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452-2741 MOUNTING GP-CYLINDER PART OF 452-2740 THUMB AR AN ATTACHMENT 304E2 MINI HYD EXCAVATOR


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

MINI HYD EXCAVATOR 304E2 MINI HYD EXCAVATOR ME4
 304E2 Mini Hydraulic Excavator ME400001-UP (MACHINE) POWERED BY C2.4 Engine SEBP6898 304E2 ME4   (2015)

HYDRAULIC SYSTEM

CYLINDER GP
LINES GP-COUPLER
425-8093 LINES GP-COUPLER
LINES GP-COUPLER
542-5436 LINES GP-COUPLER
MOUNTING GP-CYLINDER
452-2741 MOUNTING GP-CYLINDER
 

#SEBP68980380
 

452-2741: MOUNTING GP-CYLINDER

452-2741 MOUNTING GP-CYLINDER
PART OF 452-2740 THUMB AR
AN ATTACHMENT
i06144954 SEBP6898
4522741 MOUNTING GP-CYLINDER Parts scheme
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Parts for your 304E2 MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3B-8489 [2] FITTING-GREASE (1/8-27 PTF)  
2. 204-4976 B [3] SPACER (42X90X5-MM THK)  
3. 267-9485 [2] PIN  
4. 452-2743 [1] PIN AS  
5. 162-7120 [4] PIN  
6. 8T-4133 M [2] NUT (M10X1.5-THD)  
7. 8T-4198 M [1] BOLT (M10X1.5X100-MM)  
8. 468-7327 B [4] SHIM (1-MM THK)  
  B   USE AS REQUIRED
  M   METRIC PART
 

#SEBP68980381
 

390-8873: MOUNTING GP-VALVE

390-8873 MOUNTING GP-VALVE -MAIN CONTROL VALVE
PART OF 463-8034 BLADE AR-ANGLING, 463-8031 BLADE AR-STRAIGHT
AN ATTACHMENT
i05767438 SEBP6898
3908873 MOUNTING GP-VALVE Parts scheme
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Parts for your 304E2 MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 539-5593 [1] SUPPORT AS  
  7T-1099 [2] LINK  
  8T-3490 M [4] NUT-WELD (M10X1.5-THD)  
  8T-3597 M [4] NUT-WELD (M12X1.75-THD)  
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
 

#SEBP68980382
 

280-2355: PLANETARY GP-SWING DRIVE

280-2355 PLANETARY GP-SWING DRIVE
PART OF 266-6396 DRIVE GP-SWING
ALSO AN ATTACHMENT
i05836620 SEBP6898
2802355 PLANETARY GP-SWING DRIVE Parts scheme
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Parts for your 304E2 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
 

#SEBP68980383
 

461-9826: PUMP & MTG GP-MAIN HYDRAULIC

461-9826 PUMP & MTG GP-MAIN HYDRAULIC
PART OF 460-8474 HYDRAULIC AR
ALSO AN ATTACHMENT
i06111765 SEBP6898
4619826 PUMP & MTG GP-MAIN HYDRAULIC Parts scheme
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Parts for your 304E2 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. 398-7478 Y [1] PUMP GP-MAIN HYDRAULIC  
4. 461-2786 [1] HOUSING AS-FLYWHEEL  
  520-0323 [2] PIN-DOWEL  
  [1] HOUSING-COVER  
5. 6V-8200 M [3] BOLT-SOCKET HEAD (M12X1.75X35-MM)  
6. 8T-4121 [7] WASHER-HARD (11X21X2.5-MM THK)  
7. 8T-4223 [2] WASHER-HARD (13.5X25.5X3-MM THK)  
8. 8T-4956 M [2] BOLT (M12X1.75X35-MM)  
9. 9X-2027 [1] WASHER (11X18X2-MM THK)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP68980384
 

