Caterpillar Cat 325C FM EXCAVATOR (Prefix Y4P) Service Repair Manual Instant Download
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Service Repair Manual Models 325C FMEXCAVATOR
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 1/16 Shutdown SIS Previous Screen Product: EXCAVATOR Model: 325C FM EXCAVATOR Y4P Configuration: 325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 3126B Engine Disassembly and Assembly 325C Forest Machines Machine Systems Media Number -RENR5477-00 Publication Date -01/06/2004 Date Updated -11/06/2004 i02012672 Final Drive - Disassemble SMCS - 4050-015 S/N - S3M1-UP S/N - Y4P1-UP Disassembly Procedure Start By: A. Remove the final drive. Refer to Disassembly and Assembly, "Final Drive - Remove". Table 1 Required Tools Tool Part Number Part Description Qty 3H-0468 Puller Plate 2 5F-7366 Forcing Screw 1 8B-7548 Push-Puller Tool Gp 1 A 8T-0070 Bolt 2 8T-3282 Hard Washer 2 1P-0520 Driver Gp 1 B 1U-8223 Lifting Sling 2 C 1P-2321 Combination Puller 1 D 4C-8358 Eyebolt 3 E 156-7100 Slide Hammer Puller Gp 1 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 2/16 M5x0.8x1.5 Bolt 1 F 10mm Drill 1 G 1P-7407 Eyebolt 2 H 199-6557 Spanner Socket 1 I 4C-8359 Eyebolt 2 J 127-8458 Final Drive Bench Ar 1 K 127-8468 Reaction Bar As 1 3S-6224 Electric Hydraulic Pump Gp 1 8T-0820 Hydraulic Pressure Gauge 1 3B-7722 Pipe Bushing 2 L 1P-2376 Quick Connect Coupler 2 1P-2377 Dust Plug 2 8F-0024 Hose As 2 M 128-4075 Shaft As 1 N 194-3885 Adapter Plate 1 Q 4C-8359 Eyebolt 2 R 1U-8758 Retaining Ring Pliers 1 S 1P-1863 Retaining Ring Pliers 1 T 1P-1859 Retaining Ring Pliers 1 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
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325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 3/16 Illustration 1 g00903052 Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. 1. Install Tooling (A). Apply slight pressure to plate (1). Use Tooling (R) to remove retaining ring (2) . 2. Carefully remove Tooling (A) . 3. Remove plate (1) . 4. Remove O-ring seal (3) . Illustration 2 g00903050 5. Remove springs (4) . 6. Remove piston (5) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 4/16 Illustration 3 g00903054 a. Remove piston seals (6) from piston (5) . Illustration 4 g00903611 7. Remove coupler (7) . 8. Remove brake discs (8) . Illustration 5 g00903613 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 5/16 9. Remove bottom brake plate (9) . Illustration 6 g00903031 10. Turn over the final drive. 11. Attach Tooling (B). Use a suitable lifting device. Remove sprocket (10). The weight of sprocket (10) is approximately 48 kg (106 lb). 12. Remove cover (11). Illustration 7 g00903120 13. Remove sun gear (12). Remove planetary gear set (13). Use Tooling (S) to remove retaining rings (14) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 6/16 Illustration 8 g00903432 Typical example a. Install Tooling (C). Remove gears (15) . Illustration 9 g00903928 b. Cut a notch in the bearing cup. Remove one row of bearing rollers through the notch. After the bearing rollers are out, the remaining parts will drop out. Remove the retaining ring from the bearing cup. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 7/16 Illustration 10 g00903433 14. Remove planetary gear set (16) . a. Use Tooling (T) to remove retaining rings (17) . Illustration 11 g00903459 Typical example b. Install Tooling (C). Remove gear (18) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 8/16 Illustration 12 g01041922 15. Remove bolts (19) . 16. Use Tooling (T) to remove retainer ring (19A) . Illustration 13 g00903471 17. Install Tooling (D). Use a suitable lifting device. The weight of planetary gear set (20) is approximately 36 kg (80 lb). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 9/16 Illustration 14 g00903517 Illustration 15 g00903699 a. Install Tooling (C). Remove gear (21) . b. Use Tooling (R) to remove retaining ring (22) . Illustration 16 g00903703 18. Rotate ring (23) for one notch. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY ... 