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9J4695 NEUTRALIZER VALVE GROUP Serial No. 50W1 to 50W5961 inclusive Part of 1V4963 Service Brake Control Group shown on Pages 154 & 154C 988B


BRAKING SYSTEM
VALVE GP
CONTROL GP

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

BRAKING SYSTEM

VALVE GP
VALVE GP-ACCUMULATOR CHARGING
9J-4693 VALVE GP-ACCUMULATOR CHARGING
VALVE GP-ACCUMULATOR CHARGING
9J-4693 VALVE GP-ACCUMULATOR CHARGING
VALVE GP-NEUTRALIZER
9J-4695 VALVE GP-NEUTRALIZER
VALVE GP-NEUTRALIZER
4T-3128 VALVE GP-NEUTRALIZER
VALVE GP-BRAKE
9J-4080 VALVE GP-BRAKE
VALVE GP-BRAKE
3G-2228 VALVE GP-BRAKE
PARKING BRAKE VALVE GROUP
3S-7443 PARKING BRAKE VALVE GROUP
VALVE GP-BRAKE
3G-2228 VALVE GP-BRAKE
VALVE GP
8J-8327 VALVE GP
VALVE GP
9J-8225 VALVE GP
 

#SEBP10790530
 

9J-4695: VALVE GP-NEUTRALIZER

9J4695 NEUTRALIZER VALVE GROUP
Serial No. 50W1 to 50W5961 inclusive
Part of 1V4963 Service Brake Control Group shown on Pages 154 & 154C
c209674 SEBP1079
9J4695 VALVE GP-NEUTRALIZER Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3J-4407 [1] SEAL  
2. 9J-4696 [1] VALVE GROUP  
3. 9S-8005 [1] PLUG  
  3K-0360 [1] SEAL  
4. 4J-3953 [1] RETAINER  
5. 2H-3788 [1] NUT  
6. 4J-3832 [1] SPRING  
7. 3H-1461 [2] SEAL  
8. 0S-1588 [14] BOLT  
9. 3B-4506 [6] LOCKWASHER  
10. 5J-1191 [1] COVER  
11. 5J-9100 [6] SHIM  
12. 5J-1188 [1] RETAINER  
  7M-8538 [1] SPACER  
13. 4J-8971 [1] SPRING  
14. 4J-3297 [1] RETAINER  
15. 4B-4278 [8] WASHER  
16. 1P-4577 [4] FLANGE  
17. 1J-9693 [1] PLUG  
  5F-1678 [1] SEAL  
 

#SEBP10790531
 

4T-3128: VALVE GP-NEUTRALIZER

4T3128 NEUTRALIZER VALVE GROUP
Serial No. 50W5962-Up
Part of 1V4963 Service Brake Control Group shown on Page 154F
c301573 SEBP1079
4T3128 VALVE GP-NEUTRALIZER Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5P-9440 [1] SEAL  
2. 4T-3206 [1] VALVE GROUP  
3. 9S-8005 [1] PLUG  
  3K-0360 [1] SEAL  
4. 4J-3953 [1] RETAINER  
5. 2H-3788 [1] NUT  
6. 4J-3832 [1] SPRING  
7. 3H-1461 [2] SEAL  
8. 0S-1588 [8] BOLT  
9. 1A-2029 [6] BOLT  
10. 5J-1191 [1] COVER  
11. 5J-9100 [6] SHIM  
12. 5J-1188 [1] RETAINER  
  7M-8538 [1] SPACER  
13. 4J-8971 [1] SPRING  
14. 4J-3297 [1] RETAINER  
15. 5M-2894 [8] WASHER  
16. 1P-4577 [4] FLANGE  
17. 1J-9693 [1] PLUG  
  5F-1678 [1] SEAL  
 

#SEBP10790532
 

9J-4080: VALVE GP-BRAKE

9J4080 BRAKE VALVE GROUP--Pressure Control
Part of 1V4963 Service Brake Control Group shown on Page 154
c182478 SEBP1079
9J4080 VALVE GP-BRAKE Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0T-0102 [8] BOLT  
2. 9S-4686 [1] PLUG  
  3J-1907 [1] SEAL  
3. 3K-2478 [1] SPRING  
4. 4J-6803 C [1] ORIFICE  
5. 5H-6005 [1] SEAL  
6. 9J-5624 [2] SHIM  
7. 0S-1588 [4] BOLT  
8. 4K-4114 [1] SEAL  
9. 5M-2894 C [4] WASHER  
10. 1P-4577 [2] FLANGE  
11. 9J-4075 [1] VALVE GROUP  
12. 2J-2864 [1] PLUG  
13. 6F-5559 [1] SEAL  
14. 0S-1571 [4] BOLT  
15. 9S-8005 [1] PLUG  
16. 3K-0360 [1] SEAL  
17. 9J-4077 [1] COVER  
18. 2J-1826 [1] SEAL  
19. 4J-6802 [1] SPRING  
20. 9J-4076 [1] PISTON  
21. 4J-3295 [1] RETAINER  
22. 5J-0570 [1] RETAINER  
23. 4J-3303 [1] SPRING  
24. 4J-3302 [1] SPRING  
25. 2H-3788 [1] NUT  
26. 9J-4078 [1] RETAINER  
27. 8M-4390 [1] SEAL  
28. 9J-4079 [1] RETAINER  
29. 1A-2029 [4] BOLT 29 mm(1.125 in.) long  
  4B-4278 [4] WASHER  
    - OR -
  3B-1915 C [4] BOLT 35 mm(1.375 in.) long  
  5M-2894 C [4] WASHER  
  C   INDICATES CHANGE
 