398-7478: PUMP GP-MAIN HYDRAULIC

398-7478 PUMP GP-MAIN HYDRAULIC
PART OF 461-9826 PUMP & MTG GP-MAIN HYDRAULIC
ALSO AN ATTACHMENT
i05836546 SEBP6898
3987478 PUMP GP-MAIN HYDRAULIC Parts scheme
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Parts for your 304E2 MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 455-7950 Y [1] VALVE GP-PUMP CONTROL (FLOW COMPENSATOR)  
2. 455-7949 [1] VALVE GP-PUMP CONTROL (TORQUE LIMITING SPOOL)  
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. 101-7404 M [4] BOLT-SOCKET HEAD (M10X1.5X30-MM)  
10. 168-3504 [2] SEAL  
11. 231-4707 [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  
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  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP68980385
 

355-2420: ROTATING GP-PUMP

355-2420 ROTATING GP-PUMP
PART OF 398-7478 PUMP GP-MAIN HYDRAULIC
ALSO AN ATTACHMENT
i04158986 SEBP6898
3552420 ROTATING GP-PUMP Parts scheme
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Parts for your 304E2 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  
 

#SEBP68980386
 

191-7516: SWIVEL GP

191-7516 SWIVEL GP
PART OF 415-5158 LINES GP-TRAVEL MOTOR
AN ATTACHMENT
i05871127 SEBP6898
1917516 SWIVEL GP Parts scheme
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Parts for your 304E2 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
 

#SEBP68980387
 

266-6836: SWIVEL GP

266-6836 SWIVEL GP
PART OF 415-5159 LINES GP-TRAVEL MOTOR
AN ATTACHMENT
i05767735 SEBP6898
2666836 SWIVEL GP Parts scheme
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Parts for your 304E2 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
 

#SEBP68980388
 

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 SEBP6898
4255617 TANK & FILTER GP-HYDRAULIC Parts scheme
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Parts for your 304E2 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
 

#SEBP68980389
 

425-5616: TANK & MTG GP-HYDRAULIC

425-5616 TANK & MTG GP-HYDRAULIC
PART OF 460-8474 HYDRAULIC AR
ALSO AN ATTACHMENT
i05836548 SEBP6898
4255616 TANK & MTG GP-HYDRAULIC Parts scheme
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Parts for your 304E2 MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 425-5617 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
 

Information:

