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 TM 55-1905-219-14-5
3-91.4. CRANKSHAFT TIMING GEAR - MAINTENANCE INSTRUCTIONS.
LOCATION
ITEM
ACTION
REMARKS
INSPECTION
Wear eye protection when using compressed air.
2.
Clean the gear with fuel
oil and dry it with com-
pressed air. Examine the
gear teeth for evidence
of scoring, pitting or
wear. If severely damaged
or worn, install a new
gear. Also check the
other gears in the gear
train.
INSTALLATION
3.
a. Dowel
Install.
(6)
b. Gear
1. Position the gear on the
(5)
rear end of the crankshaft
with the flat finish hub
of the gear facing toward
the cylinder block and
with all six bolt holes in
the gear aligned with the
tapped holes in the crank-
shaft. One bolt hole is
offset so the gear can be
attached in only one posi-
tion.
2. Align the proper timing
mark ("L" or "R") on
the crankshaft gear
tooth with the corres-
ponding mark on the
idler gear.
NOTE
When advanced timing is required, align the timing mark "A"' with the timing mark
on the idler gear.
3