
PK BR GY
T oo l Co n e n cot r / W rok T o l R lea y C ( +/ C- ) O ut p tu H yd a r ul ci T m e p. S n e so r L O C Co e d IP, Bi t 2
8 77 F86 4
YL PU
C ol d St ar t Re al y / G l ow P ul gs R H Ac toi n La mp G r ou p / Ma c ihn e Se c rui yt S y st em
G88 4 94 4 94 5 961
GN O R BR BR
R H Ac toi n La mp G r ou p / Ma c ihn e Se c rui yt S y st em Cat Dat aLi kn (+) Cat Dat aLi kn (- ) OVRD Switch OperatorInterlockCont/TransmissionSole noid/ noid/ Implemen tPilotSolenoid tPilotSolenoid
AUXHydControl/HighFlowSW ImplementLocko utSW/LH& RHHandle/ utSW/LH& MachineSecuritySystem/DetentValve
3 04
WH
306
GN
3 07
OR
S at tr er R el ay / S at tr er OperatorInterlockContro l/ l/ MachineSecuritySystem
308
YL
KeyStartSW/Alternator/ ResDMMLAlt/ MachineSecuritySystemCon trol trol
3 21 3 22
BR GY
B a ck Up Pr e s u er S W/ B ca k U p Al a m r L H Ha nd l e Fo r w ardH o r n SW / H or n J um pe r
327 A39 0
PK GY
F e ul Pu m p PRM F u leS h ut d w o n So l n e odi / D i d o e Bl o ck S t rat R el a y / M a c ihn e Se c rui yt S y st em C on t M ai n Po we r R e al y C o li A - D MonitoringCircuits Alternator(R)Term./HourMeter/ MachineSecuritySystemCon trol trol
Abnorm alfrequency,pulsewidth,orperiod e width,orperiod. A bn or ma l up da t e.
10
A b no r ma l r aet o f c h an g e .
11
F aliu e r m o d e no t i d en t fi i ab l e.
12
B a d d ev i ce o r c o mp o n en t .
A36 4 A 34 7
BU GN
13
O u t o f ca lbi r at i on .
14
P a ar m et e r f ai l ur e s.
403
GN
15
P a ar m et e r f ai l ur e s.
4 04
YL
16
P a ar m et e r n ot a v alia bl e .
17
M o du l e n ot r e sp o n di n g.
18
S e ns o r su p pl y f a ul t .
19
C on dtio i n no t me t.
20
P a ar m et e r f ai l ur e s.
¹TheFMIisadiagnos t iccodethatindi ticcodethatindi cateswhattypeoffailurehasoccur red.
KeyS t a trS W / O pe r tao rnI t er l oc k C n o t or l
L H Ac toi n La mp G p / Hy d Ol iT e m p er aut r e S W
779
WH
780 7 81
PU PK
H yd Q uci k Co u lpe r SW / Q uci k C u o pl e r So l V lav e LHH a nd el / 2 Sp e d T r i g er S W
7 82 A5 71 A 75 2
GY YL BR
LHH a nd el / Wo kr T o l C1 S W Pw o re To To lo s S w ti ch P ow er T o los S wi t ch / W at e r Pu mp
F76
WH
L oc k ou t Re l ay / D et e tnV avl e / O tpr I nt e lro ck C o tn OperatorInterlockCont rol/AUXHydControl/ ParkBrakeSW
975
WH
A 95 8 E 91 7
WH WH
E918
GN
F95 0
YL
G99 6 G982 G 98 3
YL PK GN
G984 G985
PK PU
E- 6
YL OR WH
R H Ac toi n La mp I net rol c k O v er r i e d / A UX H yd C on t L O C Co de P I , Bi Bi t0 L O C Co de P I , Bi Bi t1
BU
R C 2 Va l ev G r ou p So l en oi d / Doi d e
M 90 7 N957 N960 N7 99
GY PK OR GN
R C 1 Va l ev G r ou p So l en oi d / Doi d e RXD -C -COMM #1 #1 T X D -C -COMM #1 #1 S gi na G l N D - CO M M # 1
P 97 8
GN
A 1 So l en oi d / A U X H yd r u a l ci C on t or l
R H Ac t oi n La mp G P / Al t er n at or / R e s DM ML A l t S ot p P r es su er S W1 T o l Co n ec ot r / Ju mp er C ol d Sat r t Pu mp / C ol d Sat r t Th e m r o SW TransmissionSolen oid/OperatorInterlockControl oid/OperatorInterlockControl
5 00
BR
AccessoryCircuits W i pe r W a s he r SW / Fr o tn Wpi er M ot o r
M 90 6
P 97 9
YL
P 98 0
OR
P981
PU
A 2 So l en oi d / A U X H yd r u a lci C on t or l F l ow C on t or l S lo/ A U X H y dr a ul i c Co nt r ol TwoSpeedSoleno id/AUXHydraulicControl/ id/AUXHydraulicControl/ HighFlowRelay/RHActionLamp
5 01
GN
W i pe r W a s he r SW / Fr o tn W pi er M ot o r
5 06 5 13
PU OR
W i pe rW as h re SW /W as h re B totel A/CC o mp r es s or R el a y Ou t pu t / A/ C Co mp S ol
P 98 2
BU
L H Ha n lde 2 S e p e dT rgi ge r S W / A U X Hy d C n o t or l
P 98 3
GN
Hih g F l ow S W / AU X Hy d ar ui lc C n o t or l
5 14 5 36
PU WH
A/CC one d n es r F an M ot o r Re l ya O upt ut / F a ns T ur n Si gn al S W H / az ar d SW
P 98 4 P 98 6
YL PU
W or k T o l R lea y C ( +/ C- ) O ut pu t / A U X H yd C on t RHH a nd l e W orkT oolA 2 S W / AU X Hy d C n ot
T ur n Si gn al S W H / az ar d SW / F al sh er
P 98 7 P 98 8
GN OR
5 37
GN
6
Switch -Engine O il Pressur e B ()
45
Swi tch -High Flow (248,268)
H- 10
14 19
45 11
Swi tch -H -Hydrauli c Filter Bypass B ()
F-15
54
7
Sw ti ch - H y dr aul ci Oi lT lTem p( A)
F 1- 2
5 1
44
Switch -Hydraul ic Oil Temp B ()
I-15
51
B- 6 E- 12
Relay -Main Power A( B)
G-15
44
Swi cth -H -Hydrauli cFi tler Bypass (A)
A-4
I-10 D-15
Re al y- Lo Loc ko ut (2 48, 6 2 8,B o st Fl Fl w o ) Relay -Main Power A( A)
D- 2 1
13
236B: HEN1-6749
247B: MTL1-5074
257B: SLK1-7299
277B: MDH1-UP
226B: MJH1-10574
236B2: HEN6750-UP
247B2: MTL5075-UP
257B2: SLK7300-UP
287B: ZSA1-UP
226B2: MJH10575-UP
242B: BXM1-4224
248B: SCL1-UP
262B: PDT1-UP
232B: SCH1-2474
242B2: BXM4225-UP
252B: SCP1-4599
267B: CYC1-UP
Pin or Socket Number
W ri eG au ge
Ground Connection
9X-1123
Component Part Number
Plug
2
200-L32 BK-14
Electrical Schematic Symbols And Definitions FUSE- Acomponent in an electricalcircuit that willopen the circuit if too much current flowsthrough it. REEDSWITCH- Aswitch whose contacts are controlled by a magnet. A magnet closes the contacts of a normallyopen reed switch; it opens the contactsof a normallyclosed reed switch. SENDER- Acomponent that is used with a temperature or pressure gauge. The sender measuresthe temperature or pressure. Its resistance changesto give an indication to the gauge of the temperature or pressure.
