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8J3630 PILOT OPERATED RELIEF VALVE GROUP--3150 PSI--Type 2 Part of 8J2292 and 8J2294 Control Valve Groups shown on Pages 216 & 217 988B


HYDRAULIC SYSTEM
VALVE GP-RELIEF
VALVE GP-MANIFOLD
VALVE GP-CONTROL
FRAME AND BODY
LINES GP
HYDRAULIC SYSTEM
LINES GP-FRONT

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

HYDRAULIC SYSTEM

VALVE GP-RELIEF
VALVE GP-RELIEF
8J-2312 VALVE GP-RELIEF
VALVE GP-PITCH RELIEF
8J-3630 VALVE GP-PITCH RELIEF
VALVE GP-PITCH RELIEF
8J-3630 VALVE GP-PITCH RELIEF
VALVE GP
3G-3310 VALVE GP
VALVE GP-RELIEF
8J-7405 VALVE GP-RELIEF
 

#SEBP10790740
 

8J-3630: VALVE GP-PITCH RELIEF

8J3630 PILOT OPERATED RELIEF VALVE GROUP--3150 PSI--Type 2
Part of 8J2292 and 8J2294 Control Valve Groups shown on Pages 216 & 217
c162186 SEBP1079
8J3630 VALVE GP-PITCH RELIEF Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7M-8485 [2] SEAL  
2. 3G-1793 C [1] VALVE GROUP  
3. 4J-0522 [1] SEAL  
4. 8J-3620 [1] CAP  
5. 5J-6153 [6] SHIM .2mm(.0076 in.) thick  
  6J-8696 [2] SHIM 1.22 mm(.048 in.) thick  
6. 8J-0322 [1] SPRING  
7. 8J-0331 [1] VALVE  
  C   INDICATES CHANGE
 

#SEBP10790741
 

3G-3310: VALVE GP

3G3310 MANIFOLD AND RELIEF VALVE GROUP
Serial No. 50W304-Up. Part of 1V3854 Hydraulic Lines and Valve Group shown on
Pages 213A, 213C & 213E. 8J2312 Valve parts are shown on Page 214
c162913 SEBP1079
3G3310 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. 2V-6648 [1] MANIFOLD  
2. 8J-2312 Y [1] VALVE GROUP  
    (Separate Illustration)
3. 8J-6307 [1] PLUG  
  2S-4078 [1] SEAL  
4. 9S-4191 [1] PLUG  
  3J-1907 [1] SEAL  
5. 4J-0524 [1] SEAL  
6. 1P-4579 [2] FLANGE  
7. 0S-1585 [4] BOLT  
  4B-4280 [4] WASHER  
  Y   SEPARATE ILLUSTRATION
 

#SEBP10790742
 

8J-5792: VALVE GP

8J5792 VALVE GROUP
Serial No. 50W286-Up
Part of 8J2292 Control Valve Group shown on Page 216
c220469 SEBP1079
8J5792 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. 9S-8307 [9] SEAL  
2. 8J-5508 [2] BOLT  
3. 3B-4507 [4] LOCKWASHER  
4. 3L-4317 [2] BOLT  
5. 8M-0139 [2] BOLT  
  3B-4508 [2] LOCKWASHER  
 

#SEBP10790743
 

8J-2292: VALVE GP-CONTROL

8J2292 CONTROL VALVE GROUP -- Tilt & Lift
Serial No. 50W286-Up
Part of 1V4854 Lines and Valve Group shown on Pages 212, 213A, 213C, 213E & 213G
8J5506, 8J3630 & 8J5792 Valve parts are shown on Pages 211, 211A, 215, 215A & 215B
c182996 SEBP1079
8J2292 VALVE GP-CONTROL 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-0525 C [2] SEAL  
2. 1A-5822 C [16] BOLT  
  3H-7654 C [16] WASHER  
3. 8J-5439 C [2] BODY  
4. 8J-5792 YC [1] VALVE GROUP  
    (Separate Illustration)
5. 7J-7423 C [2] VALVE  
  7S-8491 C [2] SPRING  
6. 4J-7415 C [2] VALVE  
7. 1J-8960 C [4] SPRING  
8. 8J-5506 YC [1] VALVE GROUP  
    (Separate Illustration)
9. 9J-4083 C [2] HOUSING  
10. 9M-4225 C [8] BOLT  
11. 5M-2894 C [16] WASHER  
12. 9J-2415 C [2] SPRING (outer)  
13. 7J-8152 C [2] SCREW  
14. 9J-2499 C [2] SPRING (inner)  
15. 9J-2414 C [4] RETAINER  
16. 4J-0526 C [2] SEAL  
17. 7J-8979 C [2] VALVE  
18. 9J-2021 C [2] PLUG  
  2S-4078 C [2] SEAL  
19. 9S-8005 C [4] PLUG  
  3K-0360 C [4] SEAL  
20. 8J-5440 C [2] BODY  
21. 4J-0523 C [4] SEAL  
22. 5B-0213 C [8] BOLT  
23. 7J-8155 C [2] COVER  
24. 8J-3630 YC [1] VALVE GROUP  
    (Separate Illustration)
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10790744
 

