Service Repair Manual
Models
312B and 312B L Excavator
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Product: EXCAVATOR
Model: 312B L EXCAVATOR 2KW
Configuration: 312B & 312B L Excavators 2KW00001-UP (MACHINE) POWERED BY 3054 Engine
Disassembly and Assembly
3054 Engine for Caterpillar Built Machines
Media Number -SENR6241-13
Publication Date -01/08/2008
Date Updated -04/08/2008
i02253357
Gear Group (Front) - Remove
SMCS - 1206-011
Removal Procedure
Table 1
Required Tools
Tool
Part Number
Part Description
Qty
A
8S-2264
Puller Group
1
B
173-9774
Wrench Bit
1
Start By:
A. Remove the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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Illustration 1
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Note: It may be necessary to pin the fuel pump in order to maintain the correct timing.
Refer to Disassembly and Assembly, "Fuel Injection Pump - Remove"for the correct
procedure.
1. Align the timing marks on the crankshaft gear, the camshaft gear, and the idler gear, as
shown.
2. Remove bolts (1) from idler gear (2) .
3. Remove idler gear (2) and retainer plate (3) .
Illustration 2
g00556757
4. Remove bushing (4) from idler gear (2) , if necessary.
5. Remove the bushing with a suitable puller. If the bushing cannot be removed with a puller,
grind the face off of one bushing. The remainder of the bushing can then be removed with a
press.
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312B & 312B L Excavators 2KW00001-UP (MACHINE) POWERED BY 3054 Engin...
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Illustration 3
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6. Remove idler gear hub (5) from the cylinder block.
7. Remove nut (6) and the spring washer from fuel injection pump gear (8) .
8. Remove bolts (7) from fuel injection pump gear (8) .
Note: Some fuel injection pump gears may have a