Service Repair Manual
Model
420F BACKHOE LOADER
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Product: BACKHOE LOADER
Model: 420F BACKHOE LOADER LTG
Configuration: 420F Backhoe Loader LTG00001-02342 (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly
C4.4 (Mech) Engines for Caterpillar Built Machines
Media Number -KENR9210-10
Publication Date -01/12/2014
Date Updated -08/08/2018
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Gear Group (Front) - Remove and Install
SMCS - 1206-010
Removal Procedure
Table 1
Required Tools
Tool Part Number
Part Description
Qty
A(1)
9U-6198
Crankshaft Turning Tool
1
A(2)
9U-7336
Housing
1
5P-7305
Engine Turning Tool
1
B
230-6284
Timing Pin (Camshaft)
1
C
230-6283
Timing Pin (Crankshaft)
1
(1) The Crankshaft Turning Tool is used on the front pulley.
(2) This Tool is used in the aperture for the electric starting motor.
Start By:
a. If the engine is equipped with an air compressor, remove the air compressor. Refer to
Disassembly and Assembly, "Air Compressor - Remove and Install".
b. If the engine is equipped with a vacuum pump, remove the vacuum pump. Refer to
Disassembly and Assembly, "Vacuum Pump - Remove and Install".
c. If the engine is equipped with an accessory drive, remove the accessory drive. Refer to
Disassembly and Assembly, "Accessory Drive - Remove and Install".
d. Remove the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove and
Install".
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e. Remove the valve mechanism cover. Refer to Disassembly and Assembly, "Valve
Mechanism Cover - Remove and Install".
Note: Either Tooling (A) can be used. Use the Tooling that is most suitable.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting and repair
of the product. Be p