Caterpillar Cat 336D L Excavator (Prefix MDS) Service Repair Manual (MDS00001 and up).pdf

Service Repair Manual
Models
336D L Excavator

Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 336D L EXCAVATOR MDS
Configuration: 336D L Excavator MDS00001-UP (MACHINE) POWERED BY C9 Engine
Disassembly and Assembly
330D, 336D, 336D2, 340D and 340D2 Excavators and 336D MHPU Mobile Hydraulic
Power Unit Machine Systems
Media Number -RENR8648-30 Publication Date -01/03/2015 Date Updated -15/08/2018
i02732015
Piston Pump (Hydraulic Fan) - Assemble
SMCS - 1387-016-QP; 5070-016-HFN
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
B 1P-1857 Retaining Ring Pliers 1
D 8T-5096 Dial Indicator Gp 1
Illustration 1 g01212915
1. Lower the temperature of bearing cup (49). Install bearing cup (49).
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2. Install lip seal (48).
3. Use Tooling (B) in order to install retaining ring (47).
4. Raise the temperature of bearing cone (46).
5. Install bearing cone (46) onto shaft (45).
6. Install bearing cone (46), shaft (45), and bearing cone (31).
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7. Lower the temperature of bearing cone (26). Install bearing cone (26).
8. Position head (23) onto the housing.
9. Install bolts (22).
10. Use Tooling (D) in order to determine the end play of shaft (45).
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11. Remove bolts (22) and head (23).
12. Remove bearing cone (31).
13. Install bearings (44).
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14. Install swashplate (43).
15. Install shim (40), spring (41), and shim (42) to barrel (38).
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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.
16. Use Tooling (A), Tooling (B), and a suitable press in order to install retaining ring (39) into
barrel (38).
17. Install pins (37) into barrel (38).
18. Install bearing (36), retainer (35), and pistons (34).
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19. Install rotating group (32) and shim (33).
Note: Shim thickness was determined on Step 9.
20. Install bearing cone (31).
21. Install piston (30).
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22. Install spring (27), piston (29), and O-ring seal (28).
23. Install O-ring seals (24) and port plate (25).
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injury.
24. Install head (23) and bolts (22).
injury.
25. Install spool (15), poppet (16), spring (17), spring (18), shim (19), O-ring seal (20), and
housing (21) into housing (2).
26. Install retainer (7), spring (8), retainer (9), spool (10), O-ring seal (12), backup ring (11), O-
ring seal (13), and cartridge (14).
27. Install screw (6) into housing (2).
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28. Install coil (4) and nut (5).
29. Install O-ring seals (3).
30. Install controller (2) and bolts (1).
End By:
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336D L Excavator MDS00001-UP (MACHINE) POWERED BY C9 Engine(SEBP...
2020/5/16

a. Install the piston pump. Refer to Disassembly and Assembly, "Piston Pump (Hydraulic Fan)
- Install".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
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Sat May 16 01:08:20 UTC+0800 2020
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2020/5/16

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Product: EXCAVATOR
i02424411
Piston Pump (Hydraulic Fan) - Install
SMCS - 1387-012-QP; 5070-012-HFN
Installation Procedure
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.
1. Position piston pump (7) and install bolts (6).
2. Connect harness assembly (5).
3. Connect hose assemblies (3) and (4).
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4. Connect hose assembly (2).
5. Close door (1).
6. Fill the hydraulic system with oil. Refer to Operation and Maintenance Manual, "Refill
Capacities".
Sat May 16 01:09:15 UTC+0800 2020
2/2
2020/5/16

Shutdown SIS
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Product: EXCAVATOR
i02415451
Piston Motor (Hydraulic Fan) - Remove
SMCS - 1386-011-QP; 5058-011-FM
Removal Procedure
Start By:
a. Remove the fan. Refer to Disassembly and Assembly, "Fan - Remove".
Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the
component should be thoroughly cleaned. This will help to prevent dirt from entering the internal
mechanism.
1. Bend locking tabs (1) backward.
2. Remove bolts (2) and hub (3).
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3. Use a suitable lifting device to position fan motor assembly (4) onto suitable cribbing. The
weight of fan motor assembly (4) is approximately 68 kg (150 lb).
4. Attach a suitable lifting device to piston motor (5). The weight of piston motor (5) is
approximately 23 kg (50 lb).
5. Remove bolts (6) and fan motor (5).
Sat May 16 01:10:11 UTC+0800 2020
2/2
2020/5/16

Shutdown SIS
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Product: EXCAVATOR
i02415272
Piston Motor (Hydraulic Fan) - Disassemble
SMCS - 1386-015-QP; 5058-015-FM; 5058-015-HFN
Disassembly Procedure
Table 1
Required Tools
A 9S-9152 Bearing Puller Gp 1
C 1P-0510 Driver Gp 1
Start By:
a. Remove the piston motor. Refer to Disassembly and Assembly, "Piston Motor (Hydraulic
Fan) - Remove".
1/7
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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. Remove bolts (1) and head (2).
2. Remove O-ring seal (3), port plate (4), and bearing cup (5).
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3. Remove plug (6), sleeve (7), poppet (8), spring (9), poppet (10), and O-ring seal (11).
4. Remove bearing cone (12).
5. Remove shim (13) and rotating group (14).
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6. Remove pistons (15) and retainer (16).
7. Remove bearing (17).
8. Remove pins (18).
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9. Use Tooling (C) and Tooling (B) in order to remove retaining ring (19).
10. Remove shim (23), spring (22), and shim (21).
11. Remove swashplate (24) and shaft (25).
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12. Use Tooling (A) in order to remove bearing cone (26) from shaft (25).
13. Use Tooling (C) in order to remove retaining ring (27).
14. Remove lip seal (28).
15. Remove bearing cup (29).
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
i02415273
Piston Motor (Hydraulic Fan) - Assemble
SMCS - 1386-016-QP; 5058-016-FM; 5058-016-HFN
Assembly Procedure
Table 1
Required Tools
C 1P-0510 Driver Gp 1
1. Install bearing cup (29).
1/7
2020/5/16

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2. Install lip seal (28).
3. Use Tooling (C) in order to install retaining ring (27).
4. Raise the temperature of bearing cone (26).
5. Install bearing cone (26) onto shaft (25).
6. Install shaft (25) and swashplate (24).
2/7
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injury.
7. Install shim (21), spring (22), and shim (23).
8. Use Tooling (C) and Tooling (B) in order to install retaining ring (19).
3/7
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9. Install pins (18).
10. Install bearing (17).
11. Install pistons (15) and retainer (16).
12. Install rotating group (14) and shim (13).
4/7
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Caterpillar Cat 336D L Excavator (Prefix MDS) Service Repair Manual (MDS00001 and up).pdf

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