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3P2807 TRANSMISSION HYDRAULIC CONTROL GROUP IF TRANSMISSION IS SERIALIZED USE TRANSMISSION SERIAL NO. OTHERWISE USE VEHICLE SERIAL NO. Serial No. 61M3953 to 61M7355 inclusive & Test No. 327-Up. Transmission Serial No. 2EA1-Up Part of 8P5956 Transmission Arrangement shown on Page 153B. 8P4301 and 3P841 Valve parts are shown on Pages 164A & 164B 12G


POWER TRAIN
CONTROL GP-TRANSMISSION HYD
HYDRAULIC SYSTEM
VALVE GP-CONTROL
VALVE GP
VALVE GP-CONTROL
VALVE GP
POWER TRAIN
VALVE GP
VALVE GP-PILOT
VALVE GP-SELECTOR & PRESS CONT
HYDRAULIC SYSTEM
VALVE GP

MOTOR GRADER 12G MOTOR GRADER 61M
 12G MOTOR GRADER 61M02629-07710 (MACHINE) POWERED BY 3306 ENGINE SEBP1076 12G 61M   (1973)

POWER TRAIN

CONTROL GP-TRANSMISSION HYD
CONTROL GP-TRANSMISSION HYD
3P-2807 CONTROL GP-TRANSMISSION HYD
CONTROL GP-TRANSMISSION HYD
3P-2807 CONTROL GP-TRANSMISSION HYD
 

#SEBP10760420
 

3P-2807: CONTROL GP-TRANSMISSION HYD

3P2807 TRANSMISSION HYDRAULIC CONTROL GROUP
IF TRANSMISSION IS SERIALIZED USE TRANSMISSION SERIAL NO. OTHERWISE USE VEHICLE SERIAL NO.
Serial No. 61M3953 to 61M7355 inclusive & Test No. 327-Up. Transmission Serial No. 2EA1-Up
Part of 8P5956 Transmission Arrangement shown on Page 153B. 8P4301 and 3P841 Valve parts are shown on Pages 164A & 164B
c211783 SEBP1076
3P2807 CONTROL GP-TRANSMISSION HYD Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3P-0841 Y [1] VALVE GROUP  
    (Separate Illustration)
2. 5F-6044 [2] BOLT  
3. 5M-2894 [4] WASHER  
4. 8P-4301 CY [1] VALVE GROUP  
    (Separate Illustration)
5. 0L-1352 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
6. 6F-6673 [1] SEAL  
7. 5F-7054 [1] SEAL  
8. 2J-0157 [2] SEAL  
9. 2H-3932 [3] SEAL  
10. 4F-0411 [2] BOLT  
11. 3P-2781 [1] PLATE  
12. 1T-0416 [1] BOLT  
13. 3P-0868 [1] SLEEVE  
14. 4M-8303 [8] SEAL  
15. 3P-0869 [1] SLEEVE  
16. 3P-0870 [2] SLEEVE  
17. 6L-4783 [2] BOLT  
18. 3P-2777 [1] PLATE  
19. 6P-5095 [2] LINK  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10760421
 

3P-0840: RELIEF CONTROL VALVE GROUP

3P840 RELIEF CONTROL VALVE GROUP--Replaced by 2P5811 shown on Page 164
Serial No. 61M2629 to 61M3952 inclusive and Test No. 907-Up. Part of 3P2807
Hydraulic Control Group shown on Page 162. 2P4548 Valve parts are shown on Page 166
c207454 SEBP1076
3P0840 RELIEF CONTROL VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1P-0562 [1] VALVE ASSEM. (relief)  
    (Includes)
  4S-5982 [1] VALVE  
2. 9M-4313 [1] POPPET  
3. 8M-2537 [1] RETAINER  
4. 1L-3162 [1] RING  
5. 5M-9548 [1] SPRING  
6. 6F-6673 [3] SEAL  
7. 2S-1415 [1] SPRING  
9. 2P-5677 [1] SPRING  
10. 9S-4191 [4] PLUG  
  3J-1907 [4] SEAL  
11. 6P-4917 C [2] PIN  
12. 2P-4548 Y [2] VALVE ASSEM.  
    (Separate Illustration)
13. 3H-1461 [2] SEAL  
14. 1A-2029 C [10] BOLT  
  3B-4506 [10] LOCKWASHER  
15. 2S-2878 [5] COVER  
16. 7M-1396 [1] SPACER 1.57mm(.062 in.) thick  
  7M-1397 [1] SPACER .914mm(.036 in.) thick  
  5M-3492 [4] SPACER .254mm(.010 in.) thick  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10760422
 

