Crankshaft, Main Bearings, and Flywheel
02
040
41
RG,RG34710,180 –19–13AUG99–3/4
RG8425 –UN–09DEC97
Installing JDG973-1 Hub
RG8426 –UN–09DEC97
Installing Vibration Damper
A—JDG973-1 Damper Remover/Installer Hub
B—Vibration Damper And Seal
C—JDG973-2 Cross Block
Install Vibration Damper on Engine
1. Install JDG973-1 Damper Remover/Installer Hub (A)
onto front face of crankshaft using two cap screws
provided with kit. Tighten cap screws securely.
2. Lubricate forcing screw threads with all purpose
grease.
3. Position vibration damper and seal (B) on forcing
screw hub as shown.
4. Install JDG973-2 Cross Block (C) onto forcing screw.
Secure cross block with two cap screws finger tight.
NOTE: Lubricate forcing screw and both sides of friction
washer with multi-purpose grease prior to each
use.
5. Install friction washer and nut against cross block.
NOTE: Cut-outs in seal casing should be at 3 o’clock and
9 o’clock position for timing gear cover cap screw
clearance. Align holes in casing with cap screw
holes as damper and seal are installed.
6. Tighten nut until damper bottoms on crankshaft flange.
Remove JDG973 tool set from engine.
Continued on next page
CTM100 (06APR04)
02-040-41
P
OWER
T
ECH
10.5 L & 12.5 L Diesel Engines
040604
PN=237
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General