Service Repair Manual
Models
312D Excavator
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Product: EXCAVATOR
Model: 312D EXCAVATOR KCD
Configuration: 312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine
Disassembly and Assembly
C4.2 Engine for Caterpillar Built Machines
Media Number -KENR8105-04
Publication Date -01/06/2013
Date Updated -12/06/2013
i02744399
Flywheel - Install
SMCS - 1156-012
Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A
138-7575
Link Bracket
1
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
Always wear protective gloves when handling parts that have been
heated.
1. Perform the following procedure, if the ring gear was removed from the flywheel:
a. Raise the temperature of the ring gear 149 °C (300 °F).
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b. Use a suitable press in order to install the ring gear onto the flywheel.
Note: Prior to the installation of the flywheel, refer to Specifications, "Flywheel" for
information on checking the flywheel assembly for flatness.
Illustration 1
g01374993
2. Install Tooling (A) and a suitable lifting device onto flywheel (3).
3. Install flywheel (3). The weight of flywheel (3) is approximately 50 kg (110 lb).
Illustration 2
g01374968
4. Install bolts (2) in order to secure flywheel (3) onto the crankshaft. Tighten bolts (2) to a
torque of 83 ± 5 N·m (61 ± 4 lb ft).
5. Remove Tooling (A) from flywheel (3).
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312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
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Illustration 3
g01374966
6. Install muffler brackets (1).
7. Check the flywheel runout. Refer to Testing and Adjusting, "Flywheel Housing - Inspect"
for more information on flywheel runout.
End By:
a. Install the muffler. Refer to Disassembly and Assembly,