Caterpillar Cat 325D FM EXCAVATOR (Prefix C7K) Service Repair Manual (C7K00001 and up).pdf

Service Repair Manual
Models
325D FM EXCAVATOR

Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 325D FM EXCAVATOR C7K
Configuration: 325D Forest Swing Machine General Forestry Application High Wide Undercarriage C7K00001-UP (MACHINE) POWERED BY C7 Engine
Disassembly and Assembly
324D and 325D Forest Machines Machine Systems
Media Number -KENR5986-02 Publication Date -01/02/2012 Date Updated -27/06/2017
i02568192
Travel Motor - Install
SMCS - 4351-012
Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A -
Threaded Rod
M20 by 381 mm (15 inch)
2
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting, and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Dealer Service Tool
Catalog" for tools and supplies suitable to collect and contain fluids on
Cat products.
Dispose of all fluids according to local regulations and mandates.
1. Thoroughly clean the mating surfaces of the travel motor and the final drive.
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325D Forest Swing Machine General Forestry Application High Wide Undercarriage ...
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https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

Illustration 1 g01286512
2. Attach a suitable lifting device to travel motor (5). The weight of travel motor (5) is approximately 61 kg
(135 lb). Install travel motor (5). Remove Tooling (A).
3. Install two bolts (3) that secure travel motor (5) to the final drive. Connect hose assemblies (4).
4. Remove bolts (1) and cover (2).
5. Fill the final drive with oil. Refer to Operation and Maintenance Manual, "Final Drive Oil - Change".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Wed Jun 17 01:00:29 UTC+0800 2020
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2020/6/17

