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126-1915 MOTOR & MTG GP-SWING S/N 2NW1-UP LEFT SWING DRIVE PART OF 139-1426 DRIVE GP-SWING 345B EXCAVATOR


HYDRAULIC SYSTEM
MOTOR GP
ELECTRICAL AND STARTING SYSTEM
GENERATOR GP
HYDRAULIC SYSTEM
MOTOR GP
MOUNTING GP

EXCAVATOR 345B EXCAVATOR 2NW
 345B Excavator 2NW00001-UP (MACHINE) POWERED BY 3176C Engine SEBP2825 345B 2NW   (1998)

HYDRAULIC SYSTEM

MOTOR GP
HEAD GP-MOTOR
126-2026 HEAD GP-MOTOR
MOTOR & MTG GP-SWING
126-1915 MOTOR & MTG GP-SWING
MOTOR & MTG GP-SWING
126-1916 MOTOR & MTG GP-SWING
MOTOR & MTG GP-TRAVEL
137-3790 MOTOR & MTG GP-TRAVEL
MOTOR GP-HYDRAULIC GENERATOR
251-8483 MOTOR GP-HYDRAULIC GENERATOR
 

#SEBP28250350
 

126-1915: MOTOR & MTG GP-SWING

126-1915 MOTOR & MTG GP-SWING
S/N 2NW1-UP
LEFT SWING DRIVE
PART OF 139-1426 DRIVE GP-SWING
i00513764 SEBP2825
1261915 MOTOR & MTG GP-SWING Parts scheme
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Parts for your 345B EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 123-1998 Y [1] MOTOR GP-SWING  
2. 6V-5200 [1] RING-RETAINING  
3. 7X-2553 M [16] BOLT (M16X2X40-MM)  
4. 9X-8257 [16] WASHER (17.5X30X3.5-MM THK)  
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP28250351
 

126-1916: MOTOR & MTG GP-SWING

126-1916 MOTOR & MTG GP-SWING
S/N 2NW1-UP
RIGHT SWING DRIVE
PART OF 139-1427 DRIVE GP-SWING
i00661692 SEBP2825
1261916 MOTOR & MTG GP-SWING Parts scheme
  For full view, you need register

Parts for your 345B EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 147-5789 Y [1] MOTOR GP-SWING  
2. 6V-5200 [1] RING-RETAINING  
3. 7X-2553 M [16] BOLT (M16X2X40-MM)  
4. 9X-8257 [16] WASHER (17.5X30X3.5-MM THK)  
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP28250352
 

137-3790: MOTOR & MTG GP-TRAVEL

137-3790 MOTOR & MTG GP-TRAVEL
S/N 2NW1-UP
PART OF 136-2808 DRIVE GP-FINAL
i00827179 SEBP2825
1373790 MOTOR & MTG GP-TRAVEL Parts scheme
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Parts for your 345B EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 137-3791 Y [1] MOTOR GP-TRAVEL  
2. 8T-6430 M [4] BOLT (M20X2.5X50-MM)  
3. 8T-4123 [4] WASHER (3.62X5.75X0.375-MM THK)  
4. 2D-9572 [1] SEAL-O-RING  
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP28250353
 

251-8483: MOTOR GP-HYDRAULIC GENERATOR

251-8483 MOTOR GP-HYDRAULIC GENERATOR
S/N 2NW1-UP
PART OF 187-3641 GENERATOR GP-HYDRAULIC
AN ATTACHMENT
i02170334 SEBP2825
2518483 MOTOR GP-HYDRAULIC GENERATOR Parts scheme
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Parts for your 345B EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 095-0940 [1] RING-RETAINING  
2. 253-3458 [1] COVER  
3. 8U-2564 [1] SEAL  
4. 253-3462 [1] SEAL-O-RING  
5. 117-8183 [1] RING  
6. 117-8801 [1] SEAL-O-RING  
7. 179-0202 M [4] BOLT (M12X1.75X65-MM)  
  M   METRIC PART
 

