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7J5233 CONTROL VALVE GROUP Serial No. 50S1-Up Part of Bulldozer Control shown on Page 159. 8J2419 Valve parts are shown on Page 163 518


HYDRAULIC SYSTEM
VALVE GP-CONTROL
OPERATOR STATION
CONTROL GP-HYDRAULIC
HYDRAULIC SYSTEM
VALVE GP-CONTROL
FRAME AND BODY
GUARD GP
HYDRAULIC SYSTEM
LINES GP-BULLDOZER
FRAME AND BODY
GUARD GP
IMPLEMENTS
BULLDOZER GP
HYDRAULIC SYSTEM
CYLINDER GP

WHEEL SKIDDER 518 WHEEL SKIDDER 50S
 518 SKIDDER 50S00001-00596 (MACHINE) UEG0597S 518 50S   (1971)

HYDRAULIC SYSTEM

VALVE GP-CONTROL
BANK VALVE GROUP
8J-1873 BANK VALVE GROUP
VALVE GP-CONTROL
8J-7242 VALVE GP-CONTROL
VALVE GP-CONTROL
8J-7243 VALVE GP-CONTROL
VALVE GP-CONTROL
8J-7243 VALVE GP-CONTROL
VALVE GP-CONTROL
8J-7244 VALVE GP-CONTROL
VALVE GP
7J-5233 VALVE GP
VALVE GP-CONTROL
8J-1871 VALVE GP-CONTROL
VALVE GP-CONTROL
8J-2419 VALVE GP-CONTROL
BANK VALVE GROUP
8J-1874 BANK VALVE GROUP
CONTROL VALVE GROUP
8J-7255 CONTROL VALVE GROUP
 

#UEG0597S0290
 

7J-5233: VALVE GP

7J5233 CONTROL VALVE GROUP
Serial No. 50S1-Up
Part of Bulldozer Control shown on Page 159. 8J2419 Valve parts are shown on Page 163
c141261 UEG0597S
7J5233 VALVE GP Parts scheme
  For full view, you need register

Parts for your 518 WHEEL SKIDDER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8J-2419 Y [1] VALVE GROUP  
    (Separate Illustration)
2. 8J-2411 [1] PLATE  
3. 5K-9090 [2] SEAL  
4. 4K-4986 [1] SEAL  
5. 0S-1590 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
6. 6L-8355 C [1] PLUG  
7. 8J-2387 [1] CARTRIDGE ASSEM.  
8. 4K-1388 [1] SEAL  
9. 4F-9325 [1] GASKET  
10. 8J-2413 [1] SEAL  
11. 8J-2414 [1] WASHER  
12. 5H-6005 [1] SEAL  
13. 8J-2415 [1] WASHER  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0597S0291
 

9K-1824: CONTROL GP-BULLDOZER

BULLDOZER CONTROL (9K1824 N/S)
Effective with Serial No. 55U1
8J1871 Control Valve parts are shown on Page 162
c114472 UEG0597S
9K1824 CONTROL GP-BULLDOZER Parts scheme
  For full view, you need register

Parts for your 518 WHEEL SKIDDER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4J-5267 [1] SEAL  
2. 7J-9277 [1] ADAPTER  
3. 1D-4707 [3] BOLT  
  3B-4507 [3] LOCKWASHER  
4. 8J-1871 [1] VALVE GROUP  
    (See Separate Illustration)
5. 7K-5770 [1] SHAFT ASSEM.  
6. 1L-8497 [1] RING  
7. 0S-0107 [1] WASHER  
8. 6K-8088 [2] BEARING  
9. 2A-1736 [1] HANDLE  
10. 7K-5767 [1] LEVER ASSEM.  
  8F-0513 [1] BUSHING  
11. 8S-6377 [1] PIN (Lock)  
12. 1J-4384 [1] PIN  
13. 1F-5403 [1] END  
14. 5B-9079 [1] NUT  
15. 1A-2029 [3] BOLT  
  3B-4506 [3] LOCKWASHER  
16. 7K-5773 [1] ROD  
  Y   SEPARATE ILLUSTRATION
 

#UEG0597S0292
 

8J-1871: VALVE GP-CONTROL

8J1871 CONTROL VALVE GROUP
Serial No. 55U1-Up
Part of Bulldozer Control shown on Page 161
c141253 UEG0597S
8J1871 VALVE GP-CONTROL Parts scheme
  For full view, you need register