2P-5811: VALVE GP

2P5811 RELIEF CONTROL VALVE GROUP--Field Installation
2P4548 Valve parts are shown on Page 166
c207409 SEBP1076
2P5811 VALVE GP Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1P-0562 [1] VALVE ASSEM.  
    (Includes)
  4S-5982 [1] VALVE  
2. 9M-4313 [1] POPPET  
3. 8M-2537 [1] RETAINER  
4. 1L-3162 [1] RING  
5. 5M-9548 [1] SPRING  
6. 6F-6673 [3] SEAL  
7. 2S-1415 [1] SPRING  
8. 2S-1413 [1] SPRING  
9. 2P-5677 [1] SPRING  
10. 9S-4191 [4] PLUG  
  3J-1907 [4] SEAL  
11. 6P-4917 C [2] PIN  
12. 2P-4548 Y [2] VALVE ASSEM.  
    (Separate Illustration)
13. 3H-1461 [2] SEAL  
13. 3H-1461 [2] SEAL  
14. 1A-2029 [10] BOLT  
  3B-4506 [10] LOCKWASHER  
15. 2S-2878 [5] COVER  
16. 7M-1396 [1] SPACER 1.57 mm(.062 in.) thick  
  7M-1397 [1] SPACER .914 mm(.036 in.) thick  
  5M-3492 [4] SPACER .254 mm(.01 in.) thick  
17. 3P-4566 [1] PLATE (identification)  
  7B-3028 [1] SCREW  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10760423
 

8P-4301: VALVE GP-CONTROL

8P4301 RELIEF CONTROL VALVE GROUP--Replaced by 2P5811 shown on Page 164
Serial No. 61M3953-Up and Test No. 327-Up. Part of 3P2807 Transmission Hydraulic
Control Group shown on Page 162A. 2P4548 Valve parts are shown on Page 166
c211784 SEBP1076
8P4301 VALVE GP-CONTROL Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1P-0562 [1] VALVE ASSEM. (relief)  
    (Includes)
  4S-5982 [1] VALVE  
2. 9M-4313 [1] POPPET  
3. 8M-2537 [1] RETAINER  
4. 1L-3162 [1] RING  
5. 5M-9548 [1] SPRING  
6. 6F-6673 [3] SEAL  
7. 8P-2893 [1] SPRING  
9. 2P-5677 [1] SPRING  
10. 9S-4191 [3] PLUG  
  3J-1907 [3] SEAL  
11. 6P-4917 [2] PIN  
12. 2P-4548 Y [2] VALVE ASSEM.  
    (Separate Illustration)
13. 3H-1461 [2] SEAL  
14. 1A-2029 [10] BOLT  
  3B-4506 [10] LOCKWASHER  
15. 2S-2878 [5] COVER  
16. 7M-1396 [1] SPACER 1.57mm(.062 in.) thick  
  7M-1397 [1] SPACER .914mm(.036 in.) thick  
  5M-3492 [4] SPACER .254mm(.010 in.) thick  
  Y   SEPARATE ILLUSTRATION
 

