8J6790 BASIC VALVE GROUP--Type 1 Part of 8J6099 Diverter Valve Group shown on Page 170 AN ATTACHMENT 988B

STEERING SYSTEM

VALVE GP

0. 8J-6790 VALVE GP

BRAKING SYSTEM

PUMP GP

1. 3G-6856 PUMP GP-GE

STEERING SYSTEM

VALVE GP

2. 8J-6790 VALVE GP

BRAKING SYSTEM

PUMP GP

3. 1V-5144 PUMP GP-GE
4. 8J-6694 BASIC GEAR
5. 1V-5144 PUMP GP-GE
6. 1V-5144 PUMP GP-GE
7. 3G-7610 PUMP GP-GE

STEERING SYSTEM

STEERING COLUMN GP

8. 1V-4912 COLUMN GP-
9. 1V-4912 COLUMN GP-
0. INFORMATION

WHEEL LOADER 988B WHEEL LOADER 50W
988B WHEEL LOADER 50W00001-06040 (MACHINE) POWERED BY 3408 ENGINE SEBP1079 988B 50W (1976)

STEERING SYSTEM

VALVE GP

8J-6099 VALVE GP-DIVERTER

8J-6790 VALVE GP

8J-1553 VALVE GP-NEUTRALIZER

9J-8225 VALVE GP

8J-2318 VALVE GP-STEERING

8J-3667 VALVE GP

#SEBP10790560

8J-6790: VALVE GP

VALVE GP

8J6790 BASIC VALVE GROUP--Type 1
Part of 8J6099 Diverter Valve Group shown on Page 170
AN ATTACHMENT

c210157 SEBP1079

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Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	9S-8010	[2]	PLUG
	2S-4078	[2]	SEAL
2.	9S-8001	[3]	PLUG
	4J-7533	[3]	SEAL
3.	5J-9101	[12]	SHIM
4.	8J-1705	[1]	SPRING

#SEBP10790561

3G-6856: PUMP GP-GEAR

PUMP GP-GEAR

3G6856 GEAR PUMP GROUP
Part of 2V6505 Supplemental Steering Arrangement listed on Page 167
AN ATTACHMENT

c170372 SEBP1079

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Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	0S-1595	[8]	BOLT
2.	6J-2391	[8]	WASHER
3.	9J-5654	[1]	SEAL
4.	008-3214	[1]	RING
	3G-6805	[1]	KIT (seal)
			(Includes seals, rings and separators)

#SEBP10790562

8J-6790: VALVE GP

VALVE GP

8J6790 BASIC VALVE GROUP--Type 2
Part of 8J6099 Diverter Valve Group shown on Page 170
AN ATTACHMENT

c220465 SEBP1079

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Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	9S-8010	[2]	PLUG
	2S-4078	[2]	SEAL
2.	9S-8001	[3]	PLUG
	4J-7533	[3]	SEAL
3.	5J-9101	[12]	SHIM
4.	5J-3419 C	[1]	SPRING
5.	3G-7628 C	[1]	SPACER
	C		INDICATES CHANGE

#SEBP10790563

1V-5144: PUMP GP-GEAR

PUMP GP-GEAR

1V5144 GEAR PUMP GROUP--Steering and Braking
Serial No. 50W1 to 1151, 1235 to 50W1241 inclusive

c209162 SEBP1079

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Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	5F-3106	[1]	SEAL
2.	0S-1589	[2]	BOLT
	4D-3704	[2]	WASHER
3.	8J-6694 Y	[1]	PUMP GROUP
			(Separate Illustration)
	Y		SEPARATE ILLUSTRATION

#SEBP10790564

8J-6694: BASIC GEAR PUMP GROUP

BASIC GEAR PUMP GROUP

8J6694 BASIC GEAR PUMP GROUP
Serial No. 50W1 to 1151, 1235 to 50W1241 inclusive
Part of 1V5144 Gear Pump Group

c177584 SEBP1079

8J6694 BASIC GEAR PUMP GROUP Parts scheme

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Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	9J-5655	[1]	SEAL
2.	9J-5654	[1]	SEAL
3.	0S-1573	[8]	BOLT
	6J-2391	[8]	WASHER
4.	5S-1522	[1]	RING
5.	8J-9212	[1]	COUPLING
6.	1B-2571	[8]	STUD
	7H-3607	[8]	NUT
	4B-4281	[8]	WASHER
7.	8H-3128	[3]	BOLT
			THE FOLLOWING REPAIR KITS ARE AVAILABLE:
	3G-2274	[1]	KIT (rear pump)
	3G-2275	[1]	KIT (front section)
	3G-0657	[1]	KIT (seal)
	3G-7279 C	[1]	KIT (rear section)
			(To be used for pump when converted to increased displacement)
	C		INDICATES CHANGE

#SEBP10790565

1V-5144: PUMP GP-GEAR

PUMP GP-GEAR

1V5144 GEAR PUMP GROUP--Steering and Braking
Serial No. 50W1152 to 50W1234 and 50W1242 to 50W2920 inclusive

c166160 SEBP1079

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Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	5F-3106	[1]	SEAL
2.	0S-1589	[2]	BOLT
	4D-3704	[2]	WASHER
3.	3G-5864 C	[1]	PUMP GROUP
			THE FOLLOWING REPAIR KITS ARE AVAILABLE:
	3G-5879 C	[1]	KIT (front section)
	3G-2274 C	[1]	KIT (rear section)
	3G-5873 C	[1]	KIT (seal)
	C		INDICATES CHANGE