10/16 19. Remove ring (23) . Illustration 17 g00903711 20. Install Tooling (E) into dowel pin (24). Remove dowel pin (24) from locknut (25) . Note: The threads for the nut will be damaged from the dowel pins. 21. Use Tooling (F) to drill the holes in order to remove the damaged threads. 127-8458 Final Drive Disassembly and Assembly Bench Note: The following procedure is for the 127-8458 Final Drive Disassembly and Assembly Bench . Note: Refer to the Tool Operating Manual, NEHS0673 for further procedures concerning 127- 8458 Bench . Illustration 18 g00910492 1. Remove the hoist from Tooling (Q) and attach four chains and a hoist to the upper half of Tooling (J) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY ... 11/16 2. Remove the upper half of Tooling (J). The weight of the upper half is approximately 816 kg (1800 lb). 3. Install Tooling (N) onto the lower half of Tooling (J). The weight of Tooling (N) is approximately 100 kg (221 lb). Illustration 19 g01042049 4. Fasten Tooling (Q) and a hoist to the final drive. Keep the hoist attached. 5. Fasten the final drive onto the lower half of Tooling (N). Illustration 20 g00910490 6. Install bolts (27) in the final drive through adapter ring (26) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY ... 12/16 Illustration 21 g00910478 7. Fasten Tooling (G) and a hoist to Tooling (H) . 8. Lower Tooling (H) into the final drive. Make sure that the notches in nut (25) are aligned with the keys on Tooling (H). The weight of Tooling (H) is approximately 45 kg (100 lb). 9. Remove Tooling (Q) and the hoist. Illustration 22 g00910496 10. Place Tooling (K) onto Tooling (H) . 11. Fasten a hoist to the upper half of Tooling (J) and install the upper half of Tooling (J) to the lower half of Tooling (J). Pin the two halves together. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY ... 13/16 Illustration 23 g00910497 12. Attach Tooling (L) to the pressure reducing valve manifold, as shown. 13. Set the torque level for the bench to 2000 psi (14500 lb ft). Do not exceed this pressure. Refer to the Tool Operating Manual, NEHS0673 for setting the torque level. Illustration 24 g00910500 14. Place Tooling (M) through the bench and into Tooling (K) . 15. Remove locknut (25). The breakaway torque will vary. The nut will loosen usually at 1400 psi (10750 lb ft). 16. Fasten a hoist to the upper half of Tooling (J) . 17. Remove the upper half of Tooling (J) . Disassembly Procedure for the Main Housing and the Motor Housing https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY ... 14/16 Illustration 25 g01042049 1. Fasten Tooling (Q) and a hoist to main housing (29), as shown. 2. Separate the main housing (29) from the motor housing (30). The weight of the main housing is approximately 123 kg (270 lb). Note: Two outer races and one roller bearing will be removed with the main housing. The other roller bearing and the two Duo-cone seal kits will remain with the motor housing. 3. Disassemble motor housing (30), as follows: Illustration 26 g00910506 a. Use two screwdrivers and remove bearing (31) from the motor housing. b. Remove the Duo-cone seal kit (32) from the motor housing. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY ... 15/16 Illustration 27 g00910508 c. Remove the two backup rings and O-ring seal (33) from the motor housing. 4. Disassemble the main housing (29), as follows: Illustration 28 g00910510 a. Remove bearing (34) from the main housing (29) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY ... 16/16 Illustration 29 g00910511 b. Turn main housing (29) over 180 degrees, as shown. c. Remove seal (35) . d. Remove bearing (36) . Copyright 1993 - 2020 Caterpillar Inc. Sun Jun 28 10:51:50 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 1/14 Shutdown SIS Previous Screen Product: EXCAVATOR Model: 325C FM EXCAVATOR Y4P Configuration: 325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 3126B Engine Disassembly and Assembly 325C Forest Machines Machine Systems Media Number -RENR5477-00 Publication Date -01/06/2004 Date Updated -11/06/2004 i02013082 Final Drive - Assemble SMCS - 4050-016 S/N - S3M1-UP S/N - Y4P1-UP Assembly