Parts for your 518 WHEEL SKIDDER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5K-9090 [2] SEAL  
2. 4K-4986 [1] SEAL  
3. 0S-1590 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
4. 8J-6749 [1] PLATE  
5. 8J-2419 [1] VALVE GROUP  
    (Separate Illustration)
6. 8J-2387 [1] CARTRIDGE ASSEM.  
7. 8J-2413 [1] SEAL  
8. 8J-2414 [1] WASHER  
9. 5H-6005 [1] SEAL  
10. 8J-2415 [1] WASHER  
11. 4K-1388 [1] SEAL  
12. 4F-9325 [1] GASKET  
  Y   SEPARATE ILLUSTRATION
 

#UEG0597S0293
 

8J-2419: VALVE GP-CONTROL

8J2419 VALVE GROUP
Part of 7J5233 and 8J1871 Control Valve Groups shown on Pages 160 and 162
c929843 UEG0597S
8J2419 VALVE GP-CONTROL Parts scheme
  For full view, you need register

Parts for your 518 WHEEL SKIDDER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4K-1388 [1] SEAL  
2. 8J-2409 [1] PLUG  
3. 8J-2407 [1] SPRING  
4. 8J-2408 [1] POPPET  
5. 4B-1323 [4] SCREW  
  8J-2418 [4] LOCKWASHER  
6. 8J-2395 [2] COLLAR  
7. 8J-2410 [1] DIAPHRAGM  
8. 1L-0509 [1] SCREW  
  8J-2564 [1] WASHER  
9. 8J-2396 [1] SPRING  
10. 8J-2416 [1] COVER  
11. 8J-2397 [1] COLLAR  
12. 6K-5974 C [2] SEAL  
13. 6L-8355 C [1] PLUG  
14. 4B-3057 C [1] PIN  
  7H-9737 C [1] COTTER PIN  
  C   INDICATES CHANGE
 

#UEG0597S0294
 

7K-8746: GUARD GP-HOSE

7K8746 BULLDOZER LINES GUARD GROUP
c112600 UEG0597S
7K8746 GUARD GP-HOSE Parts scheme
  For full view, you need register

Parts for your 518 WHEEL SKIDDER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8K-5685 [1] GUARD ASSEM. (R.H.)  
  8K-5686 [1] GUARD ASSEM. (L.H.)  
2. 2H-3855 [4] BOLT  
3. 3B-4508 [8] LOCKWASHER  
4. 0S-1595 [4] BOLT  
 

#UEG0597S0295
 

7K-8747: BULLDOZER LINES GROUP

7K8747 BULLDOZER LINES GROUP
Serial No. 50S1 to 50S273 inclusive
AS VIEWED FROM FRONT RIGHT HAND SIDE OF MACHINE
c163170 UEG0597S
7K8747 BULLDOZER LINES GROUP Parts scheme
  For full view, you need register

Parts for your 518 WHEEL SKIDDER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7K-8729 [1] TUBE ASSEM.  
2. 7J-7187 [2] FITTING  
  4K-1388 [2] SEAL  
3. 7K-8730 [1] TUBE ASSEM.  
4. 5D-4263 [2] ADAPTER  
  2M-9780 [1] SEAL  
5. 7K-8737 [1] TUBE ASSEM.  
6. 4B-4284 [8] WASHER  
7. 7F-2060 [4] NUT  
8. 7K-8711 C [1] HOSE ASSEM.  
    (Includes)
  1P-4899 [1] COUPLING ASSEM. (90 degrees)  
9. 3S-8606 [2] SLEEVE  
10. 5P-0179 CH HOSE 61.72 cm(24.30 in)  
11. 9S-9725 [1] COUPLING ASSEM. (60 degrees)  
12. 7K-8731 C [1] HOSE ASSEM.  
    (Includes)
  1P-1719 [1] COUPLING ASSEM. (90 degrees)  
13. 3S-8606 [2] SLEEVE  
14. 5P-0179 CH HOSE 61.72 cm(24.30 in.)  
15. 9S-9725 [1] COUPLING ASSEM. (60 degrees)  
16. 6K-3879 [2] ELBOW  
17. 0S-1595 [2] BOLT  
  1D-4719 [2] NUT  
18. 3B-4508 [4] LOCKWASHER  
19. 7B-3235 [2] BOLT  
20. 8K-9176 [4] CLAMP  
21. 7K-8735 [1] TUBE ASSEM.  
22. 8K-9178 [1] TUBE ASSEM.  
23. 8K-9177 [1] TUBE ASSEM.  
24. 7K-8712 C [1] HOSE ASSEM.  
    (Includes)
  3S-8606 [2] SLEEVE  
25. 9S-9725 [1] COUPLING ASSEM. (60 degrees)  
26. 5P-0179 CH HOSE 61.72 cm(24.30 in.)  
27. 1P-4899 [1] COUPLING ASSEM. (90 degrees)  
28. 7K-8732 [1] HOSE ASSEM.  
    (Includes)
  9S-9725 [1] COUPLING ASSEM. (60 degrees)  
29. 3S-8606 [2] SLEEVE  
30. 5P-0179 CH HOSE 61.72 cm(24.30 in.)  
31. 1P-1719 [1] COUPLING ASSEM. (90 degrees)  
32. 7K-8725 [1] TUBE ASSEM.  
33. 7K-8734 [1] TUBE ASSEM.  
  C   INDICATES CHANGE
  H   ORDER BY THE CENTIMETRE
 