Special Instruction
Instructions for Installation of Oversize Hydraulic Cylinder Seals {7555, 7562}
Instructions for Installation of Oversize Hydraulic Cylinder Seals {7555, 7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}
Procedure to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
Procedure to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
Technical Information Bulletin
Hydraulic Cylinders May Leak on Certain 303.5E2, 304.5E2, and 304E2 Mini Hydraulic Excavators {5457}
Hydraulic Cylinders May Leak on Certain 303.5E2, 304.5E2, and 304E2 Mini Hydraulic Excavators {5457}
Boom, Stick, Bucket, and Blade Hydraulic Cylinders May Leak on Certain 303.5E2, 304E2, and 304.5E2 Mini Hydraulic Excavators {5113, 5456, 5457, 5458}
Boom, Stick, Bucket, and Blade Hydraulic Cylinders May Leak on Certain 303.5E2, 304E2, and 304.5E2 Mini Hydraulic Excavators {5113, 5456, 5457, 5458}
Specifications
Boom Lines
303.5E2 CR, 304.5E2 XTC, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine System Specifications
Swing Boom Cylinder
303.5E2 CR, 304.5E2 XTC, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine System Specifications
Stick Cylinder
303.5E2 CR, 304.5E2 XTC, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine System Specifications
Blade Cylinder
303.5E2 CR, 304.5E2 XTC, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine System Specifications
Cylinder Guard
303.5E2 CR, 304.5E2 XTC, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine System Specifications
Bucket Cylinder
303.5E2 CR, 304.5E2 XTC, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine System Specifications
Blade Cylinder - Angle
303.5E2 CR, 304.5E2 XTC, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine System Specifications
Boom Cylinder
303.5E2 CR, 304.5E2 XTC, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine System Specifications
Boom Cylinder
303.5E2 CR, 304.5E2 XTC, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine System Specifications
Boom Cylinder
303.5E2 CR, 304.5E2 XTC, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine System Specifications
Systems Operation
Blade Hydraulic System
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Cylinders (Boom, Stick and Bucket)
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Reuse And Salvage Guidelines
Testing Hydraulic Cylinders Using the <NOBR>188-3926</NOBR> Caterpillar Cylinder Tester and the <NOBR> 9U-6803</NOBR> Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the 188-3926 Caterpillar Cylinder Tester and the 9U-6803 Caterpillar Cylinder Tester {0784, 7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Inspection and Salvage of Hydraulic Cylinder Components {7562}
Inspection and Salvage of Hydraulic Cylinder Components {7562}
Measuring Bores and Installing Seals in Standard and Oversized Hydraulic Cylinders {5100, 7562}
Measuring Bores and Installing Seals in Standard and Oversized Hydraulic Cylinders {5100, 7562}
Machining the O-ring Groove into the Face of Oversized Bolted Head Hydraulic Cylinders {0677, 5100, 7562}
Machining the O-ring Groove into the Face of Oversized Bolted Head Hydraulic Cylinders {0677, 5100, 7562}
Contamination Control Guidelines
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}
Applied Failure Analysis
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Testing and Adjusting
Cylinder Drift - Check
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Cylinder Speed - Check
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Bench Test Procedures
Testing Hydraulic Cylinders Using the <NOBR>188-3926</NOBR> Caterpillar Cylinder Tester and the <NOBR> 9U-6803</NOBR> Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the 188-3926 Caterpillar Cylinder Tester and the 9U-6803 Caterpillar Cylinder Tester {0784, 7562}
Disassembly and Assembly
Blade Cylinder - Remove and Install
303.5E2 CR, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine Systems
Bucket Cylinder - Remove and Install
303.5E2 CR, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine Systems
Stick Cylinder - Remove and Install
303.5E2 CR, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine Systems
Boom Cylinder - Remove and Install
303.5E2 CR, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine Systems
Swing Boom Cylinder - Remove and Install
303.5E2 CR, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Machine Systems
Service Magazine
Compatible Puller Stud and Hydraulic Cylinder Capacity Chart {0599, 7000, 7562}
Compatible Puller Stud and Hydraulic Cylinder Capacity Chart {0599, 7000, 7562}
Improved Seal Kits for Cylinders are Now Used on Certain 303.5E2, 304.5E2, and 304E2 Mini Hydraulic Excavators {5456}
Improved Seal Kits for Cylinders are Now Used on Certain 303.5E2, 304.5E2, and 304E2 Mini Hydraulic Excavators {5456}

Caterpillar Parts SIS Catalog 304E2 :

MOTOR GP-SWING
281-3052 MOTOR GP-SWING
MOTOR GP-PISTON
461-0522 MOTOR GP-PISTON
MOTOR & MTG GP-SWING
265-8752 MOTOR & MTG GP-SWING
MANIFOLD GP-CONTROL
449-1609 MANIFOLD GP-CONTROL
LINES GP-TRAVEL MOTOR
415-5159 LINES GP-TRAVEL MOTOR
LINES GP-TRAVEL MOTOR
415-5158 LINES GP-TRAVEL MOTOR
LINES GP-SWING MOTOR
464-9267 LINES GP-SWING MOTOR
LINES GP-SWING MOTOR
464-9267 LINES GP-SWING MOTOR
MOUNTING GP-VALVE
390-8873 MOUNTING GP-VALVE
PLANETARY GP-SWING DRIVE
280-2355 PLANETARY GP-SWING DRIVE
PUMP & MTG GP-MAIN HYDRAULIC
461-9826 PUMP & MTG GP-MAIN HYDRAULIC
PUMP GP-MAIN HYDRAULIC
398-7478 PUMP GP-MAIN HYDRAULIC
ROTATING GP-PUMP
355-2420 ROTATING GP-PUMP
SWIVEL GP
191-7516 SWIVEL GP
SWIVEL GP
266-6836 SWIVEL GP
TANK & FILTER GP-HYDRAULIC
425-5617 TANK & FILTER GP-HYDRAULIC
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