T
RELAY(Magnetic Switch) - Arelay is an electricalcomponent that is activated by electricity. It hasa coil that makes an electromagnet when current flows through it. The electromagnet can open or close the switch part of the relay. CIRCUIT BREAKER(C/B) - Acomponent in an electricalcircuit that willopen the circuit if too much current flows through it. This does not destroythe circuit breaker and it can be reset to become part of the circuit again. SOLENOID- Asolenoid is an electricalcomponent that is activated by electricity. It has a coilthat makes an electromagnet when current flowsthrough it. The electromagnet can open or close a valve or move a piece of metal that can do work.
Volume 1 of 2: ENGINE AND PLATFORM ©2007 Caterpillar AllRights Reserved
Printed in U.S.A.
Schematic Location
Machine Location
CONN 1
B-1 2 , E-14
56
CONN 2
B-1 4 , B-15
18
CONN 3
C-13 , C-1 4
ConnectorNumber
18 13
45 54
51
16 14
10
6 55
49 44 12 53
17 11
46
21 25
50 15
48
20
56 33
8
52
7
19
47
C-12 , C-1 4 B-12 , D-14
46
CONN 6
H-14
55
CONN 7
H-14
34
CONN 8
B-1 0 , D-13
34
C-10 , E-13
34
CONN 10
E-1 3
34
CONN 11
C-10 , F-13
CONN 12
51
CONN 14
E-10 , G-13
51
E-10 , G-13
51
CONN 15
E-10 , H-13
51
CONN 16
H-9 , I-13
12
CONN 17
F-12
44
CONN 18
F-12
51
CONN 19
I-12
CONN 20
F-10 C-9
51
CONN 22
G-9
13
I-9
14
C-8
13
PK
RHH a nd el / Wo kr T o l Tr g i ge r SW
WH PU BU
A/CP r e s u er S W / Co mp r se s o r R eal y Co i l T oo l C n o n ce t ro/ S p ar e R lea y Fu s e B l o ck 1 Stp oLam p R el a y / St o p P r e s u er S W 1
P 99 1
PK
P 99 3
OR
L H Ha n lde C n o t Fol w SW / A UX H y rda lui c Co nt r ol
P 99 4
BU
RHH a nd l e R o lel r P ow er / A U X H y dr a ul i c Co nt r ol
6 03
PK
LightingCircuits B ea co nS oc ke t B / ea co nS W
604
OR
StopLampRelay/RH&LHStopTailLamp/ SignalLampGroup
P 99 6 P 99 7 R95
GN BR BU
RHH a nd l e R o lel r Sgi n la/ A UX H y rda lui c Co nrto l RHH a nd l e R o lel r G o r un d / AU X Hy d ar ui lc C n o t or l C o al nt T m e p. S en so r
605
YL
TurnSignalSW/LHStopTaillamp/ LHHeadTurnLamp/SignalLampGroup
T91 0 T92 0
YL PK
606
GY
TurnSignalSW/RHStopTaillamp/ RHHeadTurnLamp/SignalLampGroup
Y905 Y 95 2
YL YL
F e rr i et C oi l / M ac hni e S ce u irt y Sy set m Co nt r ol M SS E x ict er C ol i/ M a ch i e n S e uc rti y S ys t m e C on t HighFlowRelay/HighFlowSolenoid D em an d Fa n S p e d Se ns or
TOOL
CONN 27
CONN 31
15 50 10
13 11
Level Symbol
Flow Symbol
Normally open switch that willclose with an increase of a specific condition (temp-press-etc.).
Normally open switch that is closed due to an applied condition, and willopen again with a specific decrease in that condition.
Normally closed switch that willopen with an increase of a specificcondition.
40 7 7
D-6
Normally closed switch that isopen due to an applied condition, and willclose again with a specificdecrease in that condition.
The circle indicates that the component hasscrewterminals and a wire can be disconnected from it.
39
D-6 , E-6
6
F-5
19
B-5
19
CONN 32 CONN 33
B-4 , D-2
19
No circle indicates that the wire cannot be disconnected from the component.
This indicates that the component has a wire connected to it that is connected to ground.
40
5152
8
12
49 53
56
7
I-7 A-6 , D-4
S ERVICE
Temperature Symbol
Theconnectorsshowninthi t orsshowninthischartareforharnesstoharnessconne s toharnessconnectors. Connectorsthatjoinaharnes t orsthatjoinaharnes s toacomponentaregenerallylocatedatornear stoacomponentaregenera thecomponent.SeetheComponentLocationChart.
