9D1830 CIRCLE DRIVE GROUP--Top View--Part 1 of 2 Serial No. 87V2969 to 87V2971 inclusive 120G MOTOR GRADER

HYDRAULIC SYSTEM

DRIVE GP

0. 9D-1830 CIRCLE DRI
1. 9D-1830 CIRCLE DRI
2. 2G-7830 DRIVE GP-C
3. 2G-7830 DRIVE GP-C
4. 6G-7130 DRIVE GP-C
5. 6G-7130 DRIVE GP-C

MOTOR GP

6. 9J-1300 GEROTOR MO

VALVE GP

7. 8J-5913 VALVE GP

MOTOR GP

8. 8J-5407 MOTOR GP-G

VALVE GP

9. 3G-5832 VALVE GP
0. INFORMATION

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

HYDRAULIC SYSTEM

DRIVE GP

9D-1830 CIRCLE DRIVE GROUP

2G-7830 DRIVE GP-CIRCLE

#SEBP10450610

9D-1830: CIRCLE DRIVE GROUP

CIRCLE DRIVE GROUP

9D1830 CIRCLE DRIVE GROUP--Top View--Part 1 of 2
Serial No. 87V2969 to 87V2971 inclusive

c214518 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	1H-7339	[1]	SEAL
2.	2H-9247	[1]	SEAL
3.	1B-5174	[1]	PLUG
4.	8D-5344	[1]	GEAR (36 teeth)
5.	9D-1142	[1]	WORM
6.	0S-1625	[9]	BOLT
	3K-2889	[9]	LOCKNUT
	2S-5658	[9]	WASHER
7.	5P-0885	[2]	CONE
	2J-6232	[2]	CUP
8.	5F-5434	[1]	VENT ASSEM.
9.	1D-4609	[1]	BOLT
	7M-2360 C	[1]	WASHER
10.	0S-1594	[4]	BOLT
	5D-0353	[2]	BOLT (self-locking)
	3B-4506	[6]	LOCKWASHER
11.	2B-7410	[1]	PLUG
12.	9D-1492	[1]	COVER
	5H-4909	[1]	SEAL
13.	4H-6996	[1]	PIN
14.	9D-1491	[1]	COUPLING
	C		INDICATES CHANGE

#SEBP10450611

9D-1830: CIRCLE DRIVE GROUP

CIRCLE DRIVE GROUP

9D1830 CIRCLE DRIVE GROUP--Side View--Part 2 of 2
Serial No. 87V2969 to 87V2971 inclusive
8J5407 Motor parts are shown on Page 194A

c214519 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8J-5407 YC	[1]	MOTOR GROUP
			(Separate Illustration)
2.	0S-1585	[4]	BOLT
3.	3B-4508	[8]	LOCKWASHER
4.	2G-1714	[1]	BRACKET
5.	9D-1488	[1]	HOUSING ASSEM.
			(Includes)
6.	9D-1489	[1]	BEARING
7.	5J-0861	[2]	STUD
8.	4D-6578	[2]	STUD
9.	2D-8154	[4]	STUD
10.	9D-1177	[1]	SHAFT
11.	5K-5288 R	[1]	SEAL GROUP
			(Includes)
12.	5K-5129	[2]	RING
13.	8D-7425	[2]	WASHER
14.	4F-9653	[1]	SEAL
15.	1A-1415	[1]	NUT
	8D-7423	[1]	LOCK
	8D-7424	[1]	SPACER
16.	1K-6870	[4]	LOCKNUT
	2S-0115 C	[4]	WASHER
17.	8D-7414	[1]	PINION
18.	7D-8983	[10]	SHIM .1270 mm(.005 in.) thick
	7D-8984	[6]	SHIM .1778 mm(.007 in.) thick
19.	1D-4719	[4]	NUT
	R		REMFG PART MAY BE AVAILABLE
	Y		SEPARATE ILLUSTRATION
	C		INDICATES CHANGE