#UEG0597S0296
 

7K-8747: BULLDOZER LINES GROUP

7K8747 BULLDOZER LINES GROUP
Serial No. 50S274-Up and 55U1-Up
AS VIEWED FROM FRONT RIGHT HAND SIDE OF MACHINE
c163171 UEG0597S
7K8747 BULLDOZER LINES GROUP Parts scheme
  For full view, you need register

Parts for your 518 WHEEL SKIDDER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7K-8729 [1] TUBE ASSEM.  
2. 7J-7187 [2] FITTING  
  4K-1388 [2] SEAL  
3. 7K-8730 [1] TUBE ASSEM.  
4. 9M-4584 [2] CONNECTOR  
5. 7K-8737 [1] TUBE ASSEM.  
6. 4B-4284 [8] WASHER  
7. 7F-2060 [4] NUT  
8. 7K-8711 C [1] HOSE ASSEM.  
    (Includes)
  1P-4899 [1] COUPLING ASSEM. (90 degrees)  
9. 3S-8606 [2] SLEEVE  
10. 5P-0179 HOSE 61.72 cm(24.30 in.)  
11. 9S-9725 [1] COUPLING ASSEM. (60 degrees)  
12. 7K-8731 [1] HOSE ASSEM.  
    (Includes)
  1P-1719 [1] COUPLING ASSEM. (90 degrees)  
13. 3S-8606 [2] SLEEVE  
14. 5P-0179 C HOSE 61.72 cm(24.30 in.)  
15. 9S-9725 [1] COUPLING ASSEM. (60 degrees)  
16. 030-7949 C [2] ELBOW  
17. 0S-1595 [4] BOLT  
  1D-4719 [2] NUT  
18. 3B-4508 [4] LOCKWASHER  
19. 2M-9780 C [4] SEAL  
20. 8K-9176 [4] CLAMP  
21. 7K-8735 [1] TUBE ASSEM.  
22. 8K-9178 [1] TUBE ASSEM.  
23. 8K-9177 [1] TUBE ASSEM.  
24. 7K-8712 C [1] HOSE ASSEM.  
    (Includes)
  3S-8606 [2] SLEEVE  
25. 9S-9725 [1] COUPLING ASSEM. (60 degrees)  
26. 5P-0179 CH HOSE 61.72 cm(24.30 in.)  
27. 1P-4899 [1] COUPLING ASSEM. (90 degrees)  
28. 7K-8732 C [1] HOSE ASSEM.  
    (Includes)
  9S-9725 [1] COUPLING ASSEM. (60 degrees)  
29. 3S-8606 [2] SLEEVE  
30. 5P-0179 CH HOSE 61.72 cm(24.30 in.)  
31. 1P-1719 [1] COUPLING ASSEM. (90 degrees)  
32. 7K-8725 [1] TUBE ASSEM.  
33. 7K-8734 [1] TUBE ASSEM.  
  C   INDICATES CHANGE
  H   ORDER BY THE CENTIMETRE
 

