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461-0522 MOTOR GP-PISTON PART OF 417-1113 DRIVE GP-FINAL ALSO AN ATTACHMENT 303.5E2 CR MINI HYD EXCAVATOR


HYDRAULIC SYSTEM
MOTOR GP
MOUNTING GP
DRIVE GP
PUMP GP
SWIVEL GP
TANK GP

MINI HYD EXCAVATOR 303.5E2 CR MINI HYD EXCAVATOR BG8
 303.5E 2CR Mini Hydraulic Excavator BG800001-UP (MACHINE) POWERED BY C1.7 Engine SEBP6880 303.5E2 CR BG8   (2014)

HYDRAULIC SYSTEM

MOTOR GP
DRIVE GP-SWING
266-6396 DRIVE GP-SWING
MOTOR & MTG GP-SWING
265-8752 MOTOR & MTG GP-SWING
MOTOR GP-PISTON
461-0522 MOTOR GP-PISTON
MOTOR GP-SWING
281-3052 MOTOR GP-SWING
VALVE GP-RELIEF
281-3053 VALVE GP-RELIEF
VALVE GP-RELIEF
432-5646 VALVE GP-RELIEF
 

#SEBP68800260
 

461-0522: MOTOR GP-PISTON

461-0522 MOTOR GP-PISTON
PART OF 417-1113 DRIVE GP-FINAL
ALSO AN ATTACHMENT
i06183120 SEBP6880
4610522 MOTOR GP-PISTON Parts scheme
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Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 095-1719 J [1] SEAL-O-RING  
2. 095-1574 J [2] SEAL-O-RING  
3. 461-0526 J [1] SEAL  
4. 8T-1159 M [7] BOLT-SOCKET HEAD (M10X1.5X25-MM)  
5. 095-1716 J [1] SEAL-O-RING  
6. 095-1714 J [1] SEAL-O-RING  
7. 461-0527 J [1] RING-BACKUP  
8. 461-0528 J [1] RING-BACKUP  
9. 095-1575 J [2] SEAL-O-RING  
10. 095-1582 J [2] SEAL-O-RING  
11. 095-1593 J [2] SEAL-O-RING  
   
    PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY
   
    AVAILABLE REPAIR KIT(S):
  461-0529 J [1] KIT-SEAL (PISTON MOTOR)  
    (INCLUDES SEALS & RINGS)
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
 

#SEBP68800261
 

281-3052: MOTOR GP-SWING

281-3052 MOTOR GP-SWING
PART OF 266-6396 DRIVE GP-SWING
ALSO AN ATTACHMENT
i05836669 SEBP6880
2813052 MOTOR GP-SWING Parts scheme
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Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 153-6087 [1] SCREEN  
2. 280-2364 [1] BEARING  
3. 6B-5328 [1] BEARING  
4. 8C-3312 [1] RING-RETAINING  
5. 5A-3604 M [12] BOLT-SOCKET HEAD (M8X1.25X25-MM)  
6. 095-0880 [1] PIN  
7. 280-2365 [1] PIN  
8. 095-1716 [1] SEAL-O-RING  
9. 095-1719 [1] SEAL-O-RING  
10. 274-9034 Y [1] VALVE GP-CONTROL (SWING BRAKE)  
11. 8T-8442 M [4] BOLT-SOCKET HEAD (M6X1X30-MM)  
12. 281-3053 Y [2] VALVE GP-RELIEF  
13. 095-1579 [2] SEAL-O-RING  
14. 280-2367 [1] KIT-PUMP  
    (INCLUDES BODY, CHECK VALVES, BEARING, SPRINGS & PLUGS)
15. 280-2368 [1] KIT-BARREL (SWING MOTOR)  
    (INCLUDES SHOES, PISTONS, SHOE HOLDER, BARREL HOLDER, PINS, BARREL, RETAINERS, SPRING & VALVE PLATE))
16. 280-2369 [1] KIT-SWASHPLATE  
17. 280-2405 [3] PIN  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP68800262
 

