4M1812 SOLENOID SWITCH ASSEMBLY--24 Volt Part of 4N3182 and 7N1285 Electric Starting Motor Group shown on Pages 81A & 85A 120G

ELECTRICAL AND STARTING SYSTEM

SWITCH GP

0. 4M-1812 SWITCH AS-

FRAME AND BODY

BOX GP-BATTERY

1. 9D-0730 BATTERY BO

ELECTRICAL AND STARTING SYSTEM

ALTERNATOR GP-CHARGING

2. 3P-0078 ALTERNATOR
3. 9D-8760 ALTERNATOR
4. 1P-9572 ALTERNATOR
5. 9D-5680 ALTERNATOR
6. 1P-9572 ALTERNATOR
7. 1P-9572 ALTERNATOR
8. 2P-1204 ALTERNATOR
9. 6N-9294 ALTERNATOR
0. INFORMATION

MOTOR GRADER 120G MOTOR GRADER 82V
120G MOTOR GRADER 82V00668-UP (MACHINE) POWERED BY 3304 ENGINE SEBP1045 120G 82V (1974)

ELECTRICAL AND STARTING SYSTEM

SWITCH GP

6N-5123 SWITCH AS-SOLENOID

4M-1812 SWITCH AS-SOLENOID

7H-7290 SWITCH AS-DISCONNECT

7N-0718 SWITCH AS-DISCONNECT

4N-8985 SWITCH GP

2G-7540 COOLANT FLOW SWITCH GROUP

#SEBP10450250

4M-1812: SWITCH AS-SOLENOID

SWITCH AS-SOLENOID

4M1812 SOLENOID SWITCH ASSEMBLY--24 Volt
Part of 4N3182 and 7N1285 Electric Starting Motor Group shown on Pages 81A & 85A

c228187 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	7N-1269 C	[1]	TERMINAL & PLATE AS
	4M-1834	[1]	PLATE-TERMINAL
2.	7F-4907	[1]	STRIP-INSULATION
3.	3H-3681	[2]	NUT-FULL
4.	3B-4508	[4]	LOCKWASHER
5.	3H-3680	[2]	NUT-JAM
6.	7F-3494	[2]	WASHER-STUD
7.	4M-1836	[2]	INSULATOR
8.	4M-1837	[2]	BUSHING
9.	7F-4906	[1]	STUD-TERMINAL
10.	4M-2800	[1]	TERMINAL
11.	7N-1271	[1]	TERMINAL AS
12.	4M-5274	[1]	SCREW-MACHINE (HEX HEAD)
	5P-9132 C	[1]	SCREW-WASHER HEAD (TRUSS HEAD)
13.	1P-3879	[1]	LEAD AS
14.	4M-3217	[2]	SCREW
15.	9G-6770 C	[1]	CONTACT AS
16.	4M-1813	[1]	CASE & COIL AS
17.	1F-0073	[2]	CLAMP
18.	4M-1815	[1]	SPRING-CONTACT
19.	9M-7657	[4]	NUT-SEALING
	9S-4489	[4]	SCREW AS
20.	9S-4490	[4]	GASKET-PLATE
	C		CHANGE FROM PREVIOUS TYPE

#SEBP10450251

9D-0730: BATTERY BOX GROUP

BATTERY BOX GROUP

9D730 BATTERY BOX GROUP--Heavy Duty--Type 2
Part of 4N8601 Direct Electric Starting Arrangement listed on Page 77

c211777 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	9D-0702	[1]	BOX ASSEM.
			(Includes)
2.	8D-1241	[1]	LID
3.	9F-6596	[2]	HOOK
	8B-5726	[4]	RIVET
4.	9F-6595	[2]	CATCH
	6F-9571	[2]	SPACER
	4B-4312	[4]	RIVET
5.	9B-2052	[2]	HINGE
6.	7M-3440	[2]	BRACKET
7.	9D-0703	[1]	BOX ASSEM.
			(Includes)
8.	9F-6595	[2]	CATCH
	6F-9571	[2]	SPACER
	4B-4312	[4]	RIVET
9.	8D-1241	[1]	LID
10.	9F-6596	[2]	HOOK
	8B-5726	[4]	RIVET
11.	7M-3440	[2]	BRACKET
12.	9B-2052	[2]	HINGE
13.	0S-1566	[4]	BOLT
	3B-4510	[4]	LOCKWASHER
	4B-4281	[4]	WASHER
14.	0S-1595	[12]	BOLT
	3B-4508	[12]	LOCKWASHER
15.	4B-4280 C	[6]	WASHER
16.	2G-4832 C	[1]	BRACKET ASSEM.
17.	2G-1695 C	[2]	BRACKET ASSEM.
18.	0V-0531 C	[4]	WASHER
19.	2G-5166 C	[1]	BRACKET ASSEM.
20.	2S-2301 C	[4]	SPACER
21.	1H-5514 C	[4]	BOLT
	C		INDICATES CHANGE