8J-2294: CONTROL VALVE GROUP

8J2294 CONTROL VALVE GROUP--Tilt
Serial No. 50W1 to 50W285 inclusive
Part of 8J2292 Control Valve Group shown on Page 215
8J5506 and 8J3630 Valve parts are shown on Pages 211, 211A, 215 & 215A
c182997 SEBP1079
8J2294 CONTROL 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. 7J-8152 [1] SCREW  
2. 9J-2414 [2] RETAINER  
3. 9J-2499 C [1] SPRING (inner)  
4. 4J-0526 [1] SEAL  
5. 1A-5822 [8] BOLT  
  3B-4508 [8] LOCKWASHER  
6. 8J-5439 [2] BODY  
7. [1] VALVE GROUP  
8. 4J-0523 [2] SEAL  
9. 4J-7415 [2] VALVE  
10. 1J-8960 [2] SPRING  
11. 7J-8155 [1] COVER  
12. 5B-0213 [4] BOLT  
13. 3B-4506 [8] LOCKWASHER  
14. 8J-3630 Y [1] VALVE GROUP  
    (Separate Illustration)
15. 9S-8005 [2] PLUG  
  3K-0360 [2] SEAL  
16. 7J-7423 [1] VALVE  
17. 9J-2021 [1] PLUG  
  2S-4078 [1] SEAL  
18. 7S-8491 [1] SPRING  
19. 8J-5506 Y [1] VALVE GROUP  
    (Separate Illustration)
20. 9M-4225 [4] BOLT  
21. 9J-4083 [1] HOUSING  
22. 4J-0525 [1] SEAL  
23. 9J-2415 C [1] SPRING (outer)  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10790745
 

9J-4086: CONTROL VALVE GROUP

9J4086 CONTROL VALVE GROUP--Lift
Serial No. 50W1 to 50W285 inclusive
Part of 8J2292 Control Valve Group shown on Page 215
c209159 SEBP1079
9J4086 CONTROL 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. 9J-4083 [1] HOUSING  
2. 9J-2415 [1] SPRING (outer)  
3. 4J-0526 [1] SEAL  
4. 7J-8979 [2] VALVE  
5. 1J-8960 [2] SPRING  
6. 8J-5440 [2] BODY  
7. 1A-5822 [8] BOLT  
  3B-4508 [8] LOCKWASHER  
8. 4J-0523 [2] SEAL  
9. 9J-4085 [1] VALVE GROUP  
10. 7J-8155 [1] COVER  
11. 5B-0213 [4] BOLT  
12. 3B-4506 [8] LOCKWASHER  
13. 9S-8005 [2] PLUG  
  3K-0360 [2] SEAL  
14. 7J-7423 [1] VALVE  
15. 9J-2021 [1] PLUG  
  2S-4078 [1] SEAL  
16. 7S-8491 [1] SPRING  
17. 9J-2414 [2] RETAINER  
18. 9M-4225 [4] BOLT  
19. 7J-8152 [1] SCREW  
20. 9J-2499 [1] SPRING (inner)  
21. 4J-0525 [1] SEAL  
 

#SEBP10790746
 

1V-4919: LINES GP-GREASE

1V4919 GREASE LINES GROUP
c209877 SEBP1079
1V4919 LINES GP-GREASE Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2B-2404 [3] CLIP  
2. 2V-6241 [1] TUBE ASSEM.  
3. 5K-2298 [1] CLIP  
4. 3B-8489 [2] FITTING  
  5P-3741 [2] TEE  
  3B-7733 [2] NIPPLE  
5. 5P-4619 [2] CONNECTOR  
6. 2V-6238 [1] TUBE ASSEM.  
7. 3B-9400 [4] FITTING  
8. 3B-8485 [4] FITTING  
9. 2V-6237 [1] TUBE ASSEM.  
10. 4F-4879 [5] BOLT  
  4B-4278 [5] WASHER  
11. 3P-9200 [2] CLIP  
12. 2V-6240 [1] TUBE ASSEM.  
13. 2V-6239 [1] TUBE ASSEM.  
14. 3B-8488 [2] FITTING  
15. 5P-3422 [2] TEE  
16. 3B-9395 [1] FITTING  
 