#SEBP10760424
 

3P-0841: VALVE GP

3P841 PILOT SELECTOR AND PRESSURE CONTROL VALVE GROUP
Serial No. 61M3844 to 61M3853 and 61M3856-Up and Test No. 7815-Up
Part of 3P2807 Transmission Control Group shown on Page 162A
3P842, 3P843, 2P5814 and 8P1101 Valve parts are shown on Pages 166, 167, 168 and 168A
c212147 SEBP1076
3P0841 VALVE GP Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3P-0842 Y [1] VALVE GROUP  
    (Separate Illustration)
2. 3P-0208 [8] BOLT  
3. 9M-1974 [16] WASHER  
4. 9M-4289 [4] BOLT  
5. 3P-0864 [1] COVER ASSEM.  
    (Includes)
6. 5M-6214 C [1] PLUG  
7. 3P-0866 [1] POPPET  
8. 3P-0867 [1] RETAINER  
  4D-1322 [1] RING  
9. 3J-6956 [1] SPRING  
10. 4S-5845 [4] BOLT  
12. 3P-2870 [1] MANIFOLD ASSEM.  
    (Includes)
14. 9M-6803 [2] DOWEL  
15. 8M-8489 [2] DOWEL  
16. 3P-0843 Y [1] VALVE GROUP  
    (Separate Illustration)
17. 8P-1101 YC [1] VALVE GROUP  
    (Separate Illustration)
18. 2P-5814 Y [1] VALVE GROUP  
    (Separate Illustration)
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10760425
 

3P-0841: VALVE GP

3P841 PILOT SELECTOR AND PRESSURE CONTROL VALVE GROUP
Part of 3P2807 Transmission Hydraulic Control Group shown on Page 162
3P842, 3P843, 2P5814 and 6P3227 Valve parts are shown on Pages 166 through 169
c202554 SEBP1076
3P0841 VALVE GP Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3P-0842 Y [1] VALVE GROUP  
    (Separate Illustration)
2. 3P-0208 [8] BOLT  
3. 9M-1974 [16] WASHER  
4. 9M-4289 [4] BOLT  
5. 3P-0864 [1] COVER ASSEM.  
    (Includes)
6. 5M-6214 [2] PLUG  
7. 3P-0866 [1] POPPET  
8. 3P-0867 [1] RETAINER  
  4D-1322 [1] RING  
9. 3J-6956 [1] SPRING  
10. 4S-5845 [4] BOLT  
12. 3P-2870 [1] MANIFOLD ASSEM.  
    (Includes)
13. 5M-6214 [5] PLUG  
14. 9M-6803 [2] DOWEL  
15. 8M-8489 [2] DOWEL  
16. 3P-0843 [1] VALVE GROUP  
17. 6P-3227 C [1] VALVE GROUP  
18. 2P-5814 Y [1] VALVE GROUP  
    (Separate Illustration)
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10760426
 

2P-4548: VALVE AS

2P4548 VALVE ASSEMBLY
Part of 3P840 and 2P5811 Valve Groups shown on Pages 163 & 164
c119689 SEBP1076
2P4548 VALVE AS Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3P-7686 [1] COLLAR-VALVE SEAT  
2. 9L-0672 [1] VALVE-CHECK  
3. 3P-7685 [1] SPRING  
4. 3P-8006 [1] RETAINER  
5. 1P-5274 [1] PIN-VALVE SPRING  
6. 3H-1156 [1] PIN  
 

#SEBP10760427
 

3P-0842: VALVE GP-PILOT

3P842 PILOT VALVE GROUP
Part of 3P841 Valve Group shown on Page 165
c308873 SEBP1076
3P0842 VALVE GP-PILOT Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2P-7030 [1] SPOOL ASSEM.  
    (Includes)
2. 2A-3746 [1] PLUG  
3. 6H-2948 [1] PIN  
4. 2P-4503 [1] PLUG  
5. 7S-4607 [2] DETENT ASSEM.  
6. 8M-8489 [2] DOWEL  
7. 2H-6265 [1] PIN  
8. 3P-4362 [1] STOP  
  3K-0360 [1] SEAL  
 

#SEBP10760428
 

3P-0843: VALVE GP-SELECTOR & PRESS CONT

3P843 SELECTOR AND PRESSURE CONTROL VALVE GROUP
Part of 3P841 Valve Group shown on Page 165
c207455 SEBP1076
3P0843 VALVE GP-SELECTOR & PRESS CONT Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2P-4500 [1] SPRING (outer)  
2. 2P-4397 [1] SPACER  
3. 2P-4499 [1] SPRING (inner)  
4. 7M-1396 [1] SPACER 1.58 mm(.062 in.) thick  
  7M-1397 [1] SPACER 0.92 mm(.036 in.) thick  
  5M-3492 [4] SPACER 0.26 mm(.010 in.) thick  
    (Use as Required)
5. 6P-4700 C [1] SPOOL ASSEM.  
    (Includes)
  5M-8009 [1] PIN  
6. 1S-2121 [1] PLUNGER  
7. 4M-2381 [1] SPRING  
8. 1S-1636 [1] RETAINER  
  1S-1638 [1] RING  
9. 5M-2504 [1] SLUG  
10. 2P-9186 [2] WASHER  
11. 3P-1798 [1] COVER  
12. 1L-3769 [1] RING  
13. 6F-6673 [1] SEAL  
14. 6L-4783 [3] BOLT  
15. 8H-5244 [1] DOWEL  
16. 5S-7906 [1] STOP  
17. 2P-4486 [2] SPOOL  
18. 2P-4501 [3] SPRING  
19. 2P-4502 [1] COVER  
20. 2P-4372 [1] SPOOL  
21. 3D-4245 [2] SEAL  
22. [5] BOLT  
23. 2P-4396 [1] PISTON  
  C   INDICATES CHANGE
 

#SEBP10760429
 

2P-5814: VALVE GP

2P5814 SELECTOR AND PRESSURE CONTROL VALVE GROUP
Part of 3P841 Valve Group shown on Page 165
c308874 SEBP1076
2P5814 VALVE GP Parts scheme
  For full view, you need register

Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1P-9685 [1] SPOOL  
2. 5S-7906 [1] STOP  
3. 8H-5244 [1] DOWEL  
4. 2P-4529 [1] SPOOL-REDUCING  
5. 1T-0416 [4] BOLT  
6. 2P-5700 [1] SPRING (OUTER)  
7. 2P-5701 [1] SPRING (INNER)  
8. 2P-5803 [1] PLATE  
9. 2B-0858 C [1] PLUG-PIPE  
10. 3J-1907 C [1] SEAL  
11. 3P-2706 [1] PLATE  
12. 4B-9782 [1] BALL  
13. 9S-4191 C [1] PLUG-O-RING  
  C   CHANGE FROM PREVIOUS TYPE
 

Information:

Caterpillar Parts SIS Catalog 12G :

CONTROL GP-TRANSMISSION HYD
3P-2807 CONTROL GP-TRANSMISSION HYD
8D-7360 CONTROL GP-TRANSMISSION
CONTROL GP-TRANSMISSION
8D-7360 CONTROL GP-TRANSMISSION
8D-7360 CONTROL GP-TRANSMISSION
CONTROL GP-TRANSMISSION
8D-7360 CONTROL GP-TRANSMISSION
8D-7360 CONTROL GP-TRANSMISSION
CONTROL GP-TRANSMISSION
8D-7360 CONTROL GP-TRANSMISSION
CASE AS-TMSN
2P-9203 CASE AS-TMSN
RELIEF CONTROL VALVE GROUP
3P-0840 RELIEF CONTROL VALVE GROUP
VALVE GP
2P-5811 VALVE GP
VALVE GP-CONTROL
8P-4301 VALVE GP-CONTROL
VALVE GP
3P-0841 VALVE GP
VALVE GP
3P-0841 VALVE GP
VALVE AS
2P-4548 VALVE AS
VALVE GP-PILOT
3P-0842 VALVE GP-PILOT
VALVE GP-SELECTOR & PRESS CONT
3P-0843 VALVE GP-SELECTOR & PRESS CONT

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