20 19
44 45 33 14
I -8
B-6 , D-6
CONN 29
16
45
T
Pressure Symbol
51
CONN 21
CONN 2 6
21
51
D-10 , F-13
CONN 13
CONN 25
54
52
CONN 9
CONN 23
1718
13
CONN 4 CONN 5
CONN 24
25
55
46
This indicates that the component does not have a wire connected to ground. It is grounded bybeing fastened to the machine.
7 6
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47 48
A UX B l e d OffS W / AU X Hy d ar ul i c Co nt r ol L oc k ou t Re l ay / I M PP i ol t S lo/ O prt I net rol c k Co nt
5 49 5 67 A51 7 C 57 6
Electrical Schematic Symbols And Definitions
Engine & Platform Connector Location
40
CONN 3 0
R H Ac toi n La mp G P / F e u l L ev e lnI d / F e u l S en de r
YL
33
D- 7
14
216B2: RLL6800-UP
CONN 28
H yd Q uci k Co u lpe r SW / Q uci k Co u lpe r So l en oi d C ol d St ar t R e al y / C o dl S at rt S W A 1 & A2 S ol e o n i d / AU X Hy d ar ul i c Co nt r ol T wo S pe ed S oel no i d / A U X Hy d ar ul i c Co nrto l
M 90 1 M0 94 M0 95
PK
3 3
B-7
268B: LBA1-UP
SeatSW/OperatorInterlockControl/ AUXHydraulicContro l
BU WH OR GN
LHActionLampGp/AUXBleedoffSW/ EngineOilPressureSW
BU PK GN
1 4
H- 10
252B2: SCP4600-UP
Am r e r st SW S / ea tS W ArmrestSW/OperatorInterlockControl/ AUXHydraulicContro l
K 92 7 L 98 7 L98 9 L99
L H Ac toi n La mp G p / E g n i ne C oo l Te mp S W L H Ac toi n La mp G p / H dy r au lci F i tl e r B y p sa s S W R H Ac toi n La mp G P / I m plm e en t L co k ou t S W R H Ac toi n La mp G P / Ai r F itle rnI dci aot r
BU
B 7-
Sw ti ch - Eng ni eCo ol n a T te m p re at ur e( B) Switch -Engine O il Pressur e A ()
Implemen tLockoutSW/OperatorInterlockCont/ tLockoutSW/OperatorInterlockCont/ AUXHydraulicContro l A ut o L ve eel r S W / V a l ve D VT R AR C MT L 24 8 HF
GY
4 47
Switch -Cold Start Thermo Temp B () Sw ti ch - E ng ni eCo ol n a T te m p re at ur e( A)
6
G-10
20
6 6 6
P ar k B a r keS o l / O pe r at o rnI t rel oc k C n o t or l Implemen tLockoutSW/AUXHydControl tLockoutSW/AUXHydControl
PU OR YL BR
C 46 0 G 46 5 H416
H-3
H- 8 H- 8 G 8G-8
O pe r at o rnI t rel oc k C n o t / P ar k B a r ke S oel no i d I mp e l me nt L oc ko ut S W
4 06 4 36 4 39 4 40
C5 47
44
246B: PAT1-UP
H yd Q uci k Co u lpe r SW / Q uci k C u o pl e r So l V lav e
405
C 44 4
45
232B2: SCH2475-UP
W ri eC ol or
Circuit Identification Number
O pe r at o rnI t rel oc k C n o t or l / A ct i on L am p Gr o up O pe r at o rnI t rel oc k C n o t or l / A ct i on L am p Gr o up ControlCircuits
10 2 122
C u r e nt b e l ow n o r ma l o r o pe n c ri c ui t . C u r e nt a b o ve n o r ma l o r g or u n de d c ri c ui t .
GN BU PU
P ow re Wi pe rWa sh er Power Radio
V otla g e ab o ve n o r ma l o r s ho r e t d h i gh .
Mechanicalsystemnotresp s temnotrespondingproperly .
619 674 676
GY PK
BasicMachineCircuits
C-9 H-12
216B: RLL1-6799
Socket
Single Wire Connector
Part Number For Connector Recepticle
1
325-AG135 PK-14 Pin
L-C12 3E-5179
RHStopTailLamp/RHHeadTurnLamp RoadingLampSW/LH&RHHeadTurnLamp
11 8 119
V otla g e be l ow n o r m a l o r s ho r e t dlow .
9
YL
M ai n Po we r R e al y O u pt ut D M ai n Po w erR ea l yO u pt ut A C -
5
8
618
LHH a nd el F or wa rd Ho rn S W QC P LR Au ot Le ve l
3
6
LHStopTailLamp/LHHeadTurnLamp/ SignalLampGroup/LicenseLamp
YL PU
4
7
Pn a el Sw Swi ct hL hL m a sp
RD YL
BK
52
D es cr pi it on Rear Work Lamp SW /Rear LH &RH Fl ods F ro nt W ro k La mp S W/ L H& R HF ol od s
PU BR
14 1 11 7
203
Switch - Backup Pressure
39 52 52
F-15
HarnessConnector Serialization Code: The "C" standsfor "Connector" and the number indicates which connector in the harness. (C1, C2, C3, .....)
AG-C4 111-7898
C-C4 AG-C3 130-6795 130-6795
Skid Steer Loaders: 216B, 216B2, 226B, 226B2, 232B, 232B2, 236B, 236B2, 242B, 242B2, 246B, 248B, 252B, 252B2, 262B, 268B Multi Terrain Loaders: 247B, 247B2, 257B, 257B2, 267B, 277B, 287B Electrical System
Harness Identification Letter(s): (A, B, C, ..., AA, AB, AC, ...)
Part Number for Connector Plug
Lighting Circuits Cont . GN OR
6 14 617
11 12 1
Failure Mode Identifiers (FMI)¹
6
B-12
Harness identification code This example indicates wire 135 in harness "AG".