#SEBP10790747
 

3V-0726: LINES GP-FRONT HYDRAULIC

3V726 FRONT LINES GROUP--Part 1 of 2
Part of 2V6793 Hydraulic Arrangement listed on Page 208
AN ATTACHMENT
c165739 SEBP1079
3V0726 LINES GP-FRONT HYDRAULIC Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1P-4579 [2] FLANGE  
2. 0S-1585 [4] BOLT  
  4B-4280 [4] WASHER  
3. 3V-3203 [1] HOSE ASSEM.  
    (Includes)
  5P-0182 H HOSE 66 cm(25.984 in.)  
4. 5S-3778 [1] STEM ASSEM.  
5. 5P-7535 CH GUARD 54 cm(21.26 in.)  
6. 3S-7116 [2] SLEEVE  
7. 3S-8567 [1] STEM ASSEM. (straight)  
8. 4J-0524 C [1] SEAL  
9. 4J-0522 C [3] SEAL  
10. 0T-0772 [12] BOLT  
11. 4B-4279 [16] WASHER  
12. 1P-4578 [6] FLANGE  
13. 8K-4691 [12] CLAMP  
14. 0S-1588 [16] BOLT  
15. 3V-3308 [22] WASHER  
16. 2V-2189 [1] BAR  
17. 3V-3268 [1] TUBE ASSEM.  
18. 1D-4717 [2] NUT  
19. 3V-3153 [1] BRACKET ASSEM.  
20. 3V-3152 [1] BAR  
21. 0S-1594 [4] BOLT  
22. 3V-3201 [1] HOSE ASSEM.  
    (Includes)
  5P-0181 H HOSE 101 cm(39.764 in.)  
23. 7S-0575 [1] STEM ASSEM. (90 degrees)  
24. 3S-7252 [2] SLEEVE  
25. 5P-7534 CH GUARD 91 cm(35.83 in.)  
26. 7S-0571 [1] STEM ASSEM. (22.5 degrees)  
27. 3V-3151 [2] BAR (4 holes)  
28. 3V-4408 [4] BAR (2 holes)  
29. 3V-3266 [1] TUBE ASSEM.  
30. 1P-5761 [2] FLANGE  
  1P-3704 [1] SEAL  
31. 0T-0768 [4] BOLT  
32. 3V-3273 [1] TUBE ASSEM.  
    (Includes)
33. 9S-4181 [1] PLUG  
  7M-8485 [1] SEAL  
34. 3K-1470 C [4] SPACER  
  C   INDICATES CHANGE
  H   ORDER BY THE CENTIMETRE
 

#SEBP10790748
 

3V-0726: LINES GP-FRONT HYDRAULIC

3V726 FRONT LINES GROUP--Part 2 of 2
Part of 2V6793 Hydraulic Arrangement listed on Page 208
AN ATTACHMENT
c165740 SEBP1079
3V0726 LINES GP-FRONT HYDRAULIC Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1585 [4] BOLT  
  4B-4280 [4] WASHER  
2. 1P-4579 [2] FLANGE  
3. 3V-3199 [1] HOSE ASSEM  
    (Includes)
  5P-0182 H HOSE 67 cm(26.378 in.)  
  8S-1396 [1] STEM ASSEM. (30 degrees)  
4. 3S-7116 [2] SLEEVE  
5. 5P-7535 CH GUARD 55 cm(21.65 in.)  
6. 3S-8567 [1] STEM ASSEM. (straight)  
7. 4J-0524 C [1] SEAL  
8. 4J-0522 C [5] SEAL  
9. 0T-0772 C [20] BOLT  
10. 4B-4279 [16] WASHER  
11. 1P-4578 C [10] FLANGE  
12. 8K-4691 [12] CLAMP  
13. 0S-1588 [16] BOLT  
14. 3V-3308 [22] WASHER  
15. 2V-2189 [1] BAR  
16. 3V-3268 [1] TUBE ASSEM.  
17. 3V-3154 [1] BRACKET ASSEM.  
18. 3V-3152 [1] BAR  
  0S-1594 [4] BOLT  
19. 1D-4717 [2] NUT  
20. 3V-3202 [1] HOSE ASSEM.  
    (Includes)
  5P-0181 H HOSE 101 cm(39.764 in.)  
21. 7S-0575 [1] STEM ASSEM.  
22. 5P-7534 CH GUARD 91 cm(35.83 in.)  
23. 3S-7252 [2] SLEEVE  
24. 7S-0571 [1] STEM ASSEM. (22.5 degrees)  
25. 3V-3151 [2] BAR (4 holes)  
26. 3V-4408 [4] BAR (2 holes)  
27. 3V-3266 [1] TUBE ASSEM.  
28. 1P-5761 [2] FLANGE  
  1P-3704 [1] SEAL  
29. 0T-0768 [4] BOLT  
30. 3V-3273 [1] TUBE ASSEM.  
    (Includes)
31. 9S-4181 [1] PLUG  
  7M-8485 [1] SEAL  
32. 3K-1470 C [4] SPACER  
33. 5H-4020 C [2] COVER  
  3V-3307 C [8] WASHER  
  C   INDICATES CHANGE
  H   ORDER BY THE CENTIMETRE
 