#SEBP10450612

2G-7830: DRIVE GP-CIRCLE

DRIVE GP-CIRCLE

2G7830 CIRCLE DRIVE GROUP--Top View--Part 1 of 2
Serial No. 87V2972-Up and 82V795-Up

c214840 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	1H-7339	[1]	SEAL
2.	2H-9247	[1]	SEAL
3.	1B-5174	[1]	PLUG
4.	8D-5344	[1]	GEAR (36 teeth)
5.	9D-1142	[1]	WORM
6.	0S-1625	[9]	BOLT
	3K-2889	[9]	LOCKNUT
	2S-5658	[9]	WASHER
7.	5P-0885	[2]	CONE
	2J-6232	[2]	CUP
8.	5F-5434	[1]	VENT ASSEM.
9.	1D-4609	[1]	BOLT
	7M-2360	[1]	WASHER
10.	0S-1594	[4]	BOLT
	5D-0353	[2]	BOLT (self-locking)
	3B-4506	[6]	LOCKWASHER
11.	2B-7410	[1]	PLUG
12.	9D-1492	[1]	COVER
	5H-4909	[1]	SEAL
13.	4H-6996	[1]	PIN
14.	9D-1491	[1]	COUPLING

#SEBP10450613

2G-7830: DRIVE GP-CIRCLE

DRIVE GP-CIRCLE

2G7830 CIRCLE DRIVE GROUP--Side View--Part 2 of 2
Serial No. 87V2972-Up and 82V795-Up
8J5407 Motor parts are shown on Page 194A

c227973 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8J-5407 Y	[1]	MOTOR GROUP
			(Separate Illustration)
2.	0S-1585	[4]	BOLT
3.	3B-4508	[8]	LOCKWASHER
4.	2G-1714	[1]	BRACKET
5.	2G-7829	[1]	HOUSING ASSEM.
			(Includes)
6.	9D-1489	[1]	BEARING
8.	4D-6578	[4]	STUD
9.	2D-8154	[4]	STUD
10.	9D-1177	[1]	SHAFT
11.	5K-5288 R	[1]	SEAL GROUP
			(Includes)
12.	5K-5129	[2]	RING
13.	8D-7425	[2]	WASHER
14.	4F-9653	[1]	SEAL
15.	1A-1415	[1]	NUT
	8D-7423	[1]	LOCK
	8D-7424	[1]	SPACER
16.	1K-6870	[4]	LOCKNUT
	2S-0115	[4]	WASHER
17.	6G-5051 C	[1]	PINION
18.	7D-8983	[10]	SHIM .1270 mm(.005 in.) thick
	7D-8984	[6]	SHIM .1778 mm(.007 in.) thick
19.	1D-4719	[4]	NUT
	R		REMFG PART MAY BE AVAILABLE
	Y		SEPARATE ILLUSTRATION
	C		INDICATES CHANGE

#SEBP10450614

6G-7130: DRIVE GP-CIRCLE

DRIVE GP-CIRCLE

6G7130 CIRCLE DRIVE GROUP--Part 1
Serial No. 87V2972-Up. 8J5407--Page 194A. High Impact Breakaway Mechanism
AN ATTACHMENT

c181754 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8J-5407 Y	[1]	MOTOR GP-GEROTOR
2.	1B-4038	[2]	CUP-ROLLER BEARING
	1B-4046	[2]	CONE-BEARING
3.	1B-5174	[1]	PLUG-PIPE
4.	9D-1142	[1]	WORM-CIRCLE DRIVE
5.	5K-8454	[3]	BOLT
6.	5P-8245	[12]	WASHER
7.	6H-1717	[5]	BOLT
8.	2B-7410	[1]	PLUG-PIPE
9.	2H-9247	[1]	SEAL-O-RING
10.	7D-8983	[10]	SHIM .127MM(.005IN)THK
	7D-8984	[6]	SHIM .178MM(.007IN)THK
11.	4H-6996	[1]	PIN-SPRING
12.	9D-1491	[1]	COUPLING
13.	2G-6695	[1]	BRACKET
14.	1H-7339	[1]	SEAL-O-RING
15.	0S-1585	[4]	BOLT
16.	5F-5434	[1]	VENT AS
17.	6G-5534	[1]	COVER AS
	6G-5537	[1]	BEARING
18.	0L-1351	[4]	BOLT
	5M-2894	[4]	WASHER
	Y		SEPARATE ILLUSTRATION

