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452-3614 MOTOR GP-PISTON -SWING PART OF 456-7221 DRIVE GP-SWING ALSO AN ATTACHMENT 305.5E2 CR MINI HYD EXCAVATOR


HYDRAULIC SYSTEM
MOTOR GP
MOUNTING GP
PUMP GP
SWIVEL GP
TANK GP
VALVE GP-CONTROL

MINI HYD EXCAVATOR 305.5E2 CR MINI HYD EXCAVATOR EJX
 305.5E2 CR Mini Hydraulic Excavator EJX00001-UP (MACHINE) POWERED BY C2.4 Engine SEBP6888 305.5E2 CR EJX   (2014)

HYDRAULIC SYSTEM

MOTOR GP
DRIVE GP-SWING
456-7221 DRIVE GP-SWING
DRIVE GP-SWING
456-7223 DRIVE GP-SWING
MOTOR & MTG GP-SWING
397-6942 MOTOR & MTG GP-SWING
MOTOR GP-PISTON
452-3610 MOTOR GP-PISTON
MOTOR GP-PISTON
452-3614 MOTOR GP-PISTON
VALVE GP-RELIEF
432-5646 VALVE GP-RELIEF
VALVE GP-RELIEF
452-3625 VALVE GP-RELIEF
 

#SEBP68880280
 

452-3614: MOTOR GP-PISTON

452-3614 MOTOR GP-PISTON -SWING
PART OF 456-7221 DRIVE GP-SWING
ALSO AN ATTACHMENT
i06153172 SEBP6888
4523614 MOTOR GP-PISTON Parts scheme
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Parts for your 305.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 095-1717 H [1] SEAL-O-RING  
2. 095-1719 H [1] SEAL-O-RING  
3. 431-0305 Y [1] BRAKE GP-SWING  
4. 236-9839 M [4] BOLT-SOCKET HEAD (M6X1X15-MM)  
5. 452-3625 Y [1] VALVE GP-RELIEF  
6. 095-1579 HL [2] SEAL-O-RING  
   
    PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY
   
    AVAILABLE REPAIR KIT(S):
  452-3627 L [1] KIT-SEAL  
  314-7714 H [1] KIT-SEAL  
    (INCLUDES PARTS MARKED "J" IN THE GRAPHIC)
  H   KIT MARKED H SERVICES PART(S) MARKED H
  L   KIT MARKED L SERVICES PART(S) MARKED L
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP68880281
 

390-8873: MOUNTING GP-VALVE

390-8873 MOUNTING GP-VALVE -MAIN CONTROL VALVE
PART OF 397-7158 BLADE AR, 397-7157 BLADE AR-STRAIGHT
AN ATTACHMENT
i05767438 SEBP6888
3908873 MOUNTING GP-VALVE Parts scheme
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Parts for your 305.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 423-1832 [1] SUPPORT AS  
2. 7X-7729 [4] WASHER (11X25X3-MM THK)  
3. 8T-4194 M [3] BOLT (M12X1.75X50-MM)  
4. 8T-4195 M [4] BOLT (M10X1.5X30-MM)  
5. 8T-4223 [3] WASHER-HARD (13.5X25.5X3-MM THK)  
  M   METRIC PART
 

#SEBP68880282
 

436-7873: PUMP & MTG GP-MAIN HYDRAULIC

436-7873 PUMP & MTG GP-MAIN HYDRAULIC
PART OF 397-7019 HYDRAULIC AR
ALSO AN ATTACHMENT
i05764777 SEBP6888
4367873 PUMP & MTG GP-MAIN HYDRAULIC Parts scheme
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Parts for your 305.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 388-6412 M [8] BOLT (M10X1.25X50-MM)  
2. 390-8885 [1] COUPLING-PUMP  
3. 423-0089 Y [1] PUMP GP-MAIN HYDRAULIC  
4. 436-7874 [1] HOUSING AS-FLYWHEEL  
  387-3788 [2] PIN  
5. 6V-8200 M [3] BOLT-SOCKET HEAD (M12X1.75X35-MM)  
6. 8T-4121 [7] WASHER-HARD (11X21X2.5-MM THK)  
7. 8T-4183 M [4] BOLT (M12X1.75X40-MM)  
8. 8T-4223 [4] WASHER-HARD (13.5X25.5X3-MM THK)  
9. 9X-2027 [1] WASHER (11X18X2-MM THK)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP68880283
 