#SEBP10450252

3P-0078: ALTERNATOR GROUP

ALTERNATOR GROUP

3P78 ALTERNATOR GROUP--24 Volt, 40 Ampere
Serial No. 87V1138 to 87V1734 inclusive and 82V668 to 82V703 inclusive
3P77 Alternator parts are shown on Page 91

c153647 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	0S-1618	[2]	BOLT
	9M-1974	[2]	WASHER
2.	6N-0904	[1]	BRACKET
3.	3P-0077 Y	[1]	ALTERNATOR GROUP
			(Separate Illustration)
4.	9S-1240	[2]	NUT ASSEM.
5.	9F-8885	[1]	SPACER
6.	9S-1366	[1]	BOLT
7.	2M-0849	[2]	WASHER
8.	7F-3425	[1]	BOLT
	1D-4717	[1]	NUT
	5M-2894	[2]	WASHER
9.	1D-4574	[1]	BOLT
10.	6N-0903	[1]	BRACKET
11.	5B-0546	[1]	SPACER
12.	6N-0905	[1]	SPACER
13.	0T-0883	[2]	WASHER
	3L-6670	[2]	RETAINER
	Y		SEPARATE ILLUSTRATION

#SEBP10450253

9D-8760: ALTERNATOR GROUP

ALTERNATOR GROUP

9D8760 ALTERNATOR GROUP--24 Volt, 50 Ampere
Serial No. 87V1138 to 87V1734 inclusive and 82V668 to 82V703 inclusive
3P63 Alternator parts are shown on Page 92. AN ATTACHMENT

c153462 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8D-7529	[1]	WIRE ASSEM.
			(Includes)
	5P-0497 H		WIRE 4.06 dm(16 in.)
2.	4L-3916	[1]	TERMINAL
3.	3P-0063 Y	[1]	ALTERNATOR GROUP
			(Separate Illustration)
4.	9D-8711	[1]	HARNESS ASSEM.
			(Includes)
	5P-0497 H		WIRE (14 - 16 gauge)
	5P-0611		WIRE (8 gauge)
	7D-1314	[1]	TERMINAL (ground)
5.	4L-3916	[1]	TERMINAL
6.	0S-1616	[1]	BOLT
	1B-4330	[1]	NUT
	3B-4504	[1]	LOCKWASHER
7.	8D-6812	[2]	WIRE ASSEM.
			(Each Includes)
	5P-0497 H		WIRE .81 dm(3.19 in.)
8.	6H-6756	[1]	TERMINAL
9.	4L-3916	[1]	TERMINAL
10.	9D-8661 C	[1]	RELAY
	C		INDICATES CHANGE
	Y		SEPARATE ILLUSTRATION
	H		ORDER BY THE DECIMETRE

#SEBP10450254

1P-9572: ALTERNATOR GP-CHARGING

ALTERNATOR GP-CHARGING

1P9572 ALTERNATOR GROUP--24 Volt, 19 Ampere
Serial No. 87V1735 to 87V4170 inclusive and 82V704 to 82V870 inclusive
2P1204 Alternator parts are shown on Page 90C

c223276 SEBP1045

1P9572 ALTERNATOR GP-CHARGING Parts scheme

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	2P-1204 Y	[1]	ALTERNATOR GROUP
			(Separate Illustration)
2.	0T-0883 C	[1]	WAHSER 1.65mm (.065 in.)thick
3.	2M-0849 C	[3]	WASHER 4.62 mm (.187 in.)thick
4.	8S-4183 C	[1]	STRAP
	0S-1587 CJ	[1]	BOLT 44.4 mm (1.75 in.)long
	1D-4719 CJ	[1]	NUT
5.	1A-2029	[1]	BOLT
	1D-4717	[1]	NUT
	3B-4506	[1]	LOCKWASHER
6.	4N-5092 C	[1]	WIRE ASSEM.
			(Includes)
	5P-5622 H		WIRE .30m (12 in.)
	2L-8066	[1]	TERMINAL
7.	2L-8069	[1]	TERMINAL
8.	9H-8260	[1]	BOLT
	9S-1240	[1]	NUT ASSEM.
9.	0S-1595 CJ	[2]	BOLT 31.7mm (1.25 in.)
	C		INDICATES CHANGE
	Y		SEPARATE ILLUSTRATION
	J		USE AS REQUIRED
	H		ORDER BY THE METRE