Shutdown SIS
Previous Screen
Product: EXCAVATOR
i02568277
Final Drive - Remove
SMCS - 4050-011
Removal Procedure
Start By:
a. Separate the track. Refer to Disassembly and Assembly, "Track - Separate".
b. Remove the travel motor. Refer to Disassembly and Assembly, "Travel Motor - Remove".
Table 1
Required Tools
A - Guide Bolts M20 - 2.5mm by 100mm 2
B 138-7574 Link Bracket 1
1. Position the cab out of the way of the final drive.
2. Raise the machine. Place suitable blocks between the track and the machine. The blocks will allow the final
drive sprocket to pass over the top of the track.
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3. Remove two mounting bolts (1) for final drive assembly (4). Install Tooling (A).
4. Remove one top bolt (2) for sprocket (3). Attach a suitable lifting device and Tooling (B) to sprocket (3). The
combined weight of final drive assembly (4) and sprocket (3) is approximately 318 kg (700 lb).
5. Remove remaining bolts (1) and final drive assembly (4).
Wed Jun 17 01:01:24 UTC+0800 2020
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
i02568643
Final Drive - Disassemble
SMCS - 4050-015
Disassembly Procedure
Start By:
a. Remove the final drive. Refer to Disassembly and Assembly, "Final Drive - Remove".
Table 1
Required Tools
A
3H-0468 Puller Plate 2
5F-7366 Forcing Screw 1
8B-7548 Push-Puller Tool Gp 1
8T-0070 Bolt 2
8T-3282 Hard Washer 2
B 1P-0520 Driver Gp 1
C 1P-2321 Combination Puller 1
D 138-7573 Link Bracket 3
E
156-7100 Slide Hammer Puller Gp 1
M5x0.8x1.5 Bolt 1
F 10mm Drill 1
G 138-7575 Link Bracket 3
H 199-6557 Spanner Socket 1
J 127-8458 Final Drive Bench Ar 1
K 127-8468 Reaction Bar As 1
L 3S-6224 Electric Hydraulic Pump Gp 1
8T-0820 Hydraulic Pressure Gauge 1
3B-7722 Pipe Bushing 2
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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
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) and Tooling (B). Apply slight pressure to plate (1). Remove retaining ring (2).
2. Carefully remove Tooling (A) and Tooling (B).
3. Remove plate (1).
4. Remove O-ring seal (3).
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5. Remove springs (4).
6. Remove piston (5).
a. Remove piston seals (6) from piston (5).
7. Remove coupler (7).
8. Remove brake discs (8).
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9. Remove bottom brake plate (9).
10. Turn over the final drive.
11. Attach a suitable lifting device to sprocket (10). The weight of sprocket (10) is approximately 41 kg (90 lb).
Remove sprocket (10).
12. Remove cover (11).
13. Remove sun gear (12). Remove planetary gear set (13). Remove retaining rings (14).
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a. Install Tooling (C). Remove gears (15).
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.
14. Remove planetary gear set (16).
a. Remove retaining rings (17).
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b. Install Tooling (C). Remove gear (18).
15. Remove bolts (19).
16. Remove retainer ring (19A).
17. Install Tooling (D) and a suitable lifting device to planetary gear set (20). The weight of planetary gear set (20)
is approximately 36 kg (80 lb).
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a. Install Tooling (C). Remove gear (21).
b. Remove retaining ring (22).
18. Rotate ring (23) for one notch.
19. Remove ring (23).
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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.
Reference: Refer to the Tool Operating Manual, NEHS0673 for further procedures concerning 127-8458 Bench.
1. Remove the suitable lifting device from Tooling (G) and attach the suitable lifting device to the upper half of
Tooling (J).
2. Remove the upper half of Tooling (J). The weight of the upper half of Tooling (J) 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).
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4. Fasten Tooling (G) and a suitable lifting device to the final drive.
5. Fasten the final drive onto the lower half of Tooling (N).
6. Install bolts (27) in the final drive through adapter ring (26).
7. Fasten Tooling (G) and a suitable lifting device to Tooling (H). The weight of Tooling (H) is approximately
45 kg (100 lb).
8. Lower Tooling (H) into the final drive. Make sure that the notches in nut (25) are aligned with the keys on
Tooling (H).
9. Remove Tooling (I) and the suitable lifting device.
10. Place Tooling (K) onto Tooling (H).
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11. Fasten a suitable lifting device 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.
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.
Reference: Refer to the Tool Operating Manual, NEHS0673 for setting the torque level.
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 suitable lifting device 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
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325D Forest Swing Machine General Forestry Application High Wide Undercarriag...
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1. Fasten Tooling (G) and a suitable lifting device 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:
a. Use two screwdrivers and remove bearing (31) from the motor housing.
b. Remove the Duo-cone seal kit (32) from the motor housing.
c. Remove the two backup rings and O-ring seal (33) from the motor housing.
4. Disassemble the main housing (29), as follows:
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a. Remove bearing (34) from the main housing (29).
b. Turn main housing (29) over 180 degrees, as shown.
c. Remove seal (35).
d. Remove bearing (36).
Wed Jun 17 01:02:20 UTC+0800 2020
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
i07141171
Final Drive - Assemble
SMCS - 4050-016
Assembly Procedure
Table 1
Required Tools
A 126-3994 Duo-Cone Seal Installer As 1
B 138-7573 Link Bracket 3
C 127-8458 Final Drive Bench Ar 1
D 154-9315 Thread File Group 1
E 138-7575 Link Bracket 2
F 199-6557 Spanner Wrench As 1
G 127-8468 Reaction Bar As 1
H
3S-6224 Electric Hydraulic Pump Gp 1
8T-0820 Hydraulic Pressure Gauge 1
3B-7722 Pipe Bushing 2
1P-2376 Quick Connect Coupler 2
1P-2377 Dust Plug 2
8F-0024 Hose As 2
I 128-4075 Shaft As 1
K 1P-0520 Driver Gp 1
L 1U-8223 Lifting Sling 2
M 3H-0468 Puller Plate 2
5F-7366 Forcing Screw 1
8B-7548 Push-Puller Tool Gp 1
8T-0070 Bolt 2
8T-3282 Hard Washer 2
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1P-0520 Driver Gp 1
Assembly Procedure for the Main Housing
1. Assemble main housing (3), as follows:
a. Install bearing race (2).
b. Install seal (1).
c. Turn main housing (3) over 180 degrees, as shown.
d. Install bearing (4).
2. Assemble motor housing (6), as follows:
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a. Install the two backup rings and O-ring seal (7) in the motor housing.
b. Install bearing (8).
c. Use Tooling (A) to install Duo-cone seal kit (9).
3. Place main housing (3) on motor housing (6).
4. Remove Tooling (B) and the suitable lifting device.
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5. Use Tooling (D) to clean the threads that are on locknut (10).
6. Install locknut (10).
7. Fasten Tooling (E) and a suitable lifting device to Tooling (F).
8. Lower Tooling (F) into the final drive. Make sure that the notches in locknut (10) are aligned with the keys on
Tooling (F). The weight of Tooling (F) is approximately 45 kg (100 lb).
9. Place Tooling (G) onto Tooling (F).
10. Fasten a suitable lifting device to the upper half of Tooling (C) and install the upper half of Tooling (C) to the
lower half of Tooling (C). Pin the two halves together.
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11. Attach Tooling (H) 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.
Reference: Refer to the Tool Operating Manual, NEHS0673 for setting the torque level.
13. Place Tooling (I) through the bench and into Tooling (G).
14. Install locknut (10). Tighten locknut (10) to a torque of 4000 N·m (2950 lb ft).
15. Fasten a hoist to the upper half of Tooling (C).
16. Remove the upper half of Tooling (C).
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17. Install dowel pin (11) into locknut (10).
Note: Do not reuse the old holes for the dowel pins.
18. Rotate ring (12) for one notch until the ring locks in place.
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19. Install retaining ring (15).
20. Install gears (14).
21. Install retaining ring (13).
22. Install Tooling (B) and a suitable lifting device to planetary gear set (16). The weight of planetary gear set (16)
is approximately 36 kg (80 lb). Position the planetary gear set into the housing.
23. Install bolts (17).
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Typical Example
24. Install gears (18). Install sun gear (18A) and the retaining ring.
25. Install planetary gear set (19).
a. Install retaining ring (20).
26. Install gears (21). Install sun gear (21A) and the retaining ring.
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Caterpillar Cat 325D FM EXCAVATOR (Prefix C7K) Service Repair Manual (C7K00001 and up).pdf

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Caterpillar Cat 325D FM EXCAVATOR (Prefix C7K) Service Repair Manual (C7K00001 and up).pdf