390-8873: MOUNTING GP-VALVE

390-8873 MOUNTING GP-VALVE -MAIN CONTROL VALVE
PART OF 397-7152 BLADE AR-ANGLING, 397-7151 BLADE AR-STRAIGHT
AN ATTACHMENT
i05767438 SEBP6880
3908873 MOUNTING GP-VALVE Parts scheme
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Parts for your 303.5E2 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
 

#SEBP68800263
 

280-2355: PLANETARY GP-SWING DRIVE

280-2355 PLANETARY GP-SWING DRIVE
PART OF 266-6396 DRIVE GP-SWING
ALSO AN ATTACHMENT
i05836620 SEBP6880
2802355 PLANETARY GP-SWING DRIVE Parts scheme
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Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 280-2357 [1] GEAR  
2. 280-2358 [1] GEAR  
3. 280-2359 [1] SEAL  
4. 6V-5587 J [4] RING-RETAINING  
5. 5A-3604 M [6] BOLT-SOCKET HEAD (M8X1.25X25-MM)  
6. 280-2360 [1] RING  
7. 280-2361 [1] KIT-PINION  
    (INCLUDES PINION SHAFT, SEAL RING, BEARINGS, BODY, SEAL, COLLAR, GEAR & PINS)
8. 280-2362 J [1] KIT-CARRIER  
    (ALSO INCLUDES CARRIER, THRUST WASHERS, RINGS, NEEDLES, GEARS & THRUST PLATE)
9. 280-2363 [1] KIT-CARRIER  
    (INCLUDES CARRIER, THRUST WASHERS, RINGS, NEEDLES, GEARS & THRUST PLATE)
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
 

#SEBP68800264
 

452-5540: PUMP & MTG GP-MAIN HYDRAULIC

452-5540 PUMP & MTG GP-MAIN HYDRAULIC
PART OF 397-7016 HYDRAULIC AR
ALSO AN ATTACHMENT
i05843806 SEBP6880
4525540 PUMP & MTG GP-MAIN HYDRAULIC Parts scheme
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Parts for your 303.5E2 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. 436-7875 [1] HOUSING AS  
  387-3788 [2] PIN  
  436-7876 [1] HOUSING-COVER  
4. 442-5649 Y [1] PUMP GP-PISTON  
5. 6V-8200 M [3] BOLT-SOCKET HEAD (M12X1.75X35-MM)  
6. 8T-4121 [7] WASHER-HARD (11X21X2.5-MM THK)  
7. 8T-4956 M [2] BOLT (M12X1.75X35-MM)  
8. 8T-4223 [2] WASHER-HARD (13.5X25.5X3-MM THK)  
9. 9X-2027 [1] WASHER (11X18X2-MM THK)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP68800265
 

442-5649: PUMP GP-PISTON

442-5649 PUMP GP-PISTON
PART OF 452-5540 PUMP & MTG GP-MAIN HYDRAULIC
ALSO AN ATTACHMENT
i05843807 SEBP6880
4425649 PUMP GP-PISTON Parts scheme
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Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 455-7950 Y [1] VALVE GP-PUMP CONTROL (FLOW COMPENSATOR)(FLOW COMPENSATOR)  
2. 341-7630 [1] VALVE-PUMP CONTROL (FLOW COMPENSATOR)  
3. 8T-9597 [1] RING-RETAINING  
4. 194-9473 [1] RING  
5. 359-1006 [1] SPRING  
6. 379-5187 [1] SPRING  
7. 333-7840 [1] STOP  
8. 9X-8979 [1] DOWEL  
9. 9X-6032 M [4] BOLT-SOCKET HEAD (M10X1.5X30-MM)  
10. 455-7946 [1] STOP  
11. 155-9148 [1] SEAL-O-RING  
12. 9S-8005 [3] PLUG (3/4-16-THD)  
13. 3K-0360 [3] SEAL-O-RING  
14. 355-2418 [1] BEARING  
15. 191-7582 [1] SHIM (2.5-MM THK)  
16. 355-2420 Y [1] ROTATING GP-PUMP (HYDRAULIC FAN)  
17. 6R-7943 M [2] SCREW (M5X0.8X15-MM)  
18. 364-2043 [1] BEARING-ROLLER  
19. 185-0303 [1] SEAL-OIL  
20. 351-6663 [2] BEARING-CRADLE  
21. 168-3504 [2] SEAL  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP68800266
 