Sure-Sealconnector: The plug and receptacle contain both pins and sockets.
1 2
(A)=216B/226/232/2 42/2 47/25 7 (B)=236B/246/248/2 52/2 62/26 7/26 8/277 /287
WireDescription
RD
Stud - Power ( B)
Re al y- (C (C1 )F su eB eBl oc k2 k2
Relay -F uel Pump
F-15
Stud - Power ( A)
10
Relay -( C2) Fuse Block 2 Relay - Cold S tart A ()
102
11
G-8
Re al y- (C (C+ C / - )F )F us eB ol ck 2
Relay -C -Cold Start (B)
101
E-6
Solenoid-ValveGrp DVTRARCMTL(B) 248HighFlow
16
C1 - 4
Relay -Boost Flow A ()
Wire W ri e Col or Number
Solenoid - Two Speed ( B)
52 16
C-15
L am pp- S ot p/ T a li - LH LH At at ch me nt L am p- St St op T / ia l -R HA tt ac hm en t
Relay -( -( C +) Fuse Block 2 ¹At roomtemperatureunlessotherwisenoted.
51
H-15
Lamp -S -Signal Gr u op
Lamp - License
Deutsch connector: The plug containsallsockets and the receptacle containsallpins.
Wire, Cable, or Harness Assembly Identification: Includes Harness Identification Letters and Harness Connector Serialization Codes
44 45
Rel ay - Main Power C ( B) Rel ay - Main Power D ( A)
45
Handle - 2 SW - LH
2.2 ± 0.2
G-15
Rel ay - Main Power C ( A)
11
45
45
Handle - 2 SW - RH
T wo Speed
Rel ay - Main Power B (B)
33
Machine Location
E-12
B- 9
Ground -Lower Platform
Resistance (Ohms)¹
Solenoid: Solenoid:
14
A- 8
Schematic Location
H-12
Ground -Lower Fr ame
Engine &Platform Resistor, Senderand Solenoid Specifications
C- 7 I-10 G-11
Component
Breaker - Main ( A)
Fuses - Block 1
185- 2 454
Rel ay - Main Power B (A)
Breaker - Main ( B)
Fuses -Block 2( Work T ools)
233- 7128
16
Batter y ( B)
Diode - Fu Fuel P ump
172- 0970
Machine Location
C-14
Batter y ( A)
Coil - Ferrite Asy.
Part No.
Schematic Location
Title 2 39 0 - 77 2
R 2 7. KW E el ct ri cS t ar ti ng M ot or :
1 43 -0 53 9
A ux liai y r H yd ar ul ci Co Co nt or l sy st em : O pe ar ot rIrI nt erl ock Co Co nt or :l
Hih g F l ow S W / AU X H y d ar ui lc C n o t or l
Machine Harness Connector And Component Locations
Form Number
K 3A A tl er na o t :r
S EN R5 84 1 S EN R3 8 28 R EN R2 89 3 R E N R2 86 4
) s
e 1 h c n i L 4 2 O x V s e c 3 h n i 0 - 9 3 9 : s 1 i n 4 o s 6 n e m i R D ( N e , E g a P R 0 2
Harness And Wire Electrical Schematic Symbols
RENR6419-03 May 2007
1 2
Component Identifiers (CID¹) Module Identifier (MID²) Auxiliary Hydraulic Control (MID No. 106) CID 0070
Attachment & Cab Off Machine Switch Specification Part No.
Function
1 8 4- 1 56 4
S t op P r es s ur e 1 & 2
236 -69 23
A/C R efrigeran tPress rue
Actuate
0 16 8
V ol a t ge F au tl
0 5 98
T wo S pe e d M o t or S ol en oi d
1 1 80
A u xilai r y Hy d a r uilc S ol e no i d # 1
1 1 81
A u xilai r y Hy d a r uilc S ol e no i d # 2
1 1 84
A u xilai r y Hy d a r uilc S ol e no i d Su p pyl
1 18 7
C o ntni u ou s Fl ow S wi ct h
1 1 88
O p er a o t r I ne t rol c k Ov e rr i de S w ti c h
1 1 89
A u xilai r y Hy d a r uilc s Le v er
1 19 0
Am r B ar / S ea t Sw ti ch
1694
T w o Sp e e d Mo t o r So l en o di S u p ply
1 6 95
T wo S pe e d S w ti ch
1931
H i gh P r e s u e r / H i g h Fol w S oel n oi d
1935
Auxil iaryHydraulicFlowSelectorSwitch
1939
A u xilai r y Hy d a r uilc H gi h F l ow S u p ply
1940
Auxil iaryHydraulicHighFlowDiverterSolenoid
1942
H i gh P r e s u e r T o ol D e t ec toi n S wtic h
Contact Position
263 kPa (38.2psi)
NormallyClosed²
275to1750kPa¹ (40to255 psi)
---
NormallyOpen²
Component Pak r i ng B r ak e S wtic h
Attachment & Cab Component Location
Deactuate
375.9+37.9,-58.6kPa (54.5+5.5, -8.5psi)
¹Withincreasingpressure theclosedconditioncan bemaintainedupto 2800kpa(405psi), withdecreasingpressurethecl osedconditioncanbe maintained downto170kpa (25psi). ²Contactpositionat thecontactsofthe harnessconnector.
Schematic Location
Component
Solenoid -Val ve G p R C1
E-1
56
1
Solenoid -Valve G p R C2
E-2
56
C- 5 1
24
Action a Lmp Group -RH NACD) (
Action Lamp Group - RH C ( OSA)
F-9
2
Switch -Armrest N ( ACD)
C-11
24
B eac on An dB eac on S co ke t( C O SA)
D- 13
E-13
36
Sw ti ch - A u ot Lev el er (CO SA )
H- 12
1
B eac on An dB eac on S co ke t( N A C D) Bottle - Washer
E- 9 I-7
36 43
Sw ti ch - A u ot Lev el er (NA C D) Switch -AUX Hydraulic Mode COSA) (
H- 8 F-12
1 1
G-3
21
Sw ti ch - A U XP er s ru eRe ea l se (CO SA)
H- 12
1
1
Switch -AUX Pressur eRelease (NACD)
H- 8
1
H-1
21
Switch -Beacon C ( OSA)
F-12
E-1
56
Switch -Cold Start (COSA)
G-12
F-15
Component Description
Solenoid:
Resistance Ohms)¹ (
Remote Control 1
3.2 ± 0.22
Remote Control 2
4.0 ± 0.28
A /C Compressor
10.5
¹At roomtemperatureunlessotherwisenoted.