#SEBP10790533
 

3G-2228: VALVE GP-BRAKE

3G2228 PARKING BRAKE VALVE GROUP--Replaced by 3S7443
Serial No. 50W1 to 50W2137 inclusive
Part of 1V4963 Service Brake Control Group shown on Page 154
c209673 SEBP1079
3G2228 VALVE GP-BRAKE Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8S-6959 [1] SEAL  
2. 2L-6726 [1] RING  
3. 5H-6005 [1] SEAL  
4. 3J-7354 [1] SEAL  
5. 7K-6116 [1] COVER  
6. 4J-2506 [2] SEAL  
7. 9S-2694 [1] BODY GROUP  
    (Includes)
8. 9S-8001 [1] PLUG  
  4J-7533 [1] SEAL  
9. 3S-7447 [1] STEM  
10. 6F-6672 [2] SEAL 17.12 mm(.674 in.) I.D.  
  3S-7450 [2] SEAL 15.85 mm(.624 in.) I.D.  
11. 3B-4506 [2] LOCKWASHER  
12. 3S-7446 [1] COVER  
13. 2K-8199 [2] SEAL  
14. 0T-0065 [2] BOLT  
15. 9S-8002 [1] PLUG  
 

#SEBP10790534
 

3S-7443: PARKING BRAKE VALVE GROUP

3S7443 PARKING BRAKE VALVE GROUP--Field Installation Serial No. 50W1 to 50W2137 inclusive
c127082 SEBP1079
3S7443 PARKING BRAKE VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8S-6959 [1] SEAL  
2. 2L-6726 [1] RING  
3. 3S-7448 [1] KNOB  
4. 9M-1311 [1] NUT  
5. 7K-6116 C [1] COVER  
6. 4J-2506 [2] SEAL  
7. 9S-2694 [1] BODY GROUP  
8. 9S-8001 [1] PLUG  
  4J-7533 [1] SEAL  
9. 3S-7447 [1] STEM  
10. 6F-6672 [2] SEAL (.674" Inside Diameter)  
  3S-7450 [2] SEAL (.624" Inside Diameter)  
    (Parts of 9S2694 Group)
11. 3B-4506 [2] LOCKWASHER  
12. 3S-7446 [1] COVER  
13. 2K-8199 [2] SEAL  
14. 0T-0065 [2] BOLT  
15. 9S-8002 [1] PLUG  
  3J-7354 [1] SEAL  
16. 8F-8606 [1] SPRING  
17. 3S-7449 [1] PLUNGER  
18. 5H-6005 C [1] SEAL  
  C   INDICATES CHANGE FROM PREVIOUS
 

#SEBP10790535
 

3G-2228: VALVE GP-BRAKE

3G2228 PARKING BRAKE VALVE GROUP
Serial No. 50W2138-Up
Part of 1V4963 Service Brake Control Group shown on Page 154
c220463 SEBP1079
3G2228 VALVE GP-BRAKE Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8S-6959 [1] SEAL-LIP TYPE  
2. 2L-6726 [1] RING-RETAINING  
3. 5H-6005 [1] SEAL-O-RING  
4. 3J-7354 [1] SEAL-O-RING  
5. 7K-6116 [1] COVER-BRAKE VALVE  
6. 4J-2506 [2] SEAL-O-RING  
7. 8J-8327 CY [1] VALVE GP  
8. 0T-0065 [2] BOLT  
9. 2K-8199 [2] SEAL-O-RING  
10. 9S-8002 [1] PLUG-O-RING  
11. 3B-4506 [2] LOCKWASHER  
12. 3S-7446 [1] COVER-BRAKE VALVE  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10790536
 

8J-8327: VALVE GP

8J8327 VALVE GROUP
Serial No. 50W2138-Up
Part of 3G2228 Parking Brake Valve Group
c220464 SEBP1079
8J8327 VALVE GP Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6F-6672 [2] SEAL-O-RING  
2. 3S-7450 [2] SEAL  
3. 9S-8001 [1] PLUG-O-RING  
  4J-7533 [1] SEAL-O-RING  
 

