Service Repair Manual
Models
312D2 GC Excavator
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Product: EXCAVATOR
Model: 312D2 GC EXCAVATOR BRW
Configuration: 312D2 GC Excavator BRW00001-UP (MACHINE) POWERED BY 3054C Engine
Disassembly and Assembly
3054C Engines for Caterpillar Built Machines
Media Number -SENR5069-18
Publication Date -01/05/2015
Date Updated -19/09/2018
i02293555
Flywheel - Remove
SMCS - 1156-011
Removal Procedure
Table 1
Required Tools
Tool Part Number
Part Description
Qty
A
-
Guide Bolt (1/2 inch - 20 NF by 4 inch)
2
B
138-7575
Link Bracket
1
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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Illustration 1
g01148312
Typical example
1. Remove the two setscrews and install the Tooling (A) as guides.
Note: The weight of the flywheel (2) is approximately 54 kg (119 lb). Install the Tooling
(B) in order to support the flywheel (2) before the remainder of the setscrews (1) are
removed.
2. Remove the remaining setscrews (1) that secure flywheel (2) to the crankshaft.
3. Remove the flywheel (2) from the engine.
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Illustration 2
g01148313
4. Check the condition of the ring gear (4). Remove the ring gear (4) if the ring gear is worn or
damaged.
Note: Identify the orientation of the ring gear (4) on the flywheel (2) and the position of the
chamfer on the teeth for the correct positioning when the new ring gear is installed.
5. Place the flywheel (2) and the ring gear (4) on a suitable support. Use a hammer and a chisel
in order to remove the ring gear (4) from the flywheel (2).
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