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388-5292 CYLINDER GP-BOOM 100-MM (4-IN) BORE X 664.5-MM (26.2-IN) STROKE PART OF 379-4671 LINES AR-BOOM AN ATTACHMENT 305.5E




HYDRAULIC SYSTEM

CYLINDER GP
 

#SEBP59800180
 

388-5292: CYLINDER GP-BOOM

388-5292 CYLINDER GP-BOOM
100-MM (4-IN) BORE X 664.5-MM (26.2-IN) STROKE
PART OF 379-4671 LINES AR-BOOM
AN ATTACHMENT
i04631296 SEBP5980
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Parts for your 305.5E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 265-8726 [2] BUSHING  
2. 3B-8488 [1] FITTING-GREASE (1/8-27 PTF)  
3. 3B-8489 [1] FITTING-GREASE (1/8-27 PTF)  
4. 389-2613 [1] CYLINDER AS-BOOM  
5. 272-5647 [1] ROD AS  
6. 272-5635 [1] HEAD  
7. 272-5636 [1] BEARING  
8. 272-5637 [1] SEAL  
9. 272-5638 [1] PISTON  
10. 103-8331 M [1] LOCKNUT (M42X2-THD)  
11. 193-1769 [2] RING  
12. 193-1770 [1] SEAL  
13. 272-5640 [1] RING  
14. 272-5641 [1] BEARING  
15. 272-5642 [1] SEAL  
16. 272-5643 [1] RING  
17. 272-5644 [1] SEAL  
18. 095-1625 [2] SEAL-O-RING  
19. 093-1509 [3] RING-BACKUP  
20. 6V-8467 [1] SEAL-O-RING  
21. 272-5645 [4] SEAL  
22. 6V-8398 [1] SEAL-O-RING  
  M   METRIC PART
 

#SEBP59800181
 

266-6967: CYLINDER GP-BUCKET

266-6967 CYLINDER GP-BUCKET
80-MM (3.15-IN) BORE X 646-MM (25.43-IN) STROKE
PART OF 377-8908, 377-8909, 418-1569 LINKAGE AR-BUCKET
AN ATTACHMENT
i03996325 SEBP5980
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Parts for your 305.5E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 265-8721 [2] BUSHING  
3. 272-5674 [1] ROD AS  
4. 272-5675 [1] TUBE AS  
5. 193-1391 [1] PISTON  
6. 294-1867 [1] NUT (M36X4-THD)  
7. 272-5677 [1] HEAD  
8. 193-1393 J [2] RING  
9. 193-1394 J [1] SEAL  
10. 272-5678 [1] RING  
11. 221-8270 [1] BUSHING  
12. 272-5679 [1] SEAL  
13. 272-5680 J [1] RING  
14. 272-5681 J [1] SEAL  
15. 095-1622 J [1] SEAL-O-RING  
16. 095-1796 J [1] RING-BACKUP  
17. 8T-5376 J [1] SEAL-O-RING  
18. 272-5665 [4] SEAL  
19. 6V-8398 [1] SEAL-O-RING  
20. 8T-4191 M [1] BOLT (M10X1.5X16-MM)  
21. 3B-8488 [1] FITTING-GREASE (1/8-27 PTF)  
22. 3B-8489 [1] FITTING-GREASE (1/8-27 PTF)  
   
    AVAILABLE REPAIR KIT(S):
  430-8744 J [1] KIT-HYD CYLINDER SEAL  
    (INCLUDES U-CUP SEAL)
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
 

#SEBP59800182
 

361-1077: CYLINDER GP-HYDRAULIC

361-1077 CYLINDER GP-HYDRAULIC
PART OF 361-1075 LOCK GP-QUICK COUPLER
AN ATTACHMENT
i04404020 SEBP5980
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Parts for your 305.5E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 361-1132 Y [1] VALVE GP-CHECK (HYDRAULIC CONTROL LOCK)  
2. 125-8665 M [1] SCREW-FLAT HEAD (M6X1X16.7-MM)  
3. 361-1078 [1] KIT-SEAL  
    (INCLUDES SEALS, O-RINGS & PARTS MARKED "J" IN THE GRAPHIC)
4. 361-1127 [1] ROD AS  
5. 361-1128 [1] SEAL  
6. 361-1129 [1] PISTON  
7. 361-1186 [1] PISTON  
8. 192-7507 [2] SEAL-O-RING  
9. 8C-6430 M [2] SCREW-FLAT HEAD (M6X1X30-MM)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP59800183
 