#SEBP28250354
 

155-9107: MOTOR GP-PISTON

155-9107 MOTOR GP-PISTON
S/N 2NW1-UP
PART OF 141-8559 RADIATOR & FAN GP
i00814892 SEBP2825
1559107 MOTOR GP-PISTON Parts scheme
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Parts for your 345B EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8T-9597 [1] RING-RETAINING  
2. 155-9127 [1] SEAL  
3. 155-9120 [1] HOUSING  
4. 155-9122 [1] SWASHPLATE  
5. 155-9111 Y [1] ROTATING GP-PUMP (HYDRAULIC FAN)  
6. 155-9148 [1] SEAL-O-RING  
7. 155-9121 [1] COVER  
8. 095-0655 M [2] BOLT-SOCKET HEAD  
9. 099-3047 [1] DOWEL  
10. 155-9126 [1] BEARING  
11. 155-9124 [1] SHIM  
12. 101-2862 [2] DOWEL  
13. 9S-8005 [1] PLUG (3/4-16-THD)  
15. 155-9125 [1] BEARING AS-ROLLER  
16. 155-9123 [1] SHAFT  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP28250355
 

123-1998: MOTOR GP-SWING

123-1998 MOTOR GP-SWING
S/N 2NW1-UP
PART OF 126-1915 MOTOR & MTG GP-SWING
i00649803 SEBP2825
1231998 MOTOR GP-SWING Parts scheme
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Parts for your 345B EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 137-3715 Y [2] VALVE GP-RELIEF  
2. 095-1573 [2] SEAL-O-RING  
3. 9X-8256 [6] WASHER (6.6X12X2-MM THK)  
4. 8T-6974 M [3] BOLT (M6X1X80-MM)  
5. 137-3713 Y [1] VALVE GP-SOLENOID (SWING PARKING BRAKE)  
6. 137-3717 Y [1] MOTOR GP-SWING  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP28250356
 

137-3717: MOTOR GP-SWING

137-3717 MOTOR GP-SWING
S/N 2NW1-UP
PART OF 123-1998, 147-5789 MOTOR GP-SWING
i00670321 SEBP2825
1373717 MOTOR GP-SWING Parts scheme
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Parts for your 345B EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 137-3712 [1] BODY  
2. 5I-8630 [3] PLATE-FRICTION  
3. 5I-8629 [4] PLATE-SEPARATOR  
4. 5I-8426 J [1] SEAL-O-RING  
5. 5I-8417 J [1] SEAL-O-RING  
6. 7Y-4274 [1] PLUG  
7. 095-1579 J [1] SEAL-O-RING  
8. 5I-8623 J [1] SEAL-O-RING  
9. 126-2055 [24] SPRING  
10. 5I-8632 [1] PISTON AS  
11. 5I-8420 [12] PIN  
12. 110-5525 [2] PLUG  
13. 3J-1907 J [2] SEAL-O-RING  
14. 5I-8625 [1] BEARING  
15. 7Y-5267 [1] RING-RETAINING  
16. 126-2026 Y [1] HEAD GP-MOTOR  
17. 5I-8422 [1] SPRING  
18. 5I-8628 [1] PLATE-VALVE  
19. 5I-8631 [1] BARREL  
20. 5I-8621 [1] PISTON-BRAKE  
21. 5I-8421 [2] SPACER  
22. 5I-8633 [1] SPACER  
23. 5I-8636 [1] PLATE-RETAINER  
24. 5I-8637 [1] PLATE  
25. 122-5318 [1] BEARING  
26. 5I-8640 [1] SHAFT-DRIVE  
27. 5I-8418 [1] PLATE  
28. 085-5593 [1] RING-RETAINING  
29. 122-5319 J [1] SEAL-OIL  
30. 5I-8634 [1] BUSHING  
31. 7Y-4268 [2] SPRING  
32. 095-1593 J [2] SEAL-O-RING  
33. 094-1900 [2] PLUG  
34. 7Y-4267 [2] VALVE  
35. 7Y-5221 M [4] BOLT-SOCKET HEAD (M20X2.5X45-MM)  
   
    AVAILABLE REPAIR KIT(S):
  126-2029 J [1] KIT-SEAL  
  J   KIT MARKED J INCL PARTS MARKED J
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP28250357
 

147-5789: MOTOR GP-SWING

147-5789 MOTOR GP-SWING
S/N 2NW1-UP
PART OF 126-1916 MOTOR & MTG GP-SWING
i00663006 SEBP2825
1475789 MOTOR GP-SWING Parts scheme
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Parts for your 345B EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8T-6759 [1] PLUG-PIPE  
2. 137-3717 Y [1] MOTOR GP-SWING  
3. 147-5777 Y [2] VALVE GP-RELIEF  
4. 095-1573 [2] SEAL-O-RING  
5. 9X-8256 [6] WASHER (6.6X12X2-MM THK)  
6. 7X-2533 M [3] BOLT (M6X1X35-MM)  
7. 137-3716 [1] BODY  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP28250358
 