#SEBP10450255

9D-5680: ALTERNATOR ARRANGEMENT

ALTERNATOR ARRANGEMENT

9D5680 ALTERNATOR ARRANGEMENT--24 Volt, 50 Ampere
Serial No. 87V1735-Up and 82V704-Up
AN ATTACHMENT

SEBP10450255 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Part No	Qty	Parts name
8D-7529	[1]	WIRE ASSEMBLY
9D-8661	[1]	RELAY 12 VOLT
9S-0173	[1]	CIRCUIT BREAKER 60 AMPERE
9S-6693	[1]	ALTERNATOR GROUP
5S-9088 RY	[1]	ALTERNATOR ASSEMBLY
5M-6214	[1]	PIPE PLUG CYLINDER BLOCK OIL PRESSURE
9S-6129	[1]	PULLEY ALTERNATOR DRIVE
1H-6936	[1]	WIRE ASSEMBLY ALTERNATOR TO ENGINE
9F-5320	[1]	TERMINAL
9F-9353	[1]	TERMINAL
8B-0653	[2]	INSULATOR
R		REMFG PART MAY BE AVAILABLE
Y		SEPARATE ILLUSTRATION

#SEBP10450256

1P-9572: ALTERNATOR GP-CHARGING

ALTERNATOR GP-CHARGING

1P9572 ALTERNATOR GROUP--24 Volt--35 Ampere
Serial No. 87V4171 to 87V4875 inclusive and 82V871-Up
6N9294 Alternator parts are shown on Pages 90D, 90E and 90G

c223277 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	0S-1587 J	[1]	BOLT 44.4 mm (1.75 in.) long
	1D-4719 J	[1]	NUT
2.	2M-0849	[3]	WASHER 4.62 mm (.187 in.)thick
3.	0S-1595 J	[2]	BOLT 31.7 mm (1.25 in.) long
4.	0T-0883	[1]	WASHER 1.65 mm (.065 in.)thick
5.	1A-2029	[1]	BOLT
	1D-4717	[1]	NUT
	3B-4506	[1]	LOCKWASHER
6.	4N-5092	[1]	WIRE ASSEM.
			(Includes)
	5P-5622 H		WIRE .30 m (12 in.)
	2L-8066	[1]	TERMINAL
7.	2L-8069	[1]	TERMINAL
8.	9S-1240	[1]	NUT ASSEM.
9.	6N-9294 RYC	[1]	ALTERNATOR GROUP
			(Separate Illustration)
10.	9H-8260	[1]	BOLT
11.	8S-4183	[1]	STRAP
	R		REMFG PART MAY BE AVAILABLE
	Y		SEPARATE ILLUSTRATION
	J		USE AS REQUIRED
	H		ORDER BY THE METER
	C		INDICATES CHANGE

#SEBP10450257

1P-9572: ALTERNATOR GP-CHARGING

ALTERNATOR GP-CHARGING

1P9572 ALTERNATOR GROUP--24 Volt--35 Ampere
Serial No. 87V4876-Up
6N9294 Alternator parts shown on Pages 90D, 90E and 90G

c180276 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	0S-1587 J	[1]	BOLT 44.4 mm(1.75 in.)long
	1D-4719 J	[1]	NUT
2.	2M-0849	[3]	WASHER 4.62 mm(.187 in.)thick
3.	8S-4183	[1]	STRAP
4.	0T-0883 C	[3]	WASHER 1.65 mm(.065 in.)thick
5.	9S-1240	[1]	NUT ASSEM.
6.	6N-9294 RY	[1]	ALTERNATOR GROUP
			(Separate Illustration)
7.	9H-8260	[1]	BOLT
8.	0S-1595	[1]	BOLT 31.7 mm(1.25 in.) long
			- OR -
	0S-1585 C	[1]	BOLT 38.1 mm(1.50 in.) long
9.	0S-1595 J	[1]	BOLT 31.7 mm(1.25 in.) long
	R		REMFG PART MAY BE AVAILABLE
	Y		SEPARATE ILLUSTRATION
	J		USE AS REQUIRED
	C		INDICATES CHANGE