282-1537: CYLINDER GP-STICK

282-1537 CYLINDER GP-STICK
90-MM (3.54-IN) BORE X 676-MM (26.61-IN) STROKE
PART OF 421-8470 LINES AR-STICK, 379-4669 STICK AR
AN ATTACHMENT
i03997418 SEBP5980
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Parts for your 305.5E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 265-8722 [2] BUSHING  
2. 272-5667 [1] CYLINDER AS  
3. 272-5668 [1] ROD AS  
4. 272-5658 [1] PISTON  
5. 272-5659 [1] HEAD  
6. 272-5660 [1] NUT  
7. 283-3221 [1] BEARING  
8. 272-5662 [1] RING  
9. 272-5663 [1] RING  
10. 193-1367 J [2] RING  
11. 193-1368 J [1] SEAL  
12. 272-5640 [1] RING  
13. 272-5664 [1] BEARING  
14. 272-5642 J [1] SEAL  
15. 272-5643 J [1] RING  
16. 272-5644 J [1] SEAL  
17. 095-1623 J [1] SEAL-O-RING  
18. 093-1513 J [1] RING-BACKUP  
19. 6V-7610 J [1] SEAL-O-RING  
20. 272-5665 [4] SEAL  
21. 3B-8488 [2] FITTING-GREASE (1/8-27 PTF)  
   
    AVAILABLE REPAIR KIT(S):
  430-8918 J [1] KIT-HYD CYLINDER SEAL  
    (INCLUDES RINGS & SEALS)
  J   KIT MARKED J SERVICES PART(S) MARKED J
 

#SEBP59800184
 

376-9683: CYLINDER GP-SWING BOOM

376-9683 CYLINDER GP-SWING BOOM
90-MM (3.6-IN) BORE X 600.5-MM (23.7-IN) STROKE
PART OF 376-6677 BOOM AR
i04589420 SEBP5980
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Parts for your 305.5E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 265-8725 [2] BUSHING  
2. 3B-8489 [1] FITTING-GREASE (1/8-27 PTF)  
3. 193-1365 [1] PISTON  
4. 193-1367 [2] RING  
5. 193-1368 [1] SEAL  
6. 272-5640 [1] RING  
7. 272-5642 [1] SEAL  
8. 272-5643 [1] RING  
9. 272-5644 [1] SEAL  
10. 272-5645 [4] SEAL  
11. 272-5659 [1] HEAD  
12. 272-5664 [1] BEARING  
13. 272-5689 [1] ROD AS  
14. 294-1867 [1] NUT (M36X4-THD)  
15. 378-9831 [1] CYLINDER AS-SWING BOOM  
16. 093-1513 [1] RING-BACKUP  
17. 095-1623 [1] SEAL-O-RING  
18. 6V-7610 [1] SEAL-O-RING  
 

#SEBP59800185
 

246-0192: CYLINDER GP-TILT

246-0192 CYLINDER GP-TILT
76.2-MM (3-IN) BORE X 120-MM (4.7-IN) STROKE
PART OF 250-4463 BUCKET AR-DITCH CLEANING, 274-9022 BUCKET AR-TILTABLE
AN ATTACHMENT
i02211774 SEBP5980
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Parts for your 305.5E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1H-7339 [1] SEAL-O-RING  
2. 6E-0122 [1] HEAD  
3. 6J-1972 J [1] SEAL AS  
4. 6J-5733 J [1] RING-WEAR  
5. 9T-2212 [1] PISTON  
6. 167-2186 J [1] SEAL AS-BUFFER  
7. 167-2294 J [1] SEAL-U-CUP  
8. 226-8202 J [1] SEAL-WIPER  
9. 249-4175 [1] ROD AS  
9A. 9T-4007 [2] BEARING  
10. Z [1] CYLINDER AS  
11. 4T-6780 J [1] RING-WEAR  
12. 5P-8250 [1] WASHER (28X49X5-MM THK)  
13. 6F-7037 [1] BOLT (1-14X3.25-IN)  
14. 8J-2574 J [1] RING-BACKUP  
   
    AVAILABLE REPAIR KIT(S):
  235-0354 J KIT-SEAL (HYDRAULIC CYLINDER)  
    '(ALSO INCLUDES BACKUP RING & O-RING SEAL)
  J   (KIT MARKED J SERVICES PART(S) MARKED J
  Z   NOT SERVICED SEPARATELY
 

