Service Repair Manual
Models
312E and 312E L Excavator
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Product: EXCAVATOR
Model: 312E L EXCAVATOR WEY
Configuration: 312E & 312E L Excavators WEY00001-UP (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly
C4.4 Engines for Caterpillar Built Machines
Media Number -UENR0602-11
Publication Date -01/08/2013
Date Updated -25/10/2017
i04048571
Gear Group (Front) - Remove and Install - Heavy Duty Gear
Group (Front)
SMCS - 1206-010
Removal Procedure
Table 1
Required Tools
Tool Part Number
Part Description
Qty
A
9U-7336
Housing
1
5P-7305
Engine Turning Tool
1
B
230-6284
Timing Pin (Camshaft)
1
C
364-9107
Timing Pin
(Fuel Injection Pump)
1
D
136-4632
Timing Pin (Crankshaft)
1
268-1966
Adapter
1
E
298-5564
T40Torx Socket
1
Start By:
a. Remove the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove and
Install" for the correct procedure.
b. Remove the valve mechanism cover. Refer to Disassembly and Assembly, "Valve
Mechanism Cover - Remove and Install" for the correct procedure.
NOTICE
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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 prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Dispose of all fluids according to local regulations and mandates.
Note: Care must be taken in order to ensure that the fuel injection pump timing is not lost during
the removal of the front gear group. Carefully follow the procedure in order to remove the gear
group.
1. If the air compressor is equipped with a hydraulic pump, remove the hydraulic pump. Refer
to Original Equipment Manufa