355-2420: ROTATING GP-PUMP

355-2420 ROTATING GP-PUMP
PART OF 442-5649 PUMP GP-PISTON
ALSO AN ATTACHMENT
i04158986 SEBP6880
3552420 ROTATING GP-PUMP Parts scheme
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Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 355-2422 [1] PLATE-VALVE  
2. 295-9539 [1] RETAINER  
3. 355-2421 [9] PISTON AS  
4. 295-9540 [1] RETAINER-BALL  
 

#SEBP68800267
 

191-7516: SWIVEL GP

191-7516 SWIVEL GP
PART OF 452-5553 LINES GP-TRAVEL MOTOR
AN ATTACHMENT
i05871127 SEBP6880
1917516 SWIVEL GP Parts scheme
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Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 095-8051 [3] PLUG  
2. 146-4875 [1] SEAL-BACK UP  
3. 146-4877 [1] SEAL-DUST  
4. 169-1134 [1] FLANGE  
5. 169-1135 [1] RING  
6. 193-5330 [7] SEAL AS  
7. 221-0936 [1] SHAFT  
8. 221-0937 [1] HOUSING  
9. 221-0938 [1] PIN  
10. 095-1623 [1] SEAL-O-RING  
11. 095-1710 [1] SEAL-O-RING  
12. 095-1713 [1] SEAL-O-RING  
13. 095-7951 [1] RING-RETAINING  
14. 095-9397 [4] LOCKWASHER  
15. 8T-4195 M [4] BOLT (M10X1.5X30-MM)  
  M   METRIC PART
 

#SEBP68800268
 

266-6836: SWIVEL GP

266-6836 SWIVEL GP
PART OF 452-5555 LINES GP-TRAVEL MOTOR
AN ATTACHMENT
i05767735 SEBP6880
2666836 SWIVEL GP Parts scheme
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Parts for your 303.5E2 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
 

#SEBP68800269
 

425-5617: TANK & FILTER GP-HYDRAULIC

425-5617 TANK & FILTER GP-HYDRAULIC
79.9-LITER (21.1-US GAL)
PART OF 425-5616 TANK & MTG GP-HYDRAULIC
ALSO AN ATTACHMENT
i05836549 SEBP6880
4255617 TANK & FILTER GP-HYDRAULIC Parts scheme
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Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3S-2093 [1] 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. 425-5618 [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 (113-CM)  
  E   ORDER BY THE CENTIMETER
  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
Radiator and Hydraulic Oil Cooler
303.5E2 CR, 304E2 CR, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Machine System Specifications
Travel Motor and Mounting
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 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
Swing Hydraulic System
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

Caterpillar Parts SIS Catalog 303.5E2 CR :

MOTOR & MTG GP-SWING
265-8752 MOTOR & MTG GP-SWING
LINES GP-TRAVEL MOTOR
452-5555 LINES GP-TRAVEL MOTOR
LINES GP-TRAVEL MOTOR
452-5553 LINES GP-TRAVEL MOTOR
LINES GP-SWING MOTOR
452-5554 LINES GP-SWING MOTOR
LINES GP-SWING MOTOR
452-5552 LINES GP-SWING MOTOR
LINES GP-SWING CYLINDER
399-6785 LINES GP-SWING CYLINDER
LINES GP-SWING CYLINDER
399-6729 LINES GP-SWING CYLINDER
LINES GP-STICK
399-6796 LINES GP-STICK
MOTOR GP-SWING
281-3052 MOTOR GP-SWING
MOUNTING GP-VALVE
390-8873 MOUNTING GP-VALVE
PLANETARY GP-SWING DRIVE
280-2355 PLANETARY GP-SWING DRIVE
PUMP & MTG GP-MAIN HYDRAULIC
452-5540 PUMP & MTG GP-MAIN HYDRAULIC
PUMP GP-PISTON
442-5649 PUMP GP-PISTON
ROTATING GP-PUMP
355-2420 ROTATING GP-PUMP
SWIVEL GP
191-7516 SWIVEL GP
SWIVEL GP
266-6836 SWIVEL GP
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