#SEBP59800186
 

377-4519: DRAIN GP-OIL

377-4519 DRAIN GP-OIL -HYDRAULIC TANK
CANNOT BE USED WITH @@@@@377-4520@@@@@
AN ATTACHMENT
i04559375 SEBP5980
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Parts for your 305.5E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  Y [1] DRAIN GP-OIL (HYDRAULIC TANK)  
  Y   SEPARATE ILLUSTRATION
 

#SEBP59800187
 

377-8878: DRAIN GP-OIL

377-8878 DRAIN GP-OIL -HYDRAULIC TANK
PART OF 377-4519 DRAIN GP-OIL
AN ATTACHMENT
i04559480 SEBP5980
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Parts for your 305.5E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 148-8411 [1] PLUG AS  
  3K-0360 [1] SEAL-O-RING  
  9S-4185 [1] PLUG (3/4-16-THD)  
2. 194-2903 [1] ELBOW AS  
  3K-0360 [1] SEAL-O-RING  
  8T-0119 [1] ELBOW  
 

#SEBP59800188
 

377-8879: DRAIN GP-OIL

377-8879 DRAIN GP-OIL -ECOLOGY, HYDRAULIC TANK
PART OF 377-4520 DRAIN GP-ECOLOGY
AN ATTACHMENT
i04559481 SEBP5980
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Parts for your 305.5E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 165-2273 [1] VALVE AS-SHUTOFF (HYDRAULIC TANK DRAIN)  
  3K-0360 [1] SEAL-O-RING  
  6V-7238 [1] VALVE-SHUTOFF (HYDRAULIC TANK DRAIN)  
 

#SEBP59800189
 

282-1534: DRIVE GP-SWING

282-1534 DRIVE GP-SWING
PART OF 265-8748 MOTOR & MTG GP-SWING
i03969203 SEBP5980
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Parts for your 305.5E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 279-5482 [1] SEAL  
2. 279-5483 [1] HOLDER  
3. 279-5484 [4] RACE  
4. 279-5485 [4] BEARING  
5. 279-5486 [4] GEAR (29-TEETH)  
6. 279-5487 [1] PLATE  
7. 143-2344 [4] SCREW  
8. 279-5488 [1] GEAR (19-TEETH)  
9. 096-8058 [1] RING-RETAINING  
10. 279-5489 [1] HOLDER  
11. 279-5490 [3] WASHER  
12. 143-2350 [3] PLATE  
13. 279-5491 [3] BEARING  
14. 279-5492 [3] GEAR (27-TEETH)  
15. 279-5493 [1] GEAR (22-TEETH)  
16. 139-7308 [1] PLUG  
17. 095-1575 [1] SEAL-O-RING  
18. 279-5494 [1] SEAL-O-RING  
19. 198-7054 [1] CASE  
20. 198-7055 [1] BEARING  
21. 198-7056 [1] SHAFT  
22. 139-7316 [1] PLATE  
23. 139-7320 [1] COLLAR  
24. 139-7321 [1] SPRING  
25. 139-7322 [1] WASHER  
26. 6V-5588 [1] RING-RETAINING  
27. 139-7319 [3] PIN  
28. 279-5495 [1] HOLDER  
29. 191-1321 [1] PLATE  
30. 198-7057 [1] DISK  
31. 198-7058 [1] PISTON  
32. 095-1716 [1] SEAL-O-RING  
33. 095-1721 [1] SEAL-O-RING  
34. 279-5496 [2] SEAT  
35. 198-7060 [1] SPRING  
36. 188-4056 [1] SEAL  
37. 279-5497 [1] COVER  
38. 139-7318 [1] BEARING  
39. 139-7325 [1] PIN  
40. 150-0865 [1] PLATE  
41. 198-7062 [2] PIN  
42. 095-1587 [2] SEAL-O-RING  
43. 8T-3957 M [5] BOLT-SOCKET HEAD (M12X1.75X30-MM)  
44. 279-5498 [1] ORIFICE  
45. 198-7064 [1] VALVE AS (BRAKE CONTROL)  
46. 095-1577 [1] SEAL-O-RING  
47. 095-1580 [2] SEAL-O-RING  
48. 095-1582 [3] SEAL-O-RING  
49. 279-5500 [1] WASHER  
50. 198-7065 [1] SPRING  
51. 095-1585 [1] SEAL-O-RING  
52. 137-3687 [1] PLUG  
53. 279-5501 [2] VALVE GP-RELIEF (SWING DRIVE)  
54. 095-1592 [1] SEAL-O-RING  
55. 095-1578 [1] SEAL-O-RING  
56. 095-9258 [2] RING  
57. 139-7303 [2] VALVE (MAKEUP)  
58. 139-7304 [2] SPRING  
59. 099-7197 [2] PLUG  
60. 191-1342 [1] PLUG  
61. 095-1579 [1] SEAL-O-RING  
62. 279-4706 [2] PLUG  
63. 3J-1907 [2] SEAL-O-RING  
64. 191-1316 [1] KIT-BLOCK  
    (INCLUDES CYLINDER BLOCKS & PISTONS)
65. 279-5503 [1] KIT-PLATE  
    (INCLUDES THRUST PLATES)
66. 279-5504 [1] HOUSING AS-SWING  
67. 324-3368 [2] BOLT-SOCKET HEAD  
   