#SEBP10450258

2P-1204: ALTERNATOR GP

ALTERNATOR GP

2P1204 ALTERNATOR GROUP--24 Volt, 19 Ampere
Serial No. 87V1735 to 87V4170 inclusive and 82V704 to 82V870 inclusive
Part of 1P9572 Alternator Group shown on Page 90A

c237894 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	031-0243	[3]	SCREW
2.	6N-3821 CJ	[1]	REGULATOR AS
3.	009-8708	[2]	BOOT-TERMINAL
4.	2L-8076	[1]	TERMINAL
5.	2L-8077	[1]	TERMINAL
6.	1P-1091	[1]	KIT-REGULATOR
7.	1P-1145	[1]	HOLDER AS-BRUSH
	1P-1137	[1]	HOLDER-BRUSH
8.	4B-2049	[4]	NUT
	3B-4502	[4]	LOCKWASHER
9.	1P-1138	[1]	TERMINAL AS
10.	5S-4245	[2]	SCREW-MACHINE
	6B-4542	[2]	LOCKWASHER
11.	4B-4274	[1]	WASHER
12.	1P-1130	[1]	KIT-BRUSH (2 BRUSHES)
13.	032-4000	[4]	SCREW
14.	2P-1714	[1]	KIT-GASKET (4 GASKETS)
15.	1P-1080	[1]	KIT-RETAINER & SEAL
16.	6N-6717 C	[1]	KIT-INSULATOR -TERM STUD
17.	2P-1709	[1]	RECTIFIER AS
18.	2P-1719	[1]	RECTIFIER AS (+)
	2P-1720	[1]	RECTIFIER AS (-)
19.	6N-1226 C	[1]	ROTOR AS
20.	1B-8705	[1]	KEY-WOODRUFF
21.	3B-4502	[10]	LOCKWASHER
22.	6N-5255 C	[1]	HEAD AS
23.	6D-9953	[2]	PIN-SPRING
24.	1B-5387 C	[1]	BALL BEARING
25.	2P-1713	[1]	KIT-RETAINER & SEAL
26.	017-2311	[3]	SCREW
27.	9M-5520	[1]	SCREW-TAPPING
28.	3B-4511	[1]	LOCKWASHER
29.	1P-1131	[1]	KIT-SHAFT PARTS
			(NUT & LOCKWASHER)
30.	2L-0611	[1]	BEARING-NEEDLE
31.	1P-1134	[1]	RACE-BRG INNER
32.	6N-5257 C	[1]	KIT-FRAME SCREW (12 BOLTS)
33.	6N-5254 C	[1]	HEAD AS
34.	3B-4507	[2]	LOCKWASHER 1CM(.43IN)ID
	3B-4504	[2]	LOCKWASHER .6CM(.25IN)ID
35.	1D-4718	[2]	NUT-FULL 11MM(.437IN)ID
	9M-1311	[2]	NUT-JAM 6.35MM(.25IN)ID
36.	2H-6139	[4]	LOCKWASHER
37.	1P-1088	[1]	KIT-BRUSH SPRING (2 BRUSH SPRINGS)
38.	2P-6261 C	[2]	INSULATOR
39.	7N-1806 C	[1]	BUSHING
			J-2P1698 ALTERNATOR AS
			(INCL ALL PARTS EXCEPT
			THOSE MARKED J)
	C		CHANGE FROM PREVIOUS TYPE

#SEBP10450259

6N-9294: ALTERNATOR GP-CHARGING

ALTERNATOR GP-CHARGING

6N9294 ALTERNATOR GROUP--Part 1
Serial No. 87V4171 to 87V5141 inclusive and 82V871-Up
Part of 1P9572 Alternator Group shown on Page 90B

c226124 SEBP1045

6N9294 ALTERNATOR GP-CHARGING Parts scheme

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5P-6920	[1]	BEARING
2.	7N-7806	[1]	COIL ASSEM.
3.	7N-7804	[1]	STRATOR ASSEM.
4.	7N-7795	[1]	COLLAR
5.	7N-7810	[1]	FRAME ASSEM.
6.	5P-9514	[1]	BEARING
7.	9L-2140	[1]	PLATE
8.	9L-6782	[1]	SHIELD
9.	7N-7800	[1]	ROTOR ASSEM.
10.	2K-4821	[1]	LOCKNUT
11.	7F-7621	[1]	WASHER
12.	9L-6783	[1]	COLLAR
13.	9L-2139	[1]	WASHER
14.	9N-1210	[1]	FAN ASSEM.
15.	7N-9020	[3]	SCREW ASSEM.
16.	9L-2137	[1]	RETAINER ASSEM.
17.	7N-7122 C	[1]	RECTIFIER ASSEM.
18.	9S-2396	[1]	BUSHING
19.	9S-2007	[4]	SCREW
20.	7N-7809	[1]	PLATE
21.	7N-7805 C	[1]	HOUSING
22.	7N-9024	[4]	BOLT
	C		INDICATES CHANGE