#SEBP10790749
 

1V-4878: LINES GP-FRONT

1V4878 FRONT LINES GROUP--Part 1 of 2
Part of 3V6657 Hydraulic Arrangement listed on Page 208A
AN ATTACHMENT
c214180 SEBP1079
1V4878 LINES GP-FRONT Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1P-4579 [2] FLANGE  
2. 0S-1585 [4] BOLT  
  3V-3306 [4] WASHER  
3. 3V-3203 [1] HOSE ASSEM.  
    (Includes)
  5P-0182 H HOSE 66 cm(25.984 in.)  
4. 5S-3778 [1] STEM ASSEM.  
5. 5P-5977 J GUARD .540 m(21.26 in.)  
6. 3S-7116 [2] SLEEVE  
7. 3S-8567 [1] STEM ASSEM. (straight)  
8. 4J-0524 [1] SEAL  
9. 4J-0522 [4] SEAL  
10. 0T-0772 [16] BOLT  
11. 3V-3307 [20] WASHER  
12. 1P-4578 [6] FLANGE  
13. 8K-4691 [10] CLAMP  
14. 0S-1588 [4] BOLT  
15. 3V-3308 [20] WASHER  
16. 2V-2189 [1] BAR  
17. 3V-3268 [1] TUBE ASSEM.  
18. 1D-4717 [2] NUT  
19. 3V-3153 [1] BRACKET ASSEM.  
20. 3V-3152 [1] BAR  
21. 0S-1594 [14] BOLT  
22. 3V-3201 [1] HOSE ASSEM.  
    (Includes)
  5P-0181 H HOSE 101 cm(39.764 in.)  
23. 7S-0575 [1] STEM ASSEM. (90 degrees)  
24. 3S-7252 [2] SLEEVE  
25. 5P-5976 J GUARD .910 m(35.837 in.)  
26. 7S-0571 [1] STEM ASSEM. (22.5 degrees)  
27. 3V-3151 [2] BAR (4 holes)  
28. 3V-4408 [3] BAR (2 holes)  
29. 3V-3266 [1] TUBE ASSEM.  
30. 1P-5761 [2] FLANGE  
  1P-3704 [1] SEAL  
31. 0T-0768 [4] BOLT  
32. 3V-6190 [1] TUBE ASSEM.  
    (Includes)
33. 9S-4181 [1] PLUG  
  7M-8485 [1] SEAL  
34. 3K-1470 [2] SPACER  
  H   ORDER BY THE CENTIMETRE
  J   ORDER BY THE METRE
 

Information:

Caterpillar Parts SIS Catalog 988B :

VALVE GP-PITCH RELIEF
8J-3630 VALVE GP-PITCH RELIEF
VALVE GP-CONTROL
8J-2292 VALVE GP-CONTROL
VALVE GP-RELIEF
8J-2312 VALVE GP-RELIEF
VALVE GP-RELIEF
8J-2312 VALVE GP-RELIEF
VALVE GP-SELECTOR
8J-2602 VALVE GP-SELECTOR
VALVE GP-PRESSURE REDUCING
1U-1100 VALVE GP-PRESSURE REDUCING
VALVE GP-CONTROL
1U-2010 VALVE GP-CONTROL
VALVE & LINES GP
7V-0366 VALVE & LINES GP
VALVE GP
3G-3310 VALVE GP
VALVE GP
8J-5792 VALVE GP
VALVE GP-CONTROL
8J-2292 VALVE GP-CONTROL
CONTROL VALVE GROUP
8J-2294 CONTROL VALVE GROUP
CONTROL VALVE GROUP
9J-4086 CONTROL VALVE GROUP
LINES GP-GREASE
1V-4919 LINES GP-GREASE
LINES GP-FRONT HYDRAULIC
3V-0726 LINES GP-FRONT HYDRAULIC
LINES GP-FRONT HYDRAULIC
3V-0726 LINES GP-FRONT HYDRAULIC

Truck sale:

Caterpillar 988B
 
Caterpillar 988B
- Wheel Loaders
N C MACHINERY CO.
Caterpillar 988B, Wheel Loaders, Construction
47,951 
Caterpillar 988B, Wheel Loaders, Construction
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TOROMONT CAT
Caterpillar 988B, Wheel Loaders, Construction
 
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CGT - COMPAGNIA GENERALE TRATTORI
Caterpillar 988B, Wheel Loaders, Construction
63,246 
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- Wheel loaders

Caterpillar 988B, Wheel Loaders, Construction
 
Caterpillar 988B, Wheel Loaders, Construction
- Wheel Loaders
CGT - COMPAGNIA GENERALE TRATTORI
Italy
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