#UEG0597S0297
 

8K-6626: GUARD GP-BULLDOZER CYLINDER

8K6626 BULLDOZER CYLINDER GUARD GROUP
Serial No. 50S541-Up and 55U148-Up
Refer also to Page 172 for special parts
c158624 UEG0597S
8K6626 GUARD GP-BULLDOZER CYLINDER Parts scheme
  For full view, you need register

Parts for your 518 WHEEL SKIDDER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9K-8270 C [1] BRACKET ASSEM. (R.H.)  
  9K-8271 C [1] BRACKET ASSEM. (L.H.)  
2. 2V-0535 C [2] CABLE ASSEM.  
3. 5B-5473 [2] BOLT  
  9B-1948 [2] SPACER  
  6K-3632 C [2] NUT  
  4B-4285 C [4] WASHER  
  C   INDICATES CHANGE
 

#UEG0597S0298
 

7J-4390: BULLDOZER GROUP

7J4390 BULLDOZER GROUP
c112524 UEG0597S
7J4390 BULLDOZER GROUP Parts scheme
  For full view, you need register

Parts for your 518 WHEEL SKIDDER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. [2] CAP  
2. [4] BOLT  
  [4] NUT  
3. [2] BEARING  
4. [2] RETAINER  
5. [2] PIN  
6. [1] PLATE  
7. [2] BOLT  
  [2] LOCKWASHER  
 

#UEG0597S0299
 

7J-8925: CYLINDER GP-LIFT

7J8925 LIFT CYLINDER GROUP--4.00" Bore x 14.00" Stroke--2 Required
c207318 UEG0597S
7J8925 CYLINDER GP-LIFT Parts scheme
  For full view, you need register

Parts for your 518 WHEEL SKIDDER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7J-6469 [1] PISTON  
2. 7J-8926 R [1] CYLINDER ASSEM.  
3. 8J-0278 [1] BEARING  
4. 6H-3609 [1] BOSS  
5. 1H-8128 [1] SEAL  
6. 2K-6830 [1] RING  
7. 7J-6462 [1] HEAD  
8. 7J-6461 [1] CROWN  
9. 8J-1564 [1] ROD ASSEM.  
10. 8J-0001 [1] BEARING  
11. 1K-6981 [1] SEAL  
12. 5J-8200 [1] SEAL  
13. 7J-5639 [1] BOLT  
14. 6J-6917 [1] SEAL  
15. 5J-5402 [1] SEAL ASSEM.  
  5J-5400 [1] SEAL  
16. 6J-2797 [1] RING  
17. 8J-7415 C [1] WASHER  
18. 8J-5912 C [1] SETSCREW  
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

Information:

Specifications
Winch Valve Group
518 SKIDDER WINCH
Priority Valve Group<BR> 7T5052
518 SKIDDER WINCH
Tool Operating Manual
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
Service Magazine
Warning: Use Correct Seal On Seat Assembly For Valve Group In Steering Valve Group{4307,4312,4322}
1980/12/01
New Transmission Valve Groups Increase Winch Line Pull When Transmission Is In Neutral{3150,3152,3157,3167,3100}
1978/02/20
New Valve Guide Available{1104}
1995/12/25
The 6V-8633 Connector Has Changed {5057, 7553}
2005/11/28

Caterpillar Parts SIS Catalog 518 :

CONTROL GP-BULLDOZER
7K-5674 CONTROL GP-BULLDOZER
FAIRLEAD
9K-4936 FAIRLEAD
FAIRLEAD
9K-4936 FAIRLEAD
FAIRLEAD
7K-8958 FAIRLEAD
FRAME GP-LOGGING
7K-9892 FRAME GP-LOGGING
VALVE GP
8K-5703 VALVE GP
LINES GP-WINCH
8K-5702 LINES GP-WINCH
9K-0739 WINCH AS
CONTROL GP-BULLDOZER
9K-1824 CONTROL GP-BULLDOZER
VALVE GP-CONTROL
8J-1871 VALVE GP-CONTROL
VALVE GP-CONTROL
8J-2419 VALVE GP-CONTROL
GUARD GP-HOSE
7K-8746 GUARD GP-HOSE
BULLDOZER LINES GROUP
7K-8747 BULLDOZER LINES GROUP
BULLDOZER LINES GROUP
7K-8747 BULLDOZER LINES GROUP
GUARD GP-BULLDOZER CYLINDER
8K-6626 GUARD GP-BULLDOZER CYLINDER
BULLDOZER GROUP
7J-4390 BULLDOZER GROUP

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