137-3791: MOTOR GP-TRAVEL

137-3791 MOTOR GP-TRAVEL
S/N 2NW1-UP
PART OF 137-3790 MOTOR & MTG GP-TRAVEL
i00558272 SEBP2825
1373791 MOTOR GP-TRAVEL Parts scheme
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Parts for your 345B EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6I-6988 [1] ROD  
2. 8T-4133 M [2] NUT (M10X1.5-THD)  
3. 095-1514 J [2] SEAL-O-RING  
4. 9T-3941 [3] PLUG-BREAK OFF  
5. 6I-6982 [2] PISTON  
6. 107-6548 [2] ROD  
7. 107-6549 [1] PLATE  
8. 6I-6986 [1] ROD  
9. 126-2045 Y [1] ROTATING GP-MOTOR  
10. 7I-7556 [1] RING  
11. 095-1513 J [2] SEAL-O-RING  
12. 087-4785 [2] PLUG-BREAK OFF  
13. 6I-6987 [1] BUSHING  
14. 6V-8398 J [1] SEAL-O-RING  
15. 107-6582 [1] STOP  
16. 6V-5683 M [2] BOLT (M6X1X16-MM)  
17. 7I-7555 [2] PLUG AS  
18. 7I-7557 [2] VALVE GP-CHECK  
19. 087-4774 [1] NOZZLE  
20. 7I-7554 J [1] SEAL-O-RING  
21. 135-8852 Y [1] BRAKE GP-PARKING  
22. 135-8853 [1] PLUG  
23. 095-0658 M [12] BOLT-SOCKET HEAD (M10X1.5X70-MM)  
24. 095-0924 [2] RING-RETAINING  
25. 7I-0033 J [1] SEAL-LIP TYPE  
26. 8T-5042 M [4] BOLT (M20X2.5X50-MM)  
27. 6I-6985 [1] HEAD  
28. 7I-7553 J [1] SEAL-O-RING  
29. 9S-8008 [2] PLUG (1-1/16-12-THD)  
30. 6I-6984 [1] HOUSING  
31. 9T-3928 [5] PLUG AS  
32. 7I-0034 Y [1] VALVE GP-MOTOR CONTROL  
33. 9T-3940 [2] PLUG-BREAK OFF  
34. 5W-9411 [1] SEAL-O-RING  
   
  7I-0036 F [1] TUBE AS  
    (INCLUDES CONNECTING FITTINGS)
   
    AVAILABLE REPAIR KIT(S):
  7I-7326 J [1] KIT-SEAL (TRAVEL MOTOR)  
  F   NOT SHOWN
  J   KIT MARKED J INCLUDES PART(S) MARKED J
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP28250359
 

128-7435: MOUNTING GP-MAIN CONTROL VALVE

128-7435 MOUNTING GP-MAIN CONTROL VALVE
S/N 2NW1-UP
PART OF 146-2633 HYDRAULIC AR
i00521872 SEBP2825
1287435 MOUNTING GP-MAIN CONTROL VALVE Parts scheme
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Parts for your 345B EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8T-6430 M [4] BOLT (M20X2.5X50-MM)  
2. 6C-9149 [4] WASHER (22X50X10-MM THK)  
3. 129-5920 [1] BRACKET AS  
  7T-1099 [2] LINK  
4. 8T-5460 M [4] BOLT (M20X2.5X40-MM)  
5. 8T-4123 [8] WASHER (3.62X5.75X0.375-MM THK)  
6. 102-1174 BE GUARD  
  B   USE AS REQUIRED
  E   ORDER BY THE CENTIMETER
  M   METRIC PART
 