#SEBP10790566

1V-5144: PUMP GP-GEAR

PUMP GP-GEAR

1V5144 GEAR PUMP GROUP--Steering and Braking
Serial No. 50W2921-Up
3G7610 Pump parts are shown on Page 172B

c171089 SEBP1079

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Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	5F-3106	[1]	SEAL
2.	0S-1589	[2]	BOLT
	4D-3704	[2]	WASHER
3.	3G-7610 Y	[1]	PUMP GROUP
			(Separate Illustration)
			THE FOLLOWING REPAIR KITS ARE AVAILABLE:
	3G-5879 C	[1]	KIT (front section)
	3G-2274 C	[1]	KIT (rear section)
	3G-5873 C	[1]	KIT (seal)
	C		INDICATES CHANGE
	Y		SEPARATE ILLUSTRATION

#SEBP10790567

3G-7610: PUMP GP-GEAR

PUMP GP-GEAR

3G7610 GEAR PUMP GROUP
Serial No. 50W2921-Up
Part of 1V5144 Gear Pump Group shown on Page 172A

c171090 SEBP1079

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Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	9J-7729	[2]	SEAL
2.	3G-1280	[1]	RING
3.	0S-1573	[8]	BOLT
	6J-2391	[8]	WASHER
4.	5S-1522	[1]	RING
5.	8J-9212	[1]	COUPLING
6.	1B-2571	[8]	STUD
	7H-3607	[8]	NUT
	4B-4281	[8]	WASHER
7.	3G-7242	[1]	PLUG
			THE FOLLOWING REPAIR KITS ARE AVAILABLE:
	3G-5879	[1]	KIT (front section)
	3G-5873	[1]	KIT (seal)
	3G-7279	[1]	KIT (rear section)

#SEBP10790568

1V-4912: COLUMN GP-ADJUSTABLE STEERING

COLUMN GP-ADJUSTABLE STEERING

1V4912 ADJUSTABLE STEERING COLUMN GROUP
Serial No. 50W1 to 50W4667 inclusive

c209791 SEBP1079

1V4912 COLUMN GP-ADJUSTABLE STEERING Parts scheme

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Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	5L-4041	[4]	BOLT
2.	1V-5775	[1]	CAP ASSEM.
			(Includes)
	6D-5974	[1]	BEARING
3.	0S-1591	[2]	BOLT
	3B-4506	[2]	LOCKWASHER
4.	2V-7849	[1]	BLOCK
5.	2V-9166	[2]	WASHER
	2H-3429	[2]	RING
6.	1P-3321	[2]	PIN
	3B-4605	[2]	PIN
	4B-4274	[2]	WASHER
7.	9K-6768	[1]	PIN
8.	1V-7323	[1]	BELLCRANK ASSEM.
			(Includes)
	3N-2818	[1]	BEARING
9.	4B-4229	[1]	SPRING
10.	1V-5770	[1]	COLUMN ASSEM.
			(Includes)
	1V-5771	[2]	BEARING
11.	2V-9167	[1]	PIN
12.	1V-5772	[2]	PIN
	1D-5121	[4]	NUT
	4B-4284	[4]	WASHER
13.	1V-5776	[1]	CAM
14.	9K-6769	[1]	LOCK
15.	2V-5903	[1]	KEY
16.	9K-5947	[1]	RING
17.	9K-6762	[1]	PIN
18.	9K-6666	[1]	ROD
19.	9K-6764	[1]	KNOB
20.	2V-7607	[1]	COVER
21.	4S-4465	[4]	SCREW

#SEBP10790569

1V-4912: COLUMN GP-ADJUSTABLE STEERING

COLUMN GP-ADJUSTABLE STEERING

1V4912 ADJUSTABLE STEERING COLUMN GROUP
Serial No. 50W4668-Up

c301226 SEBP1079

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Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	5L-4041	[4]	BOLT
2.	1V-5775	[1]	CAP ASSEM.
			(Includes)
	6D-5974	[1]	BEARING
3.	0S-1591	[2]	BOLT
	5M-2894 C	[2]	WASHER
4.	5V-4714 C	[1]	BLOCK
5.	2V-9166	[2]	WASHER
	2H-3429	[2]	RING
6.	1P-3321	[2]	PIN
	3B-4605	[2]	PIN
	4B-4274	[2]	WASHER
7.	5V-4713 C	[1]	PIN
8.	1V-7323	[1]	BELLCRANK ASSEM.
			(Includes)
	3N-2818	[1]	BEARING
9.	4B-4229	[1]	SPRING
10.	1V-5770	[1]	COLUMN ASSEM.
			(Includes)
	1V-5771	[2]	BEARING
11.	2V-9167	[1]	PIN
12.	1V-5772	[2]	PIN
	1D-5121	[4]	NUT
	4B-4284	[4]	WASHER
13.	8V-6812 C	[1]	CAM
14.	6V-5660 C	[1]	LOCK
15.	2V-7607	[1]	COVER
16.	4S-4465	[4]	SCREW
17.	9K-6762	[1]	PIN
18.	9K-6666	[1]	ROD
19.	9K-6764	[1]	KNOB
	C		INDICATES CHANGE