2. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 390D L EXCAVATOR WBT
Configuration: 390D L Excavator WBT00001-UP (MACHINE) POWERED BY C-18 Engine
Disassembly and Assembly
390D Excavator Machine Systems
Media Number -KENR6408-01 Publication Date -01/02/2012 Date Updated -20/02/2012
i02562620
Travel Motor - Disassemble
SMCS - 4351-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Bracket 2
B 1P-0074 Slide Hammer Puller Gp 1
C 123-4370 Threaded Rod M20 - 2.5 2
D 1P-1864 Pliers 1
E 1P-1858 Pliers 1
F 1P-0520 Driver Group 1
G 8T-0349 Bolt 2
Start By:
a. Remove the travel motor. Refer to Disassembly and Assembly, "Travel Motor - Remove".
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.
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3. 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.
Note: Cleanliness is an important factor. Before you begin the disassembly procedure, the exterior
of the components should be thoroughly cleaned. This will help to prevent dirt from entering the
internal mechanism. Precision components can be damaged by contaminants or by dirt. Perform
disassembly procedures on a clean work surface. Keep components covered and protected at all
times.
1. Place an alignment mark across all housings of the travel motor for assembly purposes.
Illustration 1 g01282832
Personal injury can result from parts and/or covers under spring
pressure.
Spring force will be released when covers are removed.
Be prepared to hold spring loaded covers as the bolts are loosened.
2. Remove two socket head bolts (2) from head (1) that are 180 degrees from each other.
Replace these two bolts with Tooling (G). Tooling (G) will retain the brake cover when the
remaining socket head bolts (2) are removed.
3. Carefully remove the remaining socket head bolts (2) that retain head (1) in position.
Remove socket head bolts (2) evenly, in a crisscross pattern.
4. Remove Tooling (G) from head (1).
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4. Illustration 2 g01283040
5. Install Tooling (A) and a suitable lifting device to head (1).
6. Remove head (1) from the travel motor. The weight of head (1) is approximately 68 kg
(150 lb).
Illustration 3 g01283045
7. Remove relief valve (3).
Illustration 4 g01283049
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5. 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.
8. Remove cap (4) from body (9). Remove piston (5), spring (6), spool (7), and spring (8) from
body (9).
9. Remove O-ring seals (10), (12), and (14). Remove backup rings (11) and (13).
10. Remove the other relief valve from the other side of the head.
11. Repeat Steps 8 and 9 for the disassembly of the other relief valve.
Illustration 5 g01283057
12. Remove plug (15).
Illustration 6 g01283060
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6. 13. Remove spool (16).
Illustration 7 g01283070
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.
14. Remove plug (17).
Illustration 8 g01283075
15. Remove spool (21) from the head. Remove O-ring seal (22) from plug (17).
16. Remove plug (18) from the other side of the head. Remove spring (20). Remove O-ring seal
(19) from plug (18).
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7. Illustration 9 g01283083
17. Remove cap (23) and pressure reducing valve (24).
Illustration 10 g01283088
18. Remove O-ring seals (25), (26), and (27) from pressure reducing valve (24).
Illustration 11 g01283096
19. Use Tooling (B) in order to remove bearing (28) from the head.
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8. Illustration 12 g01283101
20. Remove port plate (29) from the travel motor.
Note: Note the location of springs (30) before removal.
21. Remove springs (30) from the travel motor.
22. Remove O-ring seals (31).
Illustration 13 g01283110
23. Place alignment marks on piston (32) and the housing. The dowel hole in piston (32) must
be reinstalled to the original location.
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9. Illustration 14 g01283120
24. Install Tooling (C) to the threaded holes in piston (32). Install Tooling (A) and a suitable
lifting device on Tooling (C), as shown. Remove piston (32) from the travel motor.
Illustration 15 g01283129
25. Remove O-ring seals (33) and (34) from the travel motor.
Illustration 16 g01283133
26. Remove separator plates (35) and friction plates (36) from the travel motor.
Illustration 17 g01283138
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10. Illustration 18 g01283139
Note: Barrel assembly (37), piston assemblies (39), and retainer (40) must remain intact
during removal.
27. Position the travel motor sideways. Carefully remove barrel assembly (37) from shaft (38).
Illustration 19 g01283155
28. Place identification marks on piston assemblies (39), retainer (40), and barrel assembly (37).
These components must be reinstalled in the original location.
29. Remove retainer (40) and piston assemblies (39) from barrel assembly (37).
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11. Illustration 20 g01283175
Illustration 21 g01283193
30. Remove guide (41).
31. Remove springs (42).
Illustration 22 g01283187
32. Turn swashplate (43) counterclockwise in order to provide clearance for the removal of
swashplate (43).
33. Remove swashplate (43) from the travel motor housing.
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12. Illustration 23 g01283195
34. Remove piston (44) and pivots (45).
Illustration 24 g01283206
35. Use Tooling (D) in order to remove retaining ring (46) from shaft (38).
Illustration 25 g01283209
36. Use a soft hammer in order to drive shaft (38) and bearing (47) from the motor housing.
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13. Illustration 26 g01283212
37. Use Tooling (E) in order to remove retaining ring (48) from bearing (47).
Illustration 27 g01283232
38. Use a suitable press in order to remove bearing (47) from shaft (38).
Illustration 28 g01283244
39. Remove retaining ring (49) and bearing race (50).
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14. Illustration 29 g01283253
40. Use Tooling (F) in order to remove lip seal (51) from the travel motor housing.
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Fri Dec 11 19:03:42 UTC+0800 2020
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15. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 390D L EXCAVATOR WBT
Configuration: 390D L Excavator WBT00001-UP (MACHINE) POWERED BY C-18 Engine
Disassembly and Assembly
390D Excavator Machine Systems
Media Number -KENR6408-01 Publication Date -01/02/2012 Date Updated -20/02/2012
i02563228
Travel Motor - Assemble
SMCS - 4351-016
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Bracket 2
D 1P-1864 Pliers 1
E 1P-1858 Pliers 1
F 1P-0520 Driver Group 1
Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned
in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts.
Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are
worn or damaged, use new parts for replacement.
Note: Apply a light film of 10W oil to all components before assembly.
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16. Illustration 1 g01283253
1. Use Tooling (F) in order to install lip seal (51) in the travel motor housing.
Illustration 2 g01283244
2. Install bearing (50) and retaining ring (49).
Illustration 3 g01283329
3. Raise the temperature of bearing (47). Install bearing (47) onto shaft (38).
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17. Illustration 4 g01283212
4. Use Tooling (E) in order to install retaining ring (48) onto bearing (47).
Illustration 5 g01283209
5. Install shaft (38) and bearing (47) into the motor housing.
Illustration 6 g01283206
6. Use Tooling (D) in order to install retaining ring (46) onto shaft (38).
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19. Illustration 10 g01283175
Improper assembly of parts that are spring loaded can cause bodily
injury.
To prevent possible injury, follow the established assembly procedure
and wear protective equipment.
9. Install springs (42).
10. Install guide (41).
Illustration 11 g01283155
11. Install retainer (40) and piston assemblies (39) into barrel assembly (37). These components
must be reinstalled in the original location.
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20. Illustration 12 g01283139
Note: Barrel assembly (37), piston assemblies (39), and retainer (40) must remain intact
during installation onto shaft (38).
12. Position the travel motor sideways.
Illustration 13 g01283138
13. Carefully install barrel assembly (37) onto shaft (38).
Illustration 14 g01283133
14. Install separator plates (35) and friction plates (36) into the travel motor.
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21. Illustration 15 g01283129
15. Install O-ring seals (33) and (34) into the travel motor.
Illustration 16 g01283110
Note: Piston (32) must be reinstalled in the original location.
16. Install piston (32).
Illustration 17 g01283350
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22. Improper assembly of parts that are spring loaded can cause bodily
injury.
To prevent possible injury, follow the established assembly procedure
and wear protective equipment.
Note: Note the location of springs (30) for installation.
17. Install springs (30) and O-ring seals (31) to the travel motor.
Illustration 18 g01283096
18. Lower the temperature of bearing (28). Install bearing (28) in the head.
Illustration 19 g01283088
19. Install O-ring seals (25), (26), and (27) on pressure reducing valve (24).
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23. Illustration 20 g01283083
20. Install pressure reducing valve (24). Tighten pressure reducing valve (24) to a torque of
44 ± 4 N·m (33 ± 3 lb ft).
21. Install cap (23).
Illustration 21 g01283075
22. Install O-ring seal (22) onto plug (17). Install spool (21) and plug (17) to the head.
23. Install O-ring seal (19) onto plug (18). Install spring (20) and plug (18) to the head.
24. Tighten plugs (17) and (18) to a torque of 74 ± 7 N·m (55 ± 5 lb ft).
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24. Illustration 22 g01283060
25. Install spool (16).
Illustration 23 g01283057
26. Install plug (15).
Illustration 24 g01283049
Improper assembly of parts that are spring loaded can cause bodily
injury.
To prevent possible injury, follow the established assembly procedure
and wear protective equipment.
27. Install O-ring seals (10), (12), and (14) and backup rings (11) and (13).
28. Install piston (5), spring (6), spool (7), and spring (8) in body (9). Install cap (4) in body (9).
29. Repeat Steps 27 and 28 for the assembly of the other relief valve.
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25. Illustration 25 g01283045
30. Install relief valves (3). Tighten relief valves (3) to a torque of 177 ± 18 N·m
(131 ± 13 lb ft).
Illustration 26 g01283396
31. Use light grease to install port plate (29) on the head.
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26. Illustration 27 g01283040
32. Install Tooling (A) and a suitable lifting device to head (1).
33. Position head (1) onto the travel motor. The weight of head (1) is approximately 68 kg
(150 lb).
Illustration 28 g01282832
34. Install socket head bolts (2). Tighten socket head bolts (2) to a torque of 235 ± 24 N·m
(173 ± 17 lb ft).
NOTICE
To avoid system damage, make sure that the hydraulic motor is
properly filled with hydraulic oil before start-up.
End By:
a. Install the travel motor. Refer to Disassembly and Assembly, "Travel Motor - Install ".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Fri Dec 11 19:04:35 UTC+0800 2020
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27. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 390D L EXCAVATOR WBT
Configuration: 390D L Excavator WBT00001-UP (MACHINE) POWERED BY C-18 Engine
Disassembly and Assembly
390D Excavator Machine Systems
Media Number -KENR6408-01 Publication Date -01/02/2012 Date Updated -20/02/2012
i02563475
Travel Motor - Install
SMCS - 4351-012
Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
(A) 138-7573 Link Bracket 1
(B) M20 - 2.5 by 458mm (18 inch) Threaded Rod 2
(C) 8S-9906 Ratchet Puller 1
Note: The procedure to install the right hand travel motor and the procedure to install the left hand
travel motor is identical. The procedure that follows is for one of the travel motors.
Illustration 1 g01284399
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28. 1. Install new O-ring seal (6) .
2. Install Tooling (B) into two of the mounting bolt holes for travel motor (5), as shown.
Illustration 2 g01284397
3. Position a suitable lifting device on travel motor (5), as shown. Install Tooling (C). The
weight of travel motor (5) is approximately 205 kg (452 lb).
4. Carefully position travel motor (5) onto Tooling (B), as shown. Carefully push travel motor
(5) onto Tooling (B) in order to remove the suitable lifting device.
Illustration 3 g01284396
5. Remove Tooling (C). Reposition the suitable lifting device onto Tooling (A), as shown.
Carefully push travel motor (5) into the final drive. Install bolts (4) that secure travel motor
(5) to the final drive.
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29. 6. Remove Tooling (B). Remove Tooling (A) .
Illustration 4 g00854618
7. Install bolts (3) .
Illustration 5 g00854617
8. Install hose coupling (1). Connect hose assemblies (2) .
9. Fill the final drive with hydraulic oil to the correct level. Refer to Operation and
Maintenance Manual, "Lubricant Viscosities" for the proper oil viscosity and Operation and
Maintenance Manual, "Refill Capacities" for the correct amount. Refer to Operation and
Maintenance Manual, "Final Drive Oil Level - Check" for the correct filling procedure.
End By: Install the counterbalance valve (travel). Refer to Disassembly and Assembly,
"Counterbalance Valve (Travel) - Remove and Install".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Fri Dec 11 19:05:28 UTC+0800 2020
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30. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 390D L EXCAVATOR WBT
Configuration: 390D L Excavator WBT00001-UP (MACHINE) POWERED BY C-18 Engine
Disassembly and Assembly
390D Excavator Machine Systems
Media Number -KENR6408-01 Publication Date -01/02/2012 Date Updated -20/02/2012
i02565268
Final Drive - Remove
SMCS - 4050-011
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A
132-8223 Power Pack 1
132-8119 Hydraulic Torque Wrench Assembly 1
Start By:
A. Remove the final drive sprocket. Refer to Disassembly and Assembly, "Final Drive
Sprocket - Remove and Install".
B. Remove the travel motor. Refer to Disassembly and Assembly, "Travel Motor - Remove".
Note: The final drive sprocket does not need to be removed prior to removal of the final drive.
The sprocket should be removed in order to disassemble the final drive.
Note: The travel motor does not need to be removed prior to removal of the final drive. The travel
motor should be removed in order to disassemble the final drive.
Note: The procedure to remove the right hand final drive and the procedure to remove the left
hand final drive are identical. The procedure that follows is for one of the final drives.
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
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31. before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Caterpillar Dealer Service
Tool Catalog" for tools and supplies suitable to collect and contain
fluids on Caterpillar products.
Dispose of all fluids according to local regulations and mandates.
Illustration 1 g00874660
1. Attach two suitable lifting devices to final drive (1). It may be necessary to adjust the
suitable lifting devices for correct balance of final drive (1) .
Illustration 2 g00874668
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32. Suggest:
If the above button click is invalid.
Please download this document
first, and then click the above link
to download the complete manual.
Thank you so much for reading
33. Illustration 3 g01284474
Note: Mark the location of Mounting Bolt Holes (Z) for the travel motor for installation
purposes.
2. Use Tooling (A) in order to remove bolts (2). Carefully remove final drive (1). The weight
of final drive (1) is approximately 1020 kg (2250 lb).
Note: The weight of final drive (1) must be adjusted if any of the components are being
removed with final drive (1) .
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
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Fri Dec 11 19:06:21 UTC+0800 2020
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