Procedure Table 1 Required Tools Tool Part Number Part Description Qty 3H-0468 Puller Plate 2 5F-7366 Forcing Screw 1 8B-7548 Push-Puller Tool Gp 1 A 8T-0070 Bolt 2 8T-3282 Hard Washer 2 1P-0520 Driver Gp 1 B 1U-8223 Lifting Sling 2 D 4C-8358 Eyebolt 3 G 1P-7407 Eyebolt 2 H 199-6557 Spanner Wrench As 1 J 127-8458 Final Drive Bench Ar 1 K 127-8468 Reaction Bar As 1 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 2/14 3S-6224 Electric Hydraulic Pump Gp 1 8T-0820 Hydraulic Pressure Gauge 1 3B-7722 Pipe Bushing 2 L 1P-2376 Quick Connect Coupler 2 1P-2377 Plug As 2 8F-0024 Hose As 2 M 128-4075 Shaft As 1 N 154-9315 Thread File 1 P 126-3994 Duo-Cone Seal Installer As 1 Q 4C-8359 Eyebolt 2 R 1U-8758 Retaining Ring Pliers 1 S 1P-1863 Retaining Ring Pliers 1 T 1P-1859 Retaining Ring Pliers 1 Assembly Procedure for the Main Housing 1. Assemble main housing (3), as follows: Illustration 1 g00911498 a. Install bearing race (2) . b. Install seal (1) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 3/14 Illustration 2 g00911499 c. Turn main housing (3) over 180 degrees, as shown. d. Install bearing (4) . 2. Assemble motor housing (6), as follows: Illustration 3 g00911506 a. Install the two backup rings and O-ring seal (7) in the motor housing. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 4/14 Illustration 4 g00911509 b. Install bearing (8) . c. Use Tooling (P) to install Duo-cone seal kit (9) . Illustration 5 g01041013 3. Place main housing (3) on motor housing (6) . 4. Remove Tooling (Q) and the hoist. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 5/14 Illustration 6 g00913031 5. Use Tooling (N) to clean the threads that are on locknut (10) . 6. Install locknut (10) . Illustration 7 g01041026 7. Fasten Tooling (G) and a hoist to Tooling (H) . 8. Lower Tooling (H) into the final drive. Make sure that the notches in locknut (10) are aligned with the keys on Tooling (H). Tooling (H) weighs approximately 45 kg (100 lb). Illustration 8 g01041033 9. Place Tooling (K) onto Tooling (H) . 10. Fasten a hoist to the upper half of Tooling (J) and install the upper half of Tooling (J) to the lower half of Tooling (J). Pin the two halves together. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 6/14 Illustration 9 g01041040 11. Attach Tooling (L) to the pressure reducing valve manifold, as shown. 12. Set the torque level for the bench to 4000 N m (2950 lb ft). Do not exceed this pressure. Refer to the Tool Operating Manual, NEHS0673 for setting the torque level. Illustration 10 g01041205 13. Place Tooling (M) through the bench and into Tooling (K) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 7/14 Illustration 11 g01041252 14. Tighten locknut (10) to a torque of 4000 N m (2950 lb ft). 15. Fasten a hoist to the upper half of Tooling (J) . 16. Remove the upper half of Tooling (J) . Illustration 12 g00913936 17. Install dowel pin (11) into locknut (10) . Note: Do not reuse the old holes for the dowel pins. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 8/14 Illustration 13 g00904392 18. Rotate ring (12) for one notch until the ring locks in place. Illustration 14 g00904394 Illustration 15 g00904395 19. Use Tooling (R) to install retaining ring (15). 20. Install gears (14) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY 31... 9/14 21. Use Tooling (T) to install retaining ring (13) . Illustration 16 g01041256 22. Install Tooling (D) and a suitable lifting device to planetary gear (16). The weight of planetary gear set (16) is approximately 36 kg (80 lb). Position the planetary gear set into the housing. Illustration 17 g00904396 23. Install bolts (17) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
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325C FOREST SWING MACHINES Y4P00001-UP (MACHINE) POWERED BY ... 10/14 Illustration 18 g00914441 24. Install gears (18) . Illustration 19 g00904397 25. Install planetary gear set (19) . a. Use Tooling (T) to install retaining ring (20) . Illustration 20 g00904399 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/6/28
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