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}
Technical Information Bulletin
Increased Case Drain Pressure May Cause Swing Motor Failure (Reoccurence)
Increased Case Drain Pressure May Cause Swing Motor Failure (Reoccurence)
Specifications
Travel Counterbalance Valve
345B Excavator and 345B Material Handler Machine System Specifications
Swing Motor - Left
345B Excavator and 345B Material Handler Machine System Specifications
Swing Motor - Right
345B Excavator and 345B Material Handler Machine System Specifications
Travel Motor
345B Excavator and 345B Material Handler Machine System Specifications
Check Valve (Fan Drive Motor)
345B Excavator and 345B Material Handler Machine System Specifications
Fan Drive Motor - Performance Test
345B Excavator and 345B Material Handler Machine System Specifications
Tool Operating Manual
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}
Systems Operation
Travel Motor
345B Excavator Hydraulic System
Relief Valve (Crossover)
345B Excavator Hydraulic System
Travel Counterbalance Valve
345B Excavator Hydraulic System
Swing Hydraulic System
345B Excavator Hydraulic System
Swing Motor
345B Excavator Hydraulic System
Reuse And Salvage Guidelines
Specifications For Piston Motor Components On Travel Circuit Of MS180-8 and MS240-8 Hydraulic Excavators
Specifications For Piston Motor Components On Travel Circuit Of MS180-8 and MS240-8 Hydraulic Excavators
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
Swing Motor - Test - Measurement of Case Drain Oil
345B Excavator Hydraulic System
Travel Motor - Test - Measurement of Case Drain Oil
345B Excavator Hydraulic System
Relief Valve (Crossover) - Test and Adjust
345B Excavator 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}
Troubleshooting
Cooling Fan Control - Test
3176C Engine for Caterpillar Built Machines
Disassembly and Assembly
Final Drive and Travel Motor - Remove
345B, 345B Series II and W345B Series II Excavators Machine Systems
Final Drive and Travel Motor - Install
345B, 345B Series II and W345B Series II Excavators Machine Systems
Travel Motor - Remove - Series I
345B, 345B Series II and W345B Series II Excavators Machine Systems
Travel Motor - Install - Series I
345B, 345B Series II and W345B Series II Excavators Machine Systems
Travel Motor - Disassemble - Series I
345B, 345B Series II and W345B Series II Excavators Machine Systems
Travel Motor - Assemble - Series I
345B, 345B Series II and W345B Series II Excavators Machine Systems
Swing Motor - Remove - Left Motor for Series I
345B, 345B Series II and W345B Series II Excavators Machine Systems
Swing Motor - Install - Left Motor for Series I
345B, 345B Series II and W345B Series II Excavators Machine Systems
Swing Motor - Remove - Right Motor for Series I
345B, 345B Series II and W345B Series II Excavators Machine Systems
Swing Motor - Install - Right Motor for Series I
345B, 345B Series II and W345B Series II Excavators Machine Systems
Swing Motor - Disassemble - Series I
345B, 345B Series II and W345B Series II Excavators Machine Systems
Swing Motor - Assemble - Series I
345B, 345B Series II and W345B Series II Excavators Machine Systems
Fan Drive Motor - Remove and Install
345B, 345B Series II and W345B Series II Excavators Machine Systems
Service Magazine
Procedure for the Measurement of the Movement of the Swing Bearing {5459, 7063}
2004/10/18
Procedure to Identify Correct Rotational Direction of Hydraulic Fan Motor Group {1386, 5058}
2004/12/20

Caterpillar Parts SIS Catalog 345B :

MANIFOLD GP-CONTROL
111-9950 MANIFOLD GP-CONTROL
LINES GP-TRAVEL MOTOR
149-3367 LINES GP-TRAVEL MOTOR
LINES GP-SWING MOTOR
128-7439 LINES GP-SWING MOTOR
LINES GP-STICK
155-6551 LINES GP-STICK
LINES GP-STICK
150-5482 LINES GP-STICK
LINES GP-RETURN
153-7928 LINES GP-RETURN
LINES GP-RETURN
153-4852 LINES GP-RETURN
LINES GP-RETURN
153-2208 LINES GP-RETURN
MOTOR & MTG GP-SWING
126-1916 MOTOR & MTG GP-SWING
MOTOR & MTG GP-TRAVEL
137-3790 MOTOR & MTG GP-TRAVEL
MOTOR GP-HYDRAULIC GENERATOR
251-8483 MOTOR GP-HYDRAULIC GENERATOR
MOTOR GP-PISTON
155-9107 MOTOR GP-PISTON
MOTOR GP-SWING
123-1998 MOTOR GP-SWING
MOTOR GP-SWING
137-3717 MOTOR GP-SWING
MOTOR GP-SWING
147-5789 MOTOR GP-SWING
MOTOR GP-TRAVEL
137-3791 MOTOR GP-TRAVEL

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