Switch - Cold Start (NACD)
G-8
2 1 1
34
Switch -Fan O n/Off/On H ( eater)
G-6
20
H-11
34
Switch -Fan O n/Off/On H ( VAC)
E-6
20
G-13
1
Switch - Front Working Lamp (COSA)
C-12
2
G-9
Indicator -F uel Level (COSA)
1
E-13
I ndi ca or t - Fu el Le vel (NAC D )
Switch - Front Working Lamp (NACD)
2
E- 9
Switch -Hazard C ( OSA)
2
C-8 E-12
2 2
Sw ti ch - H VA CRe rf gi re an P t er s ur e
E 4-
Lamp - Dome (COSA)
E-13
2
Switch -Hydraul ic Lockout C ( OSA)
E-12
2
Lamp - Dome (NACD)
E-9
2
Switch -Hydraulic Lockout D ( oor)
H-5
57
Lamp -Fl od -LH C ( OSA)
I-12
1
Switch -Hydraul ci Lockout (NACD)
E-8
4 3
2
L m a p- Fl o d- LH (NA C D)
I 8-
1
Sw ti ch - H y dr aul ci Qui ck Co p u el r( COS A)
G 1- 2
1
L m a p- F oo l d- R H( C O SA)
B 1- 2
2
Sw ti ch - H y dr aul ci Qui ck Co p u el r( NACD )
G 8-
1
Lamp - Flood - RH (NACD)
B-8
2
Switch - Key Start (COSA)
F-13
1
Lamp - H ead Turn -LH (Atch)
I-1
1
Switch - Key Start NACD) (
F-9
1
Lamp -Head T urn -RH Atch) (
I-1
2
Switch -Mode O ff/On HVAC) (
D-7
20
Lamp -Rear Flood -LH (COSA)
¹TheCIDisadiagnosticcodethatindicateswhichcir cuitisfaulty. ²The MIDisa diagnosticcodethat indicateswhichelectronic control module
34
H-15
Ground -Cab N ( ACD) Hour Meter C ( OSA)
I-15
Lamp -Rear Flood -LH (NACD)
I-11
L m a p- Re ar Fl od - RH (C O SA ) L m a p- Re ar Fl od - RH (NA C D )
3
Switch - Parking Brake ( C OSA)
F-12
1
3
Switch - Parking Brake ( N ACD)
F-8
1
E 1- 5 E 11 -
4 4
S w i ct h- Rea rWo kr ng i a L m p CO ( SA) S w i ct h- R a e rWo kr ng i La m p( N A C D)
C- 12 C- 8
2 2
Motor - C ondenser Fan 1& 2
D-4
23
Switch -Roading Lamps (COSA)
D- 2 1
2
Motor -Dbl Blower Heater) (
G-6
20
Switch -Seat C ( OSA)
C-15
22
Motor -Dbl Blower HVAC) (
E-6
20
Switch - Seat NACD) (
C-11
22
Motor - Front Wi per
I-5
27
Switch - Stop Pressure 1
H-4
55
E-6
20
Switch - Stop P r essure 2
G-4
55
Relay - Condenser Fan
E-6
20
Switch - T ool Power C ( OSA)
H-12
1
Relay -Key Switch H ( eater)
H-6
20
Switch -Tool Power (NACD)
H-8
1
Relay -Key Switch H ( VAC)
F-6
20
Switch - T urn Signal C ( OSA)
D-12
2
Relay - Stop Lamp
H-4
55
Switch - Wiper / Washer
I-5
27
Sol enoi d -HVAC C ompressor Clutch
E-4
9
Thermostat (HVAC)
E-7
20
Relay -Compressor H VAC
WireDescription Wire Number
W ri eC ol or
101
RD
Bat + ( ) /Main Breaker
102
RD
RoadingBreake r/StopLampRelay/ Roading Lamp SW / Stop Pressure SW / Flasher
D es cr pi it on
Wire Number
Wi er Co ol r
608 6 10
GN OR
Rear Work Lamp SW /Rear LH &RH F l ods F ro nt W ro k La mp S W/ L H& R HF ol od s
6 14
PU
Pn a el Swi ct hL m a sp
BR
LHStopTailLamp/LHHeadTurnLamp/ SignalLampGroup/LicenseLamp
Power Circui ts
1 05
RD
109
RD
11 0
GN
K ey S at rt S W/ A U X B el ed OffS W AltOutput(+)/ StartRelay/ColdStartRelay /RoadingBreaker/MainPowerRelayA-D
F MI No . 0
F ai u l re Des cr p i it on
O pe r ato rnI t rel oc k C on rt o l / Ac t oi n La mp G r ou p Control Circuits
779 780 7 81
WH PU PK
H yd Q uci k C u o pl e r SW / Q uci k C u o pl e r So l V lav e H yd Q uci k C u o pl e r SW / Q uci k C u o pl e r So l V lav e LHH a nd el / 2 Sp e d T r i g er S W
10 2 122
YL BU
P ow re Ba ck up Al ar m Misc. Power
123
WH
HighFlowSW/FuelLevelInd / ActionLamp
1 24 1 25 1 26
RD RD PK
H ea et r & H V AC K ye S WR elay H VA CC on de ns er F an Re al y O pe a r ot r nI et rl oc k C o nt ro l
127 1 28
OR PK
Col dS at tr S W A UX H yd Co nt o r l/A UXB l ee d O f f SW
14 3 15 3 14 15 4 10 8
YL BU GN BU GN
Fo r nt Wo kr ni gL m a pS W Ra e rW ro ki ng La m p SW B ea co n S W/Ba e co n S o ck et P ow re So ck et + 12 Vo tl s J um e p rD m e an dF an
200 2 01
B K BK
Mai nChas si s O p reaot r I nte lro ck C on t or l / P ar k B a r keS W
202
BK
Armrest SW
BK
1
Datavalidbutbelownormaloperationalrange. Dataerratic,intermittent,orincorrect.
