Caterpillar cat 336 e l excavator (prefix cmr) service repair manual (cmr00001 and up)

Service Repair Manual
Models
336E and 336E L Excavator

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Product: EXCAVATOR
Model: 336E EXCAVATOR CMR
Configuration: 336E & 336E L Excavators CMR00001-UP (MACHINE) POWERED BY C9.3 Engine
Disassembly and Assembly
336E Excavator and 336E MHPU Mobile Hydraulic Power Unit Machine Systems
Media Number -KENR8157-05 Publication Date -01/06/2014 Date Updated -12/06/2014
i03863290
Travel Motor - Disassemble
SMCS - 4351-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A
1U-7506 Adapter 1
8T-4244 Nut 6
8T-4223 Hard Washer 6
- M12 x 1.75 by 250 mm (10 inch) Threaded Rod 1
B
8T-0651 Bolt 1
C 3E-3882 Eyebolt 1
D 1P-1859 Retaining Ring Pliers 1
E
1P-0510 Driver Gp 1
9S-9152 Bearing Puller Gp 1
F 1P-1861 Retaining Ring Pliers 1
Start By:
a. Remove the travel motor.
1. Fasten the travel motor in Tooling (A) in a vertical position. The weight of the travel motor
is approximately 60 kg (132 lb).
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2. Put an alignment mark across the head and the body of the travel motor for assembly
purposes. The head must be reinstalled in the head's original position on the body of the
travel motor.
Illustration 1 g00887295
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.
Note: During the removal of head (2) from the travel motor, be careful not to damage the
mating surfaces of the components.
3. Remove bolts (1).
4. Remove head (2) from the body of the travel motor.

5. Remove O-ring seal (3), port plate (4), and bearing (5).
6. Remove O-ring seals (6). Remove springs (7).
This is an example of the use of Tooling (B).

7. Place a shop towel over brake piston (8). Retain brake piston (8) with Tooling (B). Apply
approximately 525 kPa (75 psi) of shop air pressure to brake release Port (Y). Make sure
that the shop air pressure is free of water. Brake piston (8) will move up the piston guide,
and out of the piston guide. Remove brake piston (8) from the body of the travel motor.
8. Remove seal (9) and backup ring (10) from the brake piston.
9. Remove seal (11) and backup ring (12) from the brake piston.
10. Remove plates (13) and friction discs (14).

11. Install Tooling (C) into shaft (15). Use a prybar to remove the rotating assembly (16) from
the housing.
12. Remove Tooling (C) from shaft (15).
13. Remove shaft (15) from rotating assembly (16).

14. Use Tooling (D) in order to remove retaining ring (17) from shaft (15).
15. Use a suitable press in order to remove bearing race (18) from shaft (15).
16. Rotate shaft (15). Use a suitable press and tooling (E) in order to remove bearing race (19)
from shaft (15).
17. Remove cam plate (20) from barrel assembly (21).

18. Remove piston assemblies and retainer plate (22) from barrel assembly (21).
Note: Place marks on the pistons and the barrel assembly. The pistons must be returned to
the original position.
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.
19. Remove ball (23) and springs (24).

20. Remove bearing (25).
21. Remove keys (26) and locating pins (not shown) from the body of the travel motor.
22. Rotate the housing. Use Tooling (F) in order to remove retaining ring (27).
23. Remove lip seal (28).
24. Remove bolts (29) and cover (30).

25. Remove seal (31) and backup ring (32).
26. Remove piston actuator (33) and seal (34).
27. Remove O-ring seal (35) from the housing of the travel motor.

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Product: EXCAVATOR
i07175112
Travel Motor - Assemble
SMCS - 4351-016
Assembly Procedure
Table 1
Required Tools
A
1U-7506 Adapter 1
8T-4244 Nut 6
- M12 x 1.75 X 250 mm (10 inch) Threaded Rod 1
C 3E-3882 Eyebolt 1
D 1P-1859 Retaining Ring Pliers 1
E
1P-0510 Driver Gp 1
9S-9152 Bearing Puller Gp 1
F 1P-1861 Retaining Ring Pliers 1
G - Loctite 242 -

1. Install O-ring seal (35) onto the housing of the travel motor.
2. Install seal (34) and piston actuator (33). Lubricate the surfaces of piston actuator (33) with
lubricant that is being sealed.
3. Install backup ring (32) and seal (31).

4. Install cover (30) and bolts (29). Tighten bolts (29) to a torque of 28 ± 7 N·m (21 ± 5 lb ft).
5. Apply Tooling (G) to the mating surface of lip seal (28). Use Tooling (E) to install lip seal
(28). Lubricate the sealing lip of lip seal (28) with lubricant that is being sealed.
6. Use Tooling (F) to install retaining ring (27).
7. Rotate the housing.

8. Install keys (26) and locating pins (not shown) into the body of the travel motor.
9. Install bearing (25).
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.
10. Install springs (24) into the barrel assembly. Install ball (23) onto springs (24). Lubricate
ball (23) with lubricant that is being sealed.
11. Lubricate the piston assemblies with lubricant that is being sealed. Install piston assemblies
and retainer plate (22) into barrel assembly (21).

Note: Take note of the mark on the piston assembly and the barrel assembly. The pistons
must be returned to the same position.
12. Lubricate cam plate (20) with lubricant that is being sealed. Install cam plate (20) onto
barrel assembly (21).
13. Install shaft (15) into a suitable press. Install bearing race (19) onto shaft (15).

14. Rotate shaft (15) in the suitable press. Use Tooling (D) to install retaining ring (17) onto
shaft (15).
15. Install bearing race (18) onto shaft (15).
Note: Bearing race (18) must contact retaining ring (17).
16. Install Tooling (C) into shaft (15). Install shaft (15) into rotating assembly (16).
17. Place the pump housing into Tooling (A).

18. Use Tooling (C) to install rotating assembly (16) into the housing.
19. The notches in cam plate (20) must align with keys (26). The keys are located in the bottom
of the housing of the travel motor.

20. Install plates (13) and friction discs (14) into the housing.
Note: Install the plates and the discs alternately.
21. Install backup ring (12) and seal (11) onto the brake piston.
22. Install backup ring (10) and seal (9) onto the brake piston.
23. Rotate brake piston (8).
24. Install brake piston (8) into the housing so that the cast mark on brake piston (8) is aligned
with the brake supply passage in the housing.
Note: Brake piston (8) must be level upon installation. The brake piston must be level to
prevent damage to the O-ring seals.

25. Install springs (7) and O-ring seals (6).
26. Lubricate port plate (4) with lubricant that is being sealed. Install O-ring seal (3), port plate
(4), and bearing (5).

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 head (2) onto the body of the travel motor.
Note: During the installation of head (2) onto the travel motor, be careful not to damage the
mating surfaces of the components.
28. Install bolts (1). Tighten bolts (1) to a torque of 240 ± 40 N·m (177 ± 30 lb ft).
End By:
a. Install the travel motor.
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
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Product: EXCAVATOR
i07191698
Final Drive and Travel Motor - Remove and Install
SMCS - 4050; 4351
Removal Procedure
Table 1
Required Tools
A 1U-9200 Lever Puller Hoist 1
B 439-3938 Link Bracket 1
Personal injury can result from hydraulic oil pressure and hot oil.
Hydraulic oil pressure can remain in the hydraulic system after the
engine has been stopped. Serious injury can be caused if this pressure is
not released before any service is done on the hydraulic system.
Make sure all of the work tools have been lowered to the ground, and
the oil is cool before removing any components or lines. Remove the oil
filler cap only when the engine is stopped, and the filler cap is cool
enough to touch with your bare hand.
1. Refer to Operation and Maintenance Manual, "Final Drive Oil - Change" for the correct
draining and filling procedures.

2. Remove bolts (1) and cover (2).
3. Separate the track.
4. Disconnect hose assemblies (3) ( 4), and (6). Remove fitting (5).

5. Attach Tooling (A) and a suitable lifting device to final drive and travel motor (7). The
weight of final drive and travel motor (7) is approximately 860 kg (1896 lb). Put a slight
lifting tension on final drive and travel motor (7).
Note: Mark the orientation of the final drive and travel motor assembly for installation
purposes.
6. Remove bolts (8).
7. Use two bolts (8) to remove final drive and travel motor (7).
8. Carefully remove final drive and travel motor (7).
9. Remove bolts (8) from the frame.

10. Remove bolts (9), counterbalance valve (10), and the O-ring seals.
11. Attach Tooling (B) and a suitable lifting device to travel motor (11). The weight of travel
motor (11) is approximately 84 kg (185 lb).
12. Remove four bolts (12) and travel motor (11) from final drive (13).

13. Remove coupling (14).
Installation Procedure
Table 2
Required Tools
A 1U-9200 Lever Puller Hoist 1
B 439-3938 Link Bracket 1
C - Loctite C5A Copper Anti-Seize -
1. Before assembly remove all compounds, oil, and dust.
2. Install final drive and travel motor (7) in the reverse order of removal.
a. Tighten bolts (9) to a torque of 80 ± 8 N·m (60 ± 6 lb ft).
b. Apply Tooling (C) to the threads of bolt (8).
c. Tighten bolts (8) to a torque of 250 ± 25 N·m (184 ± 18 lb ft) and turn an additional
angle of 45 ± 5 degrees. Refer to Service Magazine, M0083843, "An Improved Bolt
Tightening Procedure for the Critical Joints Is Now Used on All Excavators" for more
detail information.
d. Tighten hose assembly (3) to a torque of 160 ± 16 N·m (120 ± 12 lb ft).
e. Tighten bolts (1) to a torque of 130 ± 10 N·m (95 ± 7 lb ft).
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Mon Aug 3 23:18:02 UTC+0800 2020

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Product: EXCAVATOR
i03885522
Final Drive - Disassemble
SMCS - 4050-015
Disassembly Procedure
Table 1
Required Tools
A 138-7575 Link Brackets 3
B 154-6183 Forcing Bolts 3
C 138-7576 Link Brackets 3
Start By:
a. Remove the final drive and the travel motor.

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1. Attach Tooling (A) and a suitable lifting device to cover (2). The weight of cover (2) is
approximately 20 kg (45 lb). Remove bolts (1) and cover (2).
2. Remove plate (3) from cover (2).
3. Remove sun gear (4), spacer (5), and planetary gear assembly (6).

4. Remove retaining ring (7), washer (8), planetary gear (9), roller bearing (11), and washer
(12) from carrier assembly (13).
5. Remove retaining ring (10) and sun gear (14) from carrier assembly (13).
6. Remove spacer (16).
7. Attach Tooling (A) and a suitable lifting device to planetary gear assembly (15). The weight
of planetary gear assembly (15) is approximately 32 kg (70 lb). Remove planetary gear
assembly (15).

Caterpillar cat 336 e l excavator (prefix cmr) service repair manual (cmr00001 and up)

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