    AVAILABLE REPAIR KIT(S):
  279-5502 [1] KIT-SEAL (SWING DRIVE)  
    (INCLUDES PLUG, BACK UP RINGS & SEAL-O-RINGS)
  M   METRIC PART
 

Information:

Special Instruction
Instructions for Installation of Oversize Hydraulic Cylinder Seals {7555, 7562}
Instructions for Installation of Oversize Hydraulic Cylinder Seals {7555, 7562}
Installation of Double Lip Wiper Seal{7562}
Installation of Double Lip Wiper Seal{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}
Specifications
Bucket Cylinder
305.5E CR and 305E CR Mini Hydraulic Excavators Machine System Specifications
Blade Lift Cylinder
305.5E CR and 305E CR Mini Hydraulic Excavators Machine System Specifications
Boom Cylinder
305.5E CR and 305E CR Mini Hydraulic Excavators Machine System Specifications
Boom Cylinder
305.5E CR and 305E CR Mini Hydraulic Excavators Machine System Specifications
Swing Boom Cylinder
305.5E CR and 305E CR Mini Hydraulic Excavators Machine System Specifications
Stick Cylinder
305.5E CR and 305E CR Mini Hydraulic Excavators Machine System Specifications
Tool Operating Manual
Procedures for Using the 232-4686 Cylinder Washer Tank Group European Union Compliant{0374, 0599, 0680, 0738}
Procedures for Using the 232-4686 Cylinder Washer Tank Group European Union Compliant{0374, 0599, 0680, 0738}
1U-9001 and 1U-9002 Automatic Hone Tooling{0599, 0677, 0738, 7562, 7562}
1U-9001 and 1U-9002 Automatic Hone Tooling{0599, 0677, 0738, 7562, 7562}
Model HCS-40 Hydraulic Cylinder Servicer{0374, 0599, 0700, 0738, 7562}
Model HCS-40 Hydraulic Cylinder Servicer{0374, 0599, 0700, 0738, 7562}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
Using the 9U-7868 and 9U-7869 Spanner Wrench to Remove and install Threaded Gland Cylinder Heads{0374, 0599, 0602, 0738}
Using the 9U-7868 and 9U-7869 Spanner Wrench to Remove and install Threaded Gland Cylinder Heads{0374, 0599, 0602, 0738}
Procedures for Using the 120-9143 Cylinder Washer Tank Group {0374, 0602, 0680, 0738}
Procedures for Using the 120-9143 Cylinder Washer Tank Group {0374, 0602, 0680, 0738}
Systems Operation
Cylinders (Boom, Stick and Bucket)
305.5E CR and 305E CR Mini Hydraulic Excavators Hydraulic System
Blade Hydraulic System
305.5E CR and 305E 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}
HVOF Identification and Polishing (Superfinishing){0674, 0679, 1000, 7000, 7562}
HVOF Identification and Polishing (Superfinishing){0674, 0679, 1000, 7000, 7562}
Thermal Spray Procedures for Hydraulic Cylinder Rods{0679, 7562, 7562}
Thermal Spray Procedures for Hydraulic Cylinder Rods{0679, 7562, 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 Speed - Check
305E CR and 305.5E CR Mini Hydraulic Excavators Hydraulic System
Cylinder Drift - Check
305E CR and 305.5E 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
Stick Cylinder - Remove and Install
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Boom Cylinder - Remove and Install
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Swing Boom Cylinder - Remove and Install
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Blade Cylinder - Remove and Install
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Bucket Cylinder - Remove and Install
303E CR, 303.5E, 304E, 305.5E and 305E 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}

Caterpillar Parts SIS Catalog 305.5E :

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