#SEBP10450615

6G-7130: DRIVE GP-CIRCLE

DRIVE GP-CIRCLE

6G7130 CIRCLE DRIVE GROUP--Part 2
Serial No. 87V2972-Up. High Impact Breakaway Mechanism
AN ATTACHMENT

c181755 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	1D-4719	[4]	NUT
2.	6G-7132	[1]	HOUSING AS-DRIVE
3.	2D-8154	[4]	STUD
4.	8D-7426	[1]	BEARING-SLEEVE
5.	8D-9804	[1]	HOUSING-DRIVE
6.	4D-6578	[4]	STUD-TAPERLOCK
7.	6G-5547	[1]	PLATE
8.	6G-5538	[1]	COVER
9.	6G-5539	[1]	GASKET
10.	5H-4909	[1]	SEAL-O-RING
11.	6G-5542	[2]	SPACER
12.	6G-5533	[1]	GEAR-WORM (36 TEETH)
13.	1D-4609	[1]	BOLT
	7M-2360	[1]	WASHER
14.	5K-5288 R	[1]	SEAL GP-DUO-CONE
15.	5K-5129	[2]	RING-SEALING
16.	8D-7425	[2]	WASHER-THRUST
17.	6G-5532	[1]	SHAFT-DRIVE PINION
18.	1A-1415	[1]	NUT
	8D-7423	[1]	LOCK-NUT
	8D-7424	[1]	SPACER
19.	1K-6870	[4]	LOCKNUT
20.	5P-8248	[4]	WASHER-HARD
21.	4F-9653	[1]	SEAL-O-RING
22.	6G-5051	[1]	PINION-CIRCLE REVERSE
23.	6G-5548	[1]	SPACER
24.	5P-8245	[7]	WASHER
25.	0S-1585	[3]	BOLT
26.	2G-0475	[6]	DISC 2.87MM(.112IN)
	2G-0478	[5]	DISC 1.52MM(.060IN)
27.	6G-6122	[1]	SPRING-DISC
28.	6G-5543	[6]	SHIM .13MM(.005IN)
	6G-5544	[9]	SHIM .25MM(.010IN)
	R		REMFG PART MAY BE AVAILABLE

#SEBP10450616

9J-1300: GEROTOR MOTOR GROUP

GEROTOR MOTOR GROUP

9J1300 GEROTOR MOTOR GROUP
Serial No. 87V1138 to 87V2968 inclusive and 82V668 to 82V794 inclusive
Part of 9D1830 Circle Drive Group shown on Pages 191 and 193

c225857 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	9J-4974	[1]	COUPLING
2.	9J-4957	[1]	SEAL
3.	002-3455 C	[1]	RING
4.	9J-4965	[1]	SPACER
5.	9J-4975	[1]	WASHER
6.	9J-4967	[1]	SEAL
7.	9J-4960	[2]	RING
8.	9J-4972	[1]	SLEEVE
9.	9J-4968	[1]	ROTOR ASSEM.
10.	9J-4966	[1]	MANIFOLD
11.	9J-4963	[1]	RING
12.	0S-1605	[7]	BOLT
13.	9J-4970	[1]	COVER ASSEM.
14.	9J-7231 C	[1]	PLATE ASSEM.
15.	9J-5380	[1]	PLATE
16.	9J-4958	[1]	PLATE
17.	5P-3243	[1]	BEARING
18.	9J-4971	[1]	HOUSING ASSEM.
			(Includes)
19.	5P-3242	[1]	BEARING
20.	5P-3244	[2]	RACE
21.	5P-3240	[1]	BEARING
22.	5P-3241	[1]	BEARING
23.	9J-4961	[1]	LINK
			THE FOLLOWING REPAIR KIT IS AVAILABLE:
	9J-4872	[1]	KIT (seal)
	C		INDICATES CHANGE