3 04
WH
3
V otla g e ab o ve n o r ma l o r s ho r e t d h i gh .
306
GN
3 07
OR
308
YL
V otla g e be l ow n o r m a l o r s ho r e t dlow . C u r e nt b e l ow n o r m a l o r o pe n c i cr uti.
6
C u r e nt a b o ve n o r ma l o r g or u n de d c ri c ui t .
7
Mechanicalsys temnotrespondingproperly .
8
Abnormalfrequency,pulsewidth,orperiod.
9
A bn o m r al u pd at e .
10
A b no r ma l r at e o f c h an g e .
11
F aliu e r m o d e no t i d en t fi i ab l e.
12
B a d d ev i ce o r c o mp o n en t .
13
O u t o f ca lbi r at i on .
14
P a ar m et e r f ail ur e s.
AUXHydControl/HighFlowSW ImplementLocko utSW/LH &RHHandle/ MachineSecuritySystem/DetentValve Basic MachineCircuits S at rt er R el ay / S at tr er OperatorInterlockContro l/ MachineSecuritySystem K e y Star t S W / Op e ar t roI net rol c k C o nt r ol KeyStartSW/Alternator/ ResDMMLAlt/ MachineSecuritySystemCon trol
3 21 3 22
BR GY
B a ck Up Pr e s u er S W/ B ca k U p Al a m r L H Ha nd l e Fo r w ardH o r n SW / H or n J um pe r
327 A39 0 A36 4 A 34 7
PK GY BU GN
F e ul Pump PRM F u leS h utd w o n So l n e odi / D i d o e Bl o ck S t rat R ela y / M a c ihn e Se c rui yt S y stem C on t M ai n Po we r R e al y C o li A - D Monitoring Circuits
403
GN
15
P a ar m et e r f ail ur e s.
4 04
16
P a ar m et e r n ota v alia bl e .
405
GY
17
M o du l e n ot r e sp o n din g.
4 06
PU
4 36 4 39
OR YL
L H Ac toi n La mp G p / H dy r au lci F i tl e r By p sa s S W R H Ac toi n La mp G P / I m plm e en t L co k ou t S W
4 40 4 47
BR PK
R H Ac t oi n La mp G P / Ai r F itle rnI dci aot r R H Ac toi n La mp G P / F e u l L ev e lnI d / F ue l S n e de r
C 44 4 C5 47 C 46 0
18
S e ns o r su p pl y f au l .t
19
C on di ti on n ot m et .
20
P a ar m et e r f ail ur e s.
¹TheFMIisadiagnos t iccodethatindi cateswhattypeoffailurehasoccurred.
YL
Alternator(R)Term./HourMeter/ MachineSecuritySystemCon trol L H Ac toi n La mp G p / Hy d Ol iT e m p er aut r e S W LHActionLampGp/AUXBleedoffSW/ EngineOilPressureSW L H Ac toi n La mp G p / E g n i ne C oo l Te mp S W
GN BU
GY YL
LHH a nd el / Wo kr T o l C1 S W Pw o re To lo s S w ti c h
A 75 2 F76
BR WH
P ow er T o los S wit ch / W at e r Pu mp L oc k ou t Re l ay / D et e tnV avl e / O tpr I nte lro ck C o tn OperatorInterlockCont rol/AUXHydControl/ ParkBrakeSW
F780
PK
G78 9 H 74 6
PU YL
M ai n P w o er R eal y A- D / M ca hni e Se c rui yt S y ste m S ol en oi d De ma nd F an ( +)
H 74 7
BR
S ol en oi d De ma nd F an ( )-
H 75 8 H 75 9
BR OR
W or k T o l ( C+ ) R lea y / C ( +) S oel n iod W or k T o l ( C - ) R ela y / C ( - ) So l n e odi
H 79 1 H 79 2 J 76 4
GN BR BR
R H Ha nd l e W K T LC ( +) S W / R lea y C ( +) C ol i R H Ha nd l e W KTLC 1 S W / Re l ay ( C )- C ol i Tm e pS n e so rG or un d
M 73 2 M 73 3 R 73 2
OR PK BR
S t rat R lea y / Ma c ihn e Se cu rti y S ys t m e C on t or l T oo l Co n e n cot r / W rok T o l R lea y C ( +/ C- ) O ut p tu H yd a r ul ci T m e p. S n e so r
X3 74
GY
L O C Co e d IP, Bi t 2
8 77
YL
C old St ar t Re al y / G l ow P ul gs
F86 4 G88 4
PU GN
R H Ac toi n La mp G r ou p / Ma c ihn e Se c rui yt S y stem R H Ac toi n La mp G r ou p / Ma c ihn e Se c rui yt S y stem
94 4 94 5 961
O R BR BR
Cat Dat aLi kn (+) Cat Dat aLi kn (- ) OVRD Switch
975
WH
OperatorInterlockCont/TransmissionSole noid/ Implemen tPilotSolenoid
A 95 8 E 91 7
WH WH
O pe r ato rnI t rel oc k C on t / P rak B a r k eS oel no i d I mp e l me nt L oc ko ut S W
E918
GN
Implemen tLockoutSW/OperatorInterlockCont/ AUXHydraulicContro l
F95 0
YL
A ut o L ve eel r S W / V a l ve D VT R AR C MT L 24 8 HF
G99 6 G982 G 98 3
YL PK GN
P ar k B a r keS o l / O pe r ato rnI t rel oc k C on rt o l Implemen tLockoutSW/AUXHydControl Am r e r st S W S / ea tS W
G984
PK PU
SeatSW/OperatorInterlockControl/ AUXHydraulicContro l
K 92 7
BU
H yd Q uci k Co u lpe r SW / Q uci k Co u lpe r So l en oi d
L 98 7 L98 9 L99
WH OR GN
C old St ar t Re al y / C o dl S at rt S W A 1 & A2 S ol e o n i d / AU X Hy d ar ul i c Co nt r ol T wo S pe ed S oel no i d / A U X Hy d ar ul i c Co nrto l
M 90 1 M0 94 M0 95
YL OR WH
