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556-6522 PUMP & MTG GP-MAIN HYDRAULIC S/N FEY1-UP PART OF 556-6437 HYDRAULIC AR 323D3 EXCAVATOR


HYDRAULIC SYSTEM
PUMP GP
FILTER GP
SWIVEL GP
TANK GP
VALVE GP-CONTROL

EXCAVATOR 323D3 EXCAVATOR FEY
 323D3 Excavator FEY00001-UP (MACHINE) POWERED BY C7.1 Engine M0093401 323D3 FEY   (2018)

HYDRAULIC SYSTEM

PUMP GP
COUPLING GP-PUMP
341-5368 COUPLING GP-PUMP
HEAD GP-PUMP
551-6788 HEAD GP-PUMP
PUMP & MTG GP-MAIN HYDRAULIC
556-6522 PUMP & MTG GP-MAIN HYDRAULIC
PUMP GP-GEAR
551-6789 PUMP GP-GEAR
PUMP GP-MAIN HYDRAULIC
524-2648 PUMP GP-MAIN HYDRAULIC
 

#M00934010250
 

556-6522: PUMP & MTG GP-MAIN HYDRAULIC

556-6522 PUMP & MTG GP-MAIN HYDRAULIC
S/N FEY1-UP
PART OF 556-6437 HYDRAULIC AR
i07397762 M0093401
5566522 PUMP & MTG GP-MAIN HYDRAULIC Parts scheme
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Parts for your 323D3 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8T-4186 M [12] BOLT (M10X1.5X40-MM)  
2. 7X-7729 [12] WASHER (11X25X3-MM THK)  
3. 341-5368 Y [1] COUPLING GP-PUMP  
4. 451-2176 [4] WASHER-HARD (22X35X3.5-MM THK)  
5. 524-2648 Y [1] PUMP GP-MAIN HYDRAULIC  
6. 548-4883 [1] FLANGE  
7. 7Y-5217 M [4] BOLT-SOCKET HEAD (M20X2.5X70-MM)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#M00934010251
 

551-6789: PUMP GP-GEAR

551-6789 PUMP GP-GEAR
S/N FEY1-UP
PART OF 524-2648 PUMP GP-MAIN HYDRAULIC
i07397891 M0093401
5516789 PUMP GP-GEAR Parts scheme
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Parts for your 323D3 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 552-7946 [1] PLUNGER  
2. 551-6806 [1] RING  
3. 551-6807 [1] SPRING  
4. 551-6808 [1] SETSCREW  
5. 551-6812 M [1] LOCKNUT (M14X1.5-THD)  
6. 551-6813 [1] SCREEN  
7. 387-4672 [2] BOLT  
8. 6I-0455 M [2] BOLT (M8X1.25X55-MM)  
9. 197-0165 M [4] BOLT (M8X1.25X20-MM)  
10. 110-5525 [1] PLUG  
11. 5I-8775 [1] ADAPTER  
12. 551-6814 [1] RING  
13. 249-6657 [1] SEAL-O-RING  
14. 214-7568 [1] SEAL-O-RING  
15. 206-9295 [1] SEAL-O-RING  
16. 206-9294 [1] SEAL-O-RING  
17. 096-2593 [1] RING-RETAINING  
18. 551-6817 [2] PIN  
  M   METRIC PART
 

#M00934010252
 

524-2648: PUMP GP-MAIN HYDRAULIC

524-2648 PUMP GP-MAIN HYDRAULIC
S/N FEY1-UP
PART OF 556-6522 PUMP & MTG GP-MAIN HYDRAULIC
i07419343 M0093401
5242648 PUMP GP-MAIN HYDRAULIC Parts scheme 5242648 PUMP GP-MAIN HYDRAULIC Parts scheme
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Parts for your 323D3 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 551-6809 [2] PIN AS  
2. 551-6788 Y [2] HEAD GP-PUMP (REGULATOR)  
3. 551-6789 Y [1] PUMP GP-GEAR  
4. 551-6795 Y [1] VALVE GP-SOLENOID (MAIN HYDRAULIC PUMP)  
5. 551-6790 [2] PISTON AS  
6. 551-6791 [1] BARREL AS (RH)  
7. 551-6792 [1] BARREL AS (LH)  
8. 551-6793 [2] SWASHPLATE AS  
9. 551-6794 [2] VALVE AS-CHECK  
10. 247-8966 [2] VALVE AS-CHECK  
    (EACH INCLUDES)
  5H-1472 [1] BALL  
11. 551-6797 [1] SHAFT-DRIVE (REVERSE)  
12. 551-6796 [1] SHAFT-DRIVE (FORWARD)  
13. 551-6798 [1] COUPLING  
14. 551-6799 [2] BEARING-ROLLER  
15. 551-6800 [2] BEARING-NEEDLE  
16. 541-3320 [3] SPACER-BEARING  
17. 541-3318 [2] PLATE-RETAINER  
18. 541-3317 [2] GUIDE-BALL  
19. 551-6801 [18] SPRING-CYLINDER  
20. 541-3312 [2] PLATE  
21. 541-3307 [2] STOPPER  
22. 551-6803 [1] COVER  
23. 551-6804 [2] BODY  
24. 552-7939 [2] SUPPORT AS  
    (EACH INCLUDES)
  371-7201 [4] PLUG  
  551-6802 [1] SUPPORT  
25. 505-1681 [8] BOLT-SOCKET HEAD  
26. 8T-1158 M [4] BOLT-SOCKET HEAD (M8X1.25X20-MM)  
27. 5I-8773 M [2] SETSCREW (M16X2X30-MM)  
28. 9S-4183 [3] PLUG (1-1/16-12-THD)  
29. 371-7201 [18] PLUG  
30. 551-6810 [2] PISTON  
31. 551-6811 [2] STOPPER  
32. 206-9299 [2] SEAL-O-RING  
33. 249-6657 [1] SEAL-O-RING  
34. 095-1723 [4] SEAL-O-RING  
35. 347-6530 [16] SEAL-RECTANGULAR  
36. 206-9292 [2] SEAL-O-RING  
37. 238-5082 [3] SEAL-O-RING  
38. 206-9295 [2] SEAL-O-RING  
39. 551-6815 [1] SEAL  
40. 095-1784 [2] RING-BACKUP  
41. 153-8623 [2] RING-BACKUP  
42. 8T-1757 M [2] NUT (M16X2-THD)  
43. 8T-4131 M [2] NUT (M20X2.5-THD)  
44. 8T-4240 [2] RING-RETAINING  
45. 295-9517 [2] DOWEL  
46. 551-6821 [4] PIN-SPRING  
47. 5I-8772 [2] EYEBOLT  
48. 551-6822 [2] SETSCREW  
49. 551-6823 [1] PLATE-IDENTIFICATION  
50. 7Y-4359 [2] SCREW  
51. 552-7941 [1] BODY AS  
  371-7201 [10] PLUG  
  551-6805 [1] BODY AS  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#M00934010253
 

259-0922: SCREEN GP-HYDRAULIC

259-0922 SCREEN GP-HYDRAULIC -TANK
S/N FEY1-UP
PART OF 507-5950 TANK & FILTER GP-HYDRAULIC
i04915466 M0093401
2590922 SCREEN GP-HYDRAULIC Parts scheme
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Parts for your 323D3 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 259-0918 [1] GUIDE  
2. 095-6639 [1] SPRING  
3. 8T-4133 M [2] NUT (M10X1.5-THD)  
4. 129-7784 [1] ROD  
5. 209-6000 [1] SCREEN AS (HYDRAULIC TANK)  
6. 5H-5672 [1] SEAL-O-RING  
  M   METRIC PART
 

#M00934010254
 

234-4440: SWIVEL GP

234-4440 SWIVEL GP
S/N FEY1-UP
PART OF 543-2703 LINES GP-TRAVEL MOTOR
i04915631 M0093401
2344440 SWIVEL GP Parts scheme
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Parts for your 323D3 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7I-7131 [1] RETAINER  
2. 7Y-4817 [1] COVER  
3. 159-7782 [5] SEAL  
4. 225-4548 [1] HOUSING  
5. 225-4549 [1] ROTOR  
6. 095-1625 [3] SEAL-O-RING  
7. 095-1716 [1] SEAL-O-RING  
8. 453-3454 [2] WASHER-HARD (11X21X2.5-MM THK)  
9. 455-3798 M [6] BOLT (M10X1.5X25-MM)  
10. 8T-6759 [1] PLUG-PIPE  
  M   METRIC PART
 

#M00934010255
 

507-5950: TANK & FILTER GP-HYDRAULIC

507-5950 TANK & FILTER GP-HYDRAULIC
S/N FEY1-UP
210-L (55.5-US GAL)
PART OF 562-9614 TANK & MTG GP-HYDRAULIC
i06682351 M0093401
5075950 TANK & FILTER GP-HYDRAULIC Parts scheme
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Parts for your 323D3 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1U-2827 [1] GUIDE-VALVE  
2. 3K-0360 [1] SEAL-O-RING  
3. 6D-9157 [1] SEAL-O-RING  
4. 6J-2680 [1] SEAL-O-RING  
5. 8J-8782 [1] BODY-DRAIN VALVE  
6. 8J-8783 [1] VALVE-DRAIN  
7. 9J-7031 [1] PLUG-DRAIN  
8. 095-1608 [1] SEAL-O-RING  
9. 158-8987 Y [1] FILTER & VALVE GP-PILOT (HYDRAULIC OIL)  
10. 165-3256 [1] PIPE AS  
11. 207-6403 [1] PLUG  
12. 207-6404 [1] WASHER (49.5X60.5X1.5-MM THK)  
13. 227-0590 [1] BREATHER (HYDRAULIC TANK)  
14. 259-0922 Y [1] SCREEN GP-HYDRAULIC (TANK)  
15. 275-1362 [1] BRACKET  
16. 289-8194 Y [1] FILTER GP-OIL (HYDRAULIC, CASE DRAIN)  
17. 292-7297 [1] SUPPORT AS  
18. 347-6081 Y [1] GAUGE GP-SIGHT (HYDRAULIC OIL LEVEL)  
19. 395-0021 [1] COVER AS  
20. 432-6291 [1] SENSOR-TEMPERATURE (HYDRAULIC OIL)  
21. 451-2182 [4] WASHER-HARD (13.5X25.5X3-MM THK)  
22. 453-3433 M [4] BOLT (M8X1.25X25-MM)  
23. 453-3440 M [4] BOLT (M10X1.5X30-MM)  
24. 453-3447 M [6] BOLT (M12X1.75X40-MM)  
25. 453-3451 [4] WASHER-HARD (8.8X16X2-MM THK)  
26. 453-3454 [13] WASHER-HARD (11X21X2.5-MM THK)  
27. 453-3456 [2] WASHER-HARD (13.5X25.5X5-MM THK)  
28. 457-5821 M [2] BOLT (M10X1.5X35-MM)  
29. 459-1351 [1] TANK AS-HYDRAULIC  
30. 095-1730 [1] SEAL-O-RING  
31. 164-5567 [1] COUPLER AS-QUICK DISCONNECT (MALE)  
  6V-3965 [1] FITTING (QUICK DISCONNECT)  
  214-7568 [1] SEAL-O-RING  
32. 164-5590 [1] VALVE AS-FLUID SAMPLING  
  3J-7354 [1] SEAL-O-RING  
  8C-3446 [1] VALVE-SAMPLING  
33. 188-4140 Y [1] FILTER GP-OIL (HYDRAULIC RETURN)  
34. 4J-0527 [1] SEAL-O-RING  
35. 5C-9553 M [4] BOLT (M6X1X16-MM)  
36. 5M-2057 [1] SEAL-O-RING  
37. 6V-0852 [1] CAP-DUST  
38. 6V-5839 [2] WASHER (11X21X2.5-MM THK)  
39. 7B-3039 [1] SPRING  
40. 8C-3451 [1] CAP-DUST (HYDRAULIC OIL)  
41. 8T-0267 M [2] BOLT-SOCKET HEAD (M6X1X12-MM)  
42. 8T-3298 [1] SEAL-RECTANGULAR  
43. 8T-4136 M [3] BOLT (M10X1.5X25-MM)  
44. 8T-4137 M [6] BOLT (M10X1.5X20-MM)  
45. 9X-8256 [4] WASHER (6.6X12X2-MM THK)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#M00934010256
 

562-9614: TANK & MTG GP-HYDRAULIC

562-9614 TANK & MTG GP-HYDRAULIC
S/N FEY1-UP
210-L (55.5-U.S. GAL)
PART OF 556-6437 HYDRAULIC AR
i07426919 M0093401
5629614 TANK & MTG GP-HYDRAULIC Parts scheme
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Parts for your 323D3 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 085-9310 [6] SPACER (16.6X32X26-MM THK)  
2. 562-9615 Y [1] LINES GP-HYDRAULIC  
3. 447-1707 M [6] BOLT (M16X2X60-MM)  
4. 507-5950 Y [1] TANK & FILTER GP-HYDRAULIC  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#M00934010257
 

255-5713: VALVE & MTG GP-CONTROL

255-5713 VALVE & MTG GP-CONTROL -AUXILIARY
S/N FEY1-UP
PART OF 559-6091 CONTROL AR-AUXILIARY
i06199711 M0093401
2555713 VALVE & MTG GP-CONTROL Parts scheme
  For full view, you need register

Parts for your 323D3 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 259-7378 Y [1] VALVE GP-CONTROL (AUXILIARY)  
2. 447-1706 M [5] BOLT (M16X2X130-MM)  
3. 4J-8998 [2] SEAL-O-RING  
4. 1P-3702 [2] SEAL-RECTANGULAR  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#M00934010258
 

244-8400: VALVE GP-CONTROL

244-8400 VALVE GP-CONTROL -WITHOUT COVERS, HOUSINGS
S/N FEY1-UP
PART OF 259-7378 VALVE GP-CONTROL
i06199720 M0093401
2448400 VALVE GP-CONTROL Parts scheme
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Parts for your 323D3 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 104-7293 [1] SPRING  
2. Z [1] STEM-AUXILIARY  
3. Z [1] BLOCK  
4. 153-5276 M [1] BOLT-SPECIAL (M10X1.5X82-MM)  
5. 6E-2271 [2] RETAINER  
  M   METRIC PART
  Z   NOT SERVICED SEPARATELY
 

#M00934010259
 

259-7378: VALVE GP-CONTROL

259-7378 VALVE GP-CONTROL -AUXILIARY
S/N FEY1-UP
PART OF 255-5713 VALVE & MTG GP-CONTROL
i06199716 M0093401
2597378 VALVE GP-CONTROL Parts scheme
  For full view, you need register

Parts for your 323D3 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8T-4195 M [12] BOLT (M10X1.5X30-MM)  
2. 4J-8998 [2] SEAL-O-RING  
3. 6E-5731 [1] VALVE (LOAD CHECK)  
4. 7I-1248 [1] SPRING  
5. 171-0150 [2] COVER  
6. 236-6419 [1] PLUG  
7. 244-8400 Y [1] VALVE GP-CONTROL (WITHOUT COVERS, HOUSINGS)  
8. 255-5661 Y [2] VALVE GP-RELIEF (LINE)  
9. 8T-4121 [4] WASHER-HARD (11X21X2.5-MM THK)  
10. 095-1590 [1] SEAL-O-RING  
11. 095-1787 [1] RING-BACKUP  
12. 158-8159 [1] HOUSING  
13. 1P-3702 [4] SEAL-RECTANGULAR  
14. 6E-2274 [1] COVER  
15. 6V-5597 [2] SEAL-O-RING  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

Information:

Special Instruction
Repair Process for Hydraulic Gear Pumps {5073}
Repair Process for Hydraulic Gear Pumps {5073}
Specifications
Gear Pump
320D3 and 323D3 Excavators Machine System Specifications
Main Hydraulic Pump
320D3 and 323D3 Excavators Machine System Specifications
Pump Head (Main)
320D3 and 323D3 Excavators Machine System Specifications
Systems Operation
Gear Pump (Pilot)
320D3 and 323D3 Excavators Systems
Negative Flow Control System
320D3 and 323D3 Excavators Systems
Main Hydraulic Pump
320D3 and 323D3 Excavators Systems
Pump Control (Main Hydraulic) - Main Pump Regulator
320D3 and 323D3 Excavators Systems
Solenoid Valve (Proportional Reducing) - Power Shift System
320D3 and 323D3 Excavators Systems
Reuse And Salvage Guidelines
Vane Type Hydraulic Pumps {5055}
Vane Type Hydraulic Pumps {5055}
Repair Process for Hydraulic Gear Pumps {5073}
Repair Process for Hydraulic Gear Pumps {5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 9, 10, and 11) {5061, 506G, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 9, 10, and 11) {5061, 506G, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Removing and Installing Bushings and Pressure Plates in Hydraulic Gear Pumps {5073}
Removing and Installing Bushings and Pressure Plates in Hydraulic Gear Pumps {5073}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
Testing and Adjusting
Main Hydraulic Pump Air - Purge
323D3 Excavator Hydraulic System
Main Pump (Flow) - Test - Hydraulic Power
323D3 Excavator Hydraulic System
Swing Speed and Overswing on Level Ground - Check
323D3 Excavator Hydraulic System
Pump Control (Output Flow) - Adjust
323D3 Excavator Hydraulic System
Swing Speed and Swing Drift on a Slope - Check
323D3 Excavator Hydraulic System
Bench Test Procedures
Bench Test Procedure for Hydraulic Piston Pumps {0784, 5070}
Bench Test Procedure for Hydraulic Piston Pumps {0784, 5070}
Disassembly and Assembly
Main Hydraulic Pump - Remove and Install
323D3 Hydraulic Excavators Machine Systems

Caterpillar Parts SIS Catalog 323D3 :

PLUG GP-CONTROL VALVE
310-0404 PLUG GP-CONTROL VALVE
MOUNTING GP-MAIN CONTROL VALVE
260-7868 MOUNTING GP-MAIN CONTROL VALVE
MOTOR GP-SWING
549-3964 MOTOR GP-SWING
MOTOR GP-SWING
524-2647 MOTOR GP-SWING
MOTOR & MTG GP-TRAVEL
550-5771 MOTOR & MTG GP-TRAVEL
MANIFOLD GP-CONTROL
239-8998 MANIFOLD GP-CONTROL
MANIFOLD GP-CONTROL
239-8697 MANIFOLD GP-CONTROL
215-5037 MANIFOLD GP-CONTROL
PUMP GP-GEAR
551-6789 PUMP GP-GEAR
PUMP GP-MAIN HYDRAULIC
524-2648 PUMP GP-MAIN HYDRAULIC
SCREEN GP-HYDRAULIC
259-0922 SCREEN GP-HYDRAULIC
SWIVEL GP
234-4440 SWIVEL GP
TANK & FILTER GP-HYDRAULIC
507-5950 TANK & FILTER GP-HYDRAULIC
TANK & MTG GP-HYDRAULIC
562-9614 TANK & MTG GP-HYDRAULIC
VALVE & MTG GP-CONTROL
255-5713 VALVE & MTG GP-CONTROL
VALVE GP-CONTROL
244-8400 VALVE GP-CONTROL
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The names Cat, Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Doosan, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
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