#SEBP10450617

8J-5913: VALVE GP

VALVE GP

8J5913 PILOT OPERATED CHECK VALVE GROUP
Part of 9D995 and 2G3490 Circle Drive Motor Lines, 9D1770 and 2G3510 Blade Tip
Lines, 9D1765 and 2G3520 Blade Shift Lines and 9D860 Leaning Wheel Lines Groups
shown on Pages 195, 195B, 209 through 210A and 220 through 221-2

c207401 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	9J-0404	[2]	PLUG
	7J-9933 C	[2]	SEAL
3.	9J-4871 C	[2]	BALL
4.	9J-0403	[2]	SPRING
5.	9J-8285 C	[1]	BODY ASSEM.
			(Includes)
6.	9J-5768	[1]	PISTON
7.	9J-0405	[2]	SEAT
	C		INDICATES CHANGE

#SEBP10450618

8J-5407: MOTOR GP-GEROTOR

MOTOR GP-GEROTOR

8J5407 GEROTOR MOTOR GROUP
Serial No. 87V2969-Up and 82V795-UP
Part of 9D1830 and 2G7830 Circle Drive Groups shown on Pages 193B and 193D

c228005 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	3G-3711	[1]	COUPLING
2.	9J-4957	[1]	SEAL
3.	5P-7604	[1]	RING
4.	9J-4965	[1]	SPACER
5.	9J-4975	[1]	WASHER
6.	3G-3719	[1]	SEAL
7.	3G-9793 C	[2]	RING
8.	3G-3724	[1]	SLEEVE
9.	3G-3715	[1]	ROTOR
10.	3G-3712	[1]	MANIFOLD
11.	9J-4963	[1]	RING
12.	0T-0513	[7]	BOLT
13.	3G-3720	[1]	COVER
14.	9J-7231	[1]	PLATE ASSEM.
15.	3G-3725	[1]	PLATE
16.	3G-3714	[1]	PLATE
17.	5P-3243	[1]	BEARING
18.	9J-4971	[1]	HOUSING ASSEM.
			(Includes)
19.	5P-3242	[1]	BEARING
20.	5P-3244	[2]	RACE
21.	5P-3240	[1]	BEARING
22.	5P-3241	[1]	BEARING
23.	3G-3702	[1]	LINK
			THE FOLLOWING REPAIR KIT IS AVAILABLE:
	3G-9794 C	[1]	KIT (seal)
	C		INDICATES CHANGE

#SEBP10450619

3G-5832: VALVE GP

VALVE GP

3G5832 PILOT OPERATED CHECK VALVE GROUP
Part of 2G3510 and 2G3520 Valve Tip Lines Groups shown on Pages 209D and 210B
AN ATTACHMENT

c227178 SEBP1045

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Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8J-0331	[1]	VALVE
2.	6J-8696 H	[1]	SHIM 1.22 mm(.048 in.) thick
	5J-6153 H	[4]	SHIM 0.19 mm(.0076 in.) thick
3.	2J-6089	[1]	SPRING
4.	3K-6116 C	[4]	WASHER
5.	9J-4871	[2]	BALL
6.	9J-0404	[2]	PLUG
	7J-9933	[2]	SEAL
7.	9J-0403	[2]	SPRING
8.	3K-0360	[1]	SEAL
9.	8J-5456	[2]	ADAPTER
	3D-2824	[2]	SEAL
10.	9J-8274	[1]	BODY ASSEM.
			(Includes)
11.	9J-0405	[2]	SEAT
12.	9J-5768	[1]	PISTON
13.	8J-9250	[1]	PLUG
14.	4J-5309	[1]	SEAL
	C		INDICATES CHANGE
	H		USE AS REQUIRED