R H Ac toi n La mp I net rol c k O v er r i e d / A UX H yd C on t L O C Co de P I , Bi t0 L O C Co de P I , Bi t1
BU GY PK OR GN
R C 2 Va l ev G r ou p So l en oi d / Doi d e R C 1 Va l ev G r ou p So l en oi d / Doi d e RXD -COMM #1 T X D -COMM #1 S gi na G l N D - CO M M # 1 A 1 So l en oid / A U X H yd r u a lci C on t or l A 2 So l en oi d / A U X H yd r u a l ci C on t or l
YL BU BU
R H Ac toi n La mp G P / Al t er n ator / R e s DM ML A l t S ot p P r es su er S W1 T o l Co n ec ot r / Ju mp er
PK
H416
GN
C old Sat r t Pu mp / C ol d Sat r t Th e m r o SW TransmissionSolen oid/OperatorInterlockControl
P 97 8 P 97 9
GN YL
Accessory Circuits
P 98 0
OR
5 00 5 01
BR GN
W i pe r W a s he r SW / Fr o tn W pi er M oto r W i pe r W a s he r SW / Fr o tn W pi er M oto r
P981
5 06 5 13
PU OR
W i pe rW as h re SW /W as h re B totel A/CC o m rpe s o r R e l ay O upt u t / A / C Co mp S ol
PU WH
A/CC one d n es r F an M ot o r Re l ya O upt ut / F a ns T ru nSi gnal SW /Haz ra dSW
PU BU
L H Ha n lde 2 S e p e dT rgi ge r S W / A U X Hy d C n o t or l
P 98 3 P 98 4 P98 6
GN YL PU
Hih g F l ow S W / AU X Hy dr a uli c Co nrto l W or k T o l R lea y C ( +/ C- ) O ut pu t / A U X H yd C on t RH Hand el Wor kTo lo A2 SW /AUX Hyd Cont
5 37 5 49
GN PK
T ur n Sign al S W H / az ar d S W / F al sh er RHH a nd el / Wo kr T o l Tr g i ge r SW
P 98 7 P 98 8
GN OR
A UX B el ed OffS W/ A U X H yd a r ulci C on rt ol L oc ko ut R leay / I M P P l i ot S ol / O tpr nI et lr oc k C o nt
5 67 A51 7
WH PU
AC / P er ss ur e SW / Co mp e r ss or R el ay C oi l T oo l C n o n ce t ro/ S p ar e R lea y Fu s e B l o ck 1
BU
Stp oLam p R el a y / Sto p P r e s u er S W 1
P91 P 99 3 P 99 4 P 99 6
PK OR BU GN
H gi h F l ow SW / AU X H y dr au il c Co nt o r l L H Ha n lde C n o t Fol w SW / A UX H y rda lui c Co nt r ol R H Ha nd l e R o lel r P ow er / A UX H yd r au lci C on t or l R H Ha nd l e R o lel r Sgi n la/ A UX H y rda lui c Co nrto l
P 99 7 R95
BR BU
R H Ha nd l e R o lel r G o r un d / AU X Hy d ar ui lc C n o t or l C o al nt T m e p. S en so r
T91 0 T92 0
YL PK
Y905 Y 95 2
YL YL
F e rr i et C oil / M ac hi n e Se c rui yt S y stem C on t or l M SS E x cit reC ol i/ M a ch i e n S e cu rtiy S ys t m e C on t HighFlowRelay/HighFlowSolenoid D em an d Fa n S p e d Se ns or
6 03
PK
604
OR
605
YL
TurnSignalSW/LHStopTaillamp/ LHHeadTurnLamp/SignalLampGroup
606
GY
TurnSignalSW/RHStopTaillamp/ RHHeadTurnLamp/SignalLampGroup
226B: MJH1-10574
236B2: HEN6750-UP
247B2: MTL5075-UP
257B2: SLK7300-UP
287B: ZSA1-UP
226B2: MJH10575-UP
242B: BXM1-4224
248B: SCL1-UP
262B: PDT1-UP
232B: SCH1-2474
242B2: BXM4225-UP
252B: SCP1-4599
267B: CYC1-UP
Attachment & Cab Connector Location Schematic Location
Connector Number
36
34
3
42
20
43 1 57
21 22
23
27
I-3, I-4
13
CONN 5
H-5
55
G-3
CONN 9
F-15
CONN 11
G-15 , G-11
CONN 12
H-15 , H-11
2
Component Part Number
200-L32 BK-14
Electrical Schematic Symbols And Definitions FUSE- Acomponent in an electricalcircuit that willopen the circuit if too much current flowsthrough it. REEDSWITCH- Aswitch whose contacts are controlled by a magnet. A magnet closes the contactsof a normally open reed switch; it opens the contactsof a normally closed reed switch. SENDER- Acomponent that is used with a temperature or pressure gauge. The sender measures the temperature or pressure. Its resistance changes to give an indication to the gauge of the temperature or pressure.
T
RELAY(Magnetic Switch) - Arelay is an electricalcomponent that is activatedby electricity. It hasa coil that makes an electromagnet when current flows through it. The electromagnet can open or close the switch part of the relay. CIRCUIT BREAKER(C/B) - Acomponent in an electricalcircuit that willopen the circuit if too much current flowsthrough it. This does not destroythe circuit breaker and it can be reset to become part of the circuit again. SOLENOID- Asolenoid isan electrical component that is activated byelectricity. It has a coilthat makes an electromagnet when current flows through it. The electromagnet can open or close a valve or move a piece of metal that can do work.
Printed in U.S.A.
9 2
Electrical Schematic Symbols And Definitions
34 T
34 34 34
CONN 20
H-6 , F-6
42
CONN 24
E-3
13
CONN 34
H-15 , H-11 , H-3
34
CONN 35
I-7 , I-8, I-13
1
CONN 36
55
4 24
Machine Location
CONN 4 CONN 8
56
I-3
13
CONN 37
I-6
43
CONN 38
E-4
9
Theconnectorsshowninthischartareforharness toharnessconnectors. Connectorsthatjoinaharnes s toacomponentaregenerallylocatedatornearthe component.SeetheComponentLocationChart.
Pressure Symbol
Temperature Symbol
Level Symbol
Flow Symbol
Normallyopen switch that will close with an increase of a specific condition (temp-press-etc.).
Normallyopen switch that is closed due to an applied condition, and willopen again with a specific decrease in that condition.
Normallyclosed switch that will open with an increase of a specific condition.
Normallyclosed switch that isopen due to an applied condition, and willclose again with a specificdecrease in that condition. 36
4
2
3
1
The circle indicatesthat the component has screwterminals and a wire can be disconnected from it.
57 Related Electrical Service Manuals Title
34 21
24
K 3A A tl er na o t :r
2 39 0 - 77 2 1 43 -0 53 9
O pe ar ot rI nt erl ock Co nt or :l
20 43
22
27
Form Number
R 2 7. KW E el ct ri cS t ar ti ng M ot or : A ux liai y r H yd ar ul ci Co nt or l sy st em :
23
S EN R5 84 1
No circle indicatesthat the wire cannot be disconnected from the component.
S EN R3 8 28 R EN R2 89 3 R E N R2 86 4
Thisindicates that the component has a wire connected to it that is connected to ground.
42 Thisindicates that the component does not have a wire connected to ground. It is grounded bybeing fastened to the machine.
F l ow C on t or l S lo/ A U X H y dr a uli c Co nt r ol TwoSpeedSoleno id/AUXHydraulicControl/ HighFlowRelay/RHActionLamp
P 98 2
C 57 6
Lighting Circuits B ea co nS oc ke t B / ea co nS W StopLampRelay/RH&LHStopTailLamp/ SignalLampGroup
277B: MDH1-UP
9X-1123
Plug
©2006 Caterpillar AllRights Reserved
ArmrestSW/OperatorInterlockControl/ AUXHydraulicContro l
G985
G 46 5
5 14
268B: LBA1-UP
257B: SLK1-7299
Pin or Socket Number
Wire Gauge
Ground Connection
O pe r ato rnI t rel oc k C on rt o l / Ac t oi n La mp G r ou p
7 82 A5 71
M 90 6 M 90 7 N957 N960 N7 99
536
252B2: SCP4600-UP
247B: MTL1-5074
Wire Color
Circuit Identification Number
RHStopTailLamp/RHHeadTurnLamp
PU
QC P LR Au ot Le ve l P ow re Wi pe rWa sh er Power Radio
203
246B: PAT1-UP
236B: HEN1-6749
Socket
Single Wire Connector
Part Number For Connector Recepticle
1
RoadingLampSW/LH&RHHeadTurnLamp
676
M ai n Po w erR ea l yO u pt ut A C LHH a nd e l F ro wa rd Ho rn S W
YL GY PK
2 4
YL
619 674
M ai n Po w erR e al y O u pt ut D
PU RD
11 7 11 8 119
D aa t v a ldi b u t a b ov e n o m r a l op e a r t oi n a l ar n ge .
5
618
PW R Fu le Sh ut Of f
YL
12 1 14 1
Ground Circuits
232B2: SCH2475-UP
216B2: RLL6800-UP
Pin
L-C12 3E-5179
Volume 2 of 2: ATTACHMENTS AND CAB
D es cr pi it on
11
Failure Mode Identifiers (FMI)¹
216B: RLL1-6799
Li ghti ng Ci rcui ts Cont.
617
Harness Connector Serialization Code: The "C" stands for "Connector" and the number indicates which connector in the harness. (C1, C2, C3, .....)
AG-C4 111-7898 325-AG135 PK-14
Skid Steer Loaders: 216B, 216B2, 226B, 226B2, 232B, 232B2, 236B, 236B2, 242B, 242B2, 246B, 248B, 252B, 252B2, 262B, 268B Multi Terrain Loaders: 247B, 247B2, 257B, 257B2, 267B, 277B, 287B Electrical System
Harness Identification Letter(s): (A, B, C, ..., AA, AB, AC, ...)
Part Number for Connector Plug
C-C4 AG-C3 130-6795 130-6795
1
1
F-9
Hour Meter N ( ACD)
Resistor,SenderandSolenoid Specifications Solenoid:
F-8
F 1 -3
Ground -Cab C ( OSA)
Solenoid:
Switch -AUX Hydraulic Mode N ( ACD)
Co l i - MSS Ex cier t (CO SA)
Di d oe -Valve Group Remote Control
231-6287
Switch - Ar m r set (COSA)
Coil -MSS Exciter (NACD)
Flasher (COSA)
212-3350
2
Harness identification code This example indicates wire 135 in harness "AG".
Sure-Sealconnector: The plug and receptacle contain both pins and sockets.
1 2
Wire, Cable, or Harness Assembly Identification: IncludesHarness Identification Letters and Harness Connector Serialization Codes
Machine Location
1
E-9
Contr lo -Machine Secur ty i System
215-3272
Schematic Location
Component
G-13
Action a Lmp Group -LH N ( ACD)
Coil -Ferr te i Asy. (MSS)
Part No.
Machine Location
Action a Lmp Group -LH COSA) (
Deutsch connector: The plug contains allsockets and the receptacle containsallpins.
55
9
56
) s
e 2 h c n i L 4 2 O x V s e h c 3 i n 0 - 9 3 9 : s 1 i n 4 o s 6 n e m i R D ( N , g E e a P R 0 2
Machine Harness Connector And Component Locations