#SEBP10790537
 

1V-4944: CONTROL GP-BRAKE

1V4944 PARKING BRAKE CONTROL GROUP
Serial No. 50W1 to 50W3306 inclusive
c209886 SEBP1079
1V4944 CONTROL GP-BRAKE Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4J-5325 [1] PIN  
  3B-4607 [1] COTTER PIN  
2. 2M-4036 [1] END (yoke)  
3. 6F-0612 [1] NUT  
4. 1V-5605 [1] CABLE ASSEM.  
5. 0L-1351 [1] BOLT  
  3B-4506 [1] LOCKWASHER  
6. 1V-5774 [1] STRIP  
7. 9K-6765 [1] KNOB  
 

#SEBP10790538
 

1V-4944: CONTROL GP-BRAKE

1V4944 PARKING BRAKE CONTROL GROUP
Serial No. 50W3307-Up
c172011 SEBP1079
1V4944 CONTROL GP-BRAKE Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4J-5325 [1] PIN  
  3B-4607 [1] COTTER PIN  
2. 2M-4036 [1] END (yoke)  
3. 6F-0612 [1] NUT  
4. 9V-3545 C [1] CABLE ASSEM.  
5. 0L-1351 [1] BOLT  
  3B-4506 [1] LOCKWASHER  
6. 1V-5774 [1] STRIP  
7. 9K-6765 [1] KNOB  
8. 1B-4330 C [2] NUT  
  1H-3338 C [2] LOCKWASHER  
9. 2V-2938 C [1] PLATE  
10. 1B-7904 C [2] SPACER  
  C   INDICATES CHANGE
 

#SEBP10790539
 

1V-4888: PEDAL GP-BRAKE

1V4888 SERVICE BRAKE PEDAL GROUP
Serial No. 50W1 to 50W5245 inclusive
c167212 SEBP1079
1V4888 PEDAL GP-BRAKE Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-1328 [4] WASHER  
2. 2V-2043 [4] NUT  
3. 2V-2044 [2] SPACER  
4. 2K-5830 C [4] BEARING  
5. 1V-9813 [2] RETAINER  
6. 1V-9645 [2] SHAFT  
7. 5D-2653 [4] WASHER  
8. 0S-1587 [2] BOLT  
9. 9K-4934 [2] LEVER  
10. 1A-2029 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
11. 4B-4278 [8] WASHER  
12. 9K-4929 [2] ANGLE ASSEM.  
    (Each Includes)
13. 9F-2978 [2] NUT  
14. 9K-4939 [2] BUMPER  
15. 4H-1477 [2] PIN  
16. 3B-4615 [4] COTTER PIN  
17. 4J-2701 [4] END  
18. 2V-2046 [2] SPRING  
19. 2V-6570 [1] PEDAL (R.H.)  
  9K-3837 [1] PEDAL (L.H.)  
  1T-0720 [2] BOLT  
20. 9K-4940 [2] CABLE ASSEM.  
21. 4H-7993 [1] CLAMP  
22. 1J-4384 [2] PIN  
23. 0S-1588 [2] BOLT  
  5P-1075 [2] WASHER  
24. 4V-0182 C [2] NUT ASSEM.  
25. 8F-5340 [4] SEAL  
  C   INDICATES CHANGE
 

Information:

Caterpillar Parts SIS Catalog 988B :

VALVE GP-ACCUMULATOR CHARGING
9J-4693 VALVE GP-ACCUMULATOR CHARGING
VALVE GP-ACCUMULATOR CHARGING
9J-4693 VALVE GP-ACCUMULATOR CHARGING
ACCUMULATOR GP
9J-8675 ACCUMULATOR GP
CONTROL GP-BRAKE
1V-4963 CONTROL GP-BRAKE
CONTROL GP-BRAKE
1V-4963 CONTROL GP-BRAKE
CONTROL GP-BRAKE
1V-4963 CONTROL GP-BRAKE
CONTROL GP-BRAKE
1V-4963 CONTROL GP-BRAKE
CONTROL GP-BRAKE
1V-4963 CONTROL GP-BRAKE
VALVE GP-NEUTRALIZER
4T-3128 VALVE GP-NEUTRALIZER
VALVE GP-BRAKE
9J-4080 VALVE GP-BRAKE
VALVE GP-BRAKE
3G-2228 VALVE GP-BRAKE
PARKING BRAKE VALVE GROUP
3S-7443 PARKING BRAKE VALVE GROUP
VALVE GP-BRAKE
3G-2228 VALVE GP-BRAKE
VALVE GP
8J-8327 VALVE GP
CONTROL GP-BRAKE
1V-4944 CONTROL GP-BRAKE
CONTROL GP-BRAKE
1V-4944 CONTROL GP-BRAKE

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Italy
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