Service Repair Manual
938H Wheel Loader
Product: WHEEL LOADER
Model: 938H WHEEL LOADER LKM
Configuration: 938H Wheel Loader LKM00001-UP (MACHINE) POWERED BY C6.6 Engine
Disassembly and Assembly
C6.6 Engines for Caterpillar Built Machines
Media Number -KENR6081-15
Publication Date -01/03/2014
Date Updated -04/03/2014
Valve Mechanism Cover Base - Remove and Install -
Composite Valve Mechanism Cover Base
SMCS - 1120-010
Tool Part Number
Retaining Ring Pliers
a. Remove the valve mechanism cover. Refer to Disassembly and Assembly, "Valve
Mechanism Cover - Remove and Install" for the correct procedure.
b. Remove the fuel injection lines. Refer to Disassembly and Assembly, "Fuel Injection Lines
- Remove" for the correct procedure.
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
938H Wheel Loader LKM00001-UP (MACHINE) POWERED BY C6.6 Engine(SEB...
Use a deep socket in order to remove the electrical connections from
the electronic unit injectors. Use of incorrect tooling will result in
damage to the electronic unit injectors.
1. Make a temporary identification mark on connections (1).
2. Use a deep socket to remove connections (1) from electronic unit injectors (2).
3. Disconnect plugs (7) from harness assemblies (4).
4. If necessary, follow Step 4.a through Step 4.e in order to remove harness assemblies (4)
from valve mechanism cover base (6).
a. Cut cable strap (3).
b. Use Tooling (A) to remove circlip (5).
c. From the outside of valve mechanism cover base (6), push harness assembly (4)
inward. Withdraw the harness assembly from valve mechanism cover base (6).
d. Remove O-ring seal (8) from harness assembly (4).
938H Wheel Loader LKM00001-UP (MACHINE) POWE