Caterpillar Cat 336D2 Excavator (Prefix WDC) Service Repair Manual (WDC00001 and up).pdf

Service Repair Manual
Models
336D2 and 336D2 L Excavator

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Product: EXCAVATOR
Model: 336D2 EXCAVATOR WDC
Configuration: 336D2 & 336D2 L Excavators WDC00001-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
i02415273
Piston Motor (Hydraulic Fan) - Assemble
SMCS - 1386-016-QP; 5058-016-FM; 5058-016-HFN
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
B 1P-1861 Retaining Ring Pliers 1
C 1P-0510 Driver Gp 1
Illustration 1 g01207288
1. Install bearing cup (29).
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336D2 & 336D2 L Excavators WDC00001-UP (MACHINE) POWERED BY C9 Engi...
2020/8/10
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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).
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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.
7. Install shim (21), spring (22), and shim (23).
8. Use Tooling (C) and Tooling (B) in order to install retaining ring (19).
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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).
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13. Install bearing cone (12).
injury.
14. Install O-ring seal (11), poppet (10), spring (9), poppet (8), sleeve (7), and plug (6).
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15. Lower the temperature of bearing cup (5).
16. Install bearing cup (5), port plate (4), and O-ring seal (3).
injury.
17. Install head (2) and bolts (1).
End By:
a. Install the piston motor. Refer to Disassembly and Assembly, "Piston Motor (Hydraulic
Fan) - Install".
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Product: EXCAVATOR
i02415453
Piston Motor (Hydraulic Fan) - Install
SMCS - 1386-012-QP; 5058-012-FM
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. Use a suitable lifting device to install piston motor (5). The weight of piston motor (5) is
approximately 23 kg (50 lb).
2. Install bolts (6).
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3. Use a suitable lifting device to reposition fan motor assembly (4), as shown. The weight of
fan motor assembly (4) is approximately 68 kg (150 lb).
4. Install hub (3) and bolts (2).
5. Bend locking tabs (1) over bolts (2).
End By:
a. Install the fan. Refer to Disassembly and Assembly, "Fan - Install".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Mon Aug 10 23:59:03 UTC+0800 2020
2/2
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Product: EXCAVATOR
i02554917
Hydraulic Lockout Control - Remove
SMCS - 5001-011-LK
Removal Procedure
1. Remove screws (2) and panel (1).
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2. Remove screws (6). Cut cable strap (8) and place switch (7) aside.
3. Remove bolt (4), bolt (5), and hydraulic lockout control (3).
Mon Aug 10 23:59:59 UTC+0800 2020
2/2
2020/8/11

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Product: EXCAVATOR
i02378526
Hydraulic Lockout Control - Disassemble
SMCS - 5001-015-LK
Disassembly Procedure
Start By:
a. Remove the hydraulic lockout control. Refer to Disassembly and Assembly, "Hydraulic
Lockout Control - Remove".
Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
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Follow the recommended procedure and use all recommended tooling to
release the spring force.
1. Remove retaining rings (1) and lever assembly (2).
2. Remove retaining ring (4), lever assembly (5), and spring (3).
3. Pull back cover (8) in order to remove pin (7) from pipe assembly (6).
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4. Remove pin (10) from pin (9).
5. Remove spring (11) from cover (12).
Tue Aug 11 00:00:55 UTC+0800 2020
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Product: EXCAVATOR
i02378527
Hydraulic Lockout Control - Assemble
SMCS - 5001-016-LK
Assembly Procedure
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1. Install spring (11) to cover (12).
2. Install pin (10) to pin (9).
3. Install pin (7) to pipe assembly (6).
4. Slide cover (8) over pipe assembly (6).
5. Install spring (3), lever assembly (5), and retaining ring (4).
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6. Install lever assembly (2) and retaining rings (1).
End By:
a. Install the hydraulic lockout control. Refer to Disassembly and Assembly, "Hydraulic
Lockout Control - Install".
Tue Aug 11 00:01:51 UTC+0800 2020
3/3
2020/8/11

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Product: EXCAVATOR
i07426591
Hydraulic Lockout Control - Install
SMCS - 5001-012-LK
Installation Procedure
Table 1
Required Tools
A - Loctite 243 -
1. Install hydraulic lockout control (3), bolt (4), and bolt (5).
2. Apply Tooling (A) to the threads of screws (6). Position switch assembly (7) and install
screws (6). Tighten screws (6) to a torque of 0.7 ± 0.1 N·m (6.2 ± 0.9 lb in). Attach cable
strap (8).
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3. Install panel (1) and screws (2).
Tue Aug 11 00:02:47 UTC+0800 2020
2/2
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Product: EXCAVATOR
i02417256
Operator Console - Remove and Install
SMCS - 5258-010
Removal Procedure
Table 1
Required Tools
A FT-2674 Vacuum Cap 1
Start By:
a. Remove the seat. Refer to Disassembly and Assembly, "Seat - Remove".
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for
installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this
helps to keep contaminants from entering the system.
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1. Remove plates (1) and (2).
2. Attach Tooling (A) and an air supply to the hydraulic oil tank. Apply 345 ± 70 kPa
(50 ± 10 psi) to Tooling (A).
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3. Disconnect hose assemblies (3).
4. Disconnect hose assemblies (4).
5. Disconnect harness assemblies (5).
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6. Disconnect harness assemblies (6).
7. Remove plate (8). Move floor mat (7) toward the front of the cab.
8. Remove bolts (9) from each side of the operator console. Pull hose assemblies (3) and (4)
through the floor of the cab. Hose assemblies (3) and (4) were removed in Steps 3 and 4.
Pull harness assemblies (5) and (6) through the floor of the cab. Harness assemblies (5) and
(6) were removed in Steps 5 and 6.
Note: If the machine is equipped with a radio, the antenna will need to be disconnected.
4/9
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9. Disconnect harness assembly (10).
10. Remove bolts (11) and operator console (12).
Installation Procedure
Table 2
Required Tools
A FT-2674 Vacuum Cap 1
1. Install operator console (12) and bolts (11).
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2. Connect harness assembly (10).
3. Insert hose assemblies (3) and (4) through the hole in the cab floor. Insert harness
assemblies (5) and (6) through the holes in the cab floor. Hose assemblies (3) and (4) and
harness assemblies (5) and (6) will be connected in the following steps. Install bolts (9)
from each side of the operator console.
Note: If the machine is equipped with a radio, the antenna will need to be connected.
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4. Move floor mat (7) toward the rear of the cab. Install plate (8).
5. Connect harness assemblies (6).
6. Connect harness assemblies (5).
7. Connect hose assemblies (4).
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Caterpillar Cat 336D2 Excavator (Prefix WDC) Service Repair Manual (WDC00001 and up).pdf

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