423-0089: PUMP GP-MAIN HYDRAULIC

423-0089 PUMP GP-MAIN HYDRAULIC
PART OF 436-7873 PUMP & MTG GP-MAIN HYDRAULIC
ALSO AN ATTACHMENT
i05764764 SEBP6888
4230089 PUMP GP-MAIN HYDRAULIC Parts scheme
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Parts for your 305.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6R-7943 M [2] SCREW (M5X0.8X15-MM)  
2. 180-6213 [1] RING-RETAINING  
3. 258-0139 [1] SEAL-SHAFT  
4. 2M-9780 [3] SEAL-O-RING  
5. 386-6610 [1] SPRING  
6. 9X-8979 [1] DOWEL  
7. 8T-2503 M [4] BOLT-SOCKET HEAD (M14X2X35-MM)  
8. 168-3504 [2] SEAL  
9. 258-0135 [2] PLUG  
10. 190-6507 [1] RING-STOP  
11. 9W-2110 [1] CUP-TAPERED ROLLER  
12. 8J-0412 [1] CUP-BEARING  
13. 192-7470 [1] SEAL-O-RING  
14. 168-2203 [1] SHIM-SHAFT (3-MM THK)  
15. 386-6612 [1] BEARING-CRADLE  
16. 386-6611 [1] BEARING-CRADLE  
17. 398-7457 Y [1] VALVE GP-PUMP CONTROL (FLOW COMPENSATOR)  
18. 379-5187 [1] SPRING  
19. 333-7840 [1] STOP  
20. 442-5643 [1] VALVE GP-PUMP CONTROL  
21. 376-0900 Y [1] ROTATING GP-PUMP  
22. 279-2491 [1] PLATE-PORT  
23. 9S-8006 [3] PLUG (7/8-14-THD)  
24. 3P-1210 [1] CONE-BEARING  
25. 9W-2109 [1] CONE-BEARING  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP68880284
 

376-0900: ROTATING GP-PUMP

376-0900 ROTATING GP-PUMP
PART OF 423-0089 PUMP GP-MAIN HYDRAULIC
ALSO AN ATTACHMENT
i05135629 SEBP6888
3760900 ROTATING GP-PUMP Parts scheme
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Parts for your 305.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 168-3384 [9] PISTON AS-PUMP  
2. 168-3385 [1] PLATE-RETRACTION  
3. 168-3378 [1] BEARING-SPHERICAL  
4. 168-3381 [1] SPRING  
5. 168-3379 [3] PIN  
6. 6V-7723 [1] RING-RETAINING  
7. 168-3382 [1] WASHER (30X42X2.7-MM THK)  
 

#SEBP68880285
 

266-6836: SWIVEL GP

266-6836 SWIVEL GP
PART OF 432-1471 LINES GP-TRAVEL MOTOR
AN ATTACHMENT
i05767735 SEBP6888
2666836 SWIVEL GP Parts scheme
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Parts for your 305.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 274-3344 [1] SHAFT  
2. 274-3346 [1] HOUSING  
3. 294-1868 [1] COVER  
4. 274-3349 [1] SPACER  
5. 169-1136 [1] PIN  
6. 274-3351 [6] SEAL AS  
7. 193-5330 [4] SEAL AS  
8. 095-1623 [1] SEAL-O-RING  
9. 095-1713 [2] SEAL-O-RING  
10. 8T-5376 [1] SEAL-O-RING  
11. 146-4875 [1] SEAL-BACK UP  
12. 146-4877 [1] SEAL-DUST  
13. 095-0929 [1] RING-RETAINING  
14. 9X-6032 M [4] BOLT-SOCKET HEAD (M10X1.5X30-MM)  
15. 095-0966 [5] PLUG  
  M   METRIC PART
 

#SEBP68880286
 

373-4963: SWIVEL GP

373-4963 SWIVEL GP
PART OF 432-1470 LINES GP-TRAVEL MOTOR
AN ATTACHMENT
i05780334 SEBP6888
3734963 SWIVEL GP Parts scheme
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Parts for your 305.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 269-0337 [6] SEAL  
2. 376-2017 [1] SEAL  
3. 251-8485 [1] COVER  
4. 251-8486 [1] HOUSING  
5. 251-8487 [1] ROTOR  
6. 251-8488 [1] SEAL  
7. 8T-4195 M [4] BOLT (M10X1.5X30-MM)  
8. 8T-4121 [4] WASHER-HARD (11X21X2.5-MM THK)  
9. 8T-4908 M [2] BOLT (M8X1.25X25-MM)  
10. 095-1714 [1] SEAL-O-RING  
11. 251-8489 [1] RETAINER  
12. 095-1623 [1] SEAL-O-RING  
13. 095-1710 [1] SEAL-O-RING  
14. 252-5417 [3] PLUG  
15. 251-8490 [1] PIN  
  M   METRIC PART
 

#SEBP68880287
 

425-5614: TANK & FILTER GP-HYDRAULIC

425-5614 TANK & FILTER GP-HYDRAULIC
PART OF 425-5613 TANK & MTG GP-HYDRAULIC
ALSO AN ATTACHMENT
i05764720 SEBP6888
4255614 TANK & FILTER GP-HYDRAULIC Parts scheme
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Parts for your 305.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3S-2093 [2] STRAP-CABLE  
2. 4I-3745 [1] CAP-PRESSURE (HYDRAULIC TANK)  
3. 262-5689 [1] STRAINER AS (HYDRAULIC TANK)  
  135-7940 [1] SEAL-O-RING  
4. 347-6081 Y [1] GAUGE GP-SIGHT (HYDRAULIC OIL LEVEL)  
5. 425-5615 [1] TANK AS-HYDRAULIC  
6. 148-8407 [1] PLUG AS  
  3J-1907 [1] SEAL-O-RING  
  9S-4191 [1] PLUG (9/16-18-THD)  
7. 7Y-1976 E HOSE-WATER (125-CM)  
  E   ORDER BY THE CENTIMETER
  Y   SEPARATE ILLUSTRATION
 

#SEBP68880288
 

425-5613: TANK & MTG GP-HYDRAULIC

425-5613 TANK & MTG GP-HYDRAULIC
PART OF 397-7019 HYDRAULIC AR
ALSO AN ATTACHMENT
i05764667 SEBP6888
4255613 TANK & MTG GP-HYDRAULIC Parts scheme
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Parts for your 305.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 425-5614 Y [1] TANK & FILTER GP-HYDRAULIC  
2. 7X-7729 [4] WASHER (11X25X3-MM THK)  
3. 8T-4195 M [4] BOLT (M10X1.5X30-MM)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP68880289
 

415-5010: VALVE & MTG GP-CONTROL

415-5010 VALVE & MTG GP-CONTROL -BLADE
PART OF 415-5017, 415-5025 CAB AR, 415-5021 CANOPY AR
AN ATTACHMENT
i05759593 SEBP6888
4155010 VALVE & MTG GP-CONTROL Parts scheme
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Parts for your 305.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 438-8361 Y [1] VALVE GP-PILOT (BLADE CONTROL)  
2. 101-7404 M [2] BOLT-SOCKET HEAD (M10X1.5X30-MM)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

Information:

Special Instruction
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Specifications
Travel Motor and Mounting
303.5E2 CR, 304E2 CR, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Machine System Specifications
Radiator and Hydraulic Oil Cooler
303.5E2 CR, 304E2 CR, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Machine System Specifications
Systems Operation
Travel Motor
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Swing Hydraulic System
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Swing Motor
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Displacement Change Valve
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Travel Counterbalance Valve
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Reuse And Salvage Guidelines
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
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}
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
Travel on Level Ground - Test - Optional Test
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Travel on Level Ground - Test
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Machine Drift on a Slope - Check
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Swing Speed and Overswing on Level Ground - Check
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Swing Speed and Swing Drift on a Slope - Check
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Travel Motor - Test - Measurement of Case Drain Oil
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Swing Motor - Test - Measurement of Case Drain Oil
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Bench Test Procedures
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Disassembly and Assembly
Swing Motor and Swing Drive - Remove and Install
303.5E2 CR, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine Systems
Swing Motor and Swing Drive - Disassemble
303.5E2 CR, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine Systems
Swing Motor and Swing Drive - Assemble
303.5E2 CR, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine Systems
Final Drive and Travel Motor - Disassemble
303.5E2 CR, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine Systems
Final Drive and Travel Motor - Assemble
303.5E2 CR, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine Systems
Final Drive and Travel Motor - Remove and Install
303.5E2 CR, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine Systems
Service Magazine
A New Drive Motor Counterbalance Spring Is Now Available For Certain Mini Hydraulic Excavators {5058}
A New Drive Motor Counterbalance Spring Is Now Available For Certain Mini Hydraulic Excavators {5058}

Caterpillar Parts SIS Catalog 305.5E2 CR :

MOTOR GP-PISTON
452-3610 MOTOR GP-PISTON
MOTOR & MTG GP-SWING
397-6942 MOTOR & MTG GP-SWING
LINES GP-TRAVEL MOTOR
432-1471 LINES GP-TRAVEL MOTOR
LINES GP-TRAVEL MOTOR
432-1470 LINES GP-TRAVEL MOTOR
LINES GP-SWING MOTOR
399-6793 LINES GP-SWING MOTOR
LINES GP-SWING MOTOR
390-8872 LINES GP-SWING MOTOR
LINES GP-SWING CYLINDER
390-8903 LINES GP-SWING CYLINDER
LINES GP-SWING CYLINDER
390-8901 LINES GP-SWING CYLINDER
MOUNTING GP-VALVE
390-8873 MOUNTING GP-VALVE
PUMP & MTG GP-MAIN HYDRAULIC
436-7873 PUMP & MTG GP-MAIN HYDRAULIC
PUMP GP-MAIN HYDRAULIC
423-0089 PUMP GP-MAIN HYDRAULIC
ROTATING GP-PUMP
376-0900 ROTATING GP-PUMP
SWIVEL GP
266-6836 SWIVEL GP
SWIVEL GP
373-4963 SWIVEL GP
TANK & FILTER GP-HYDRAULIC
425-5614 TANK & FILTER GP-HYDRAULIC
TANK & MTG GP-HYDRAULIC
425-5613 TANK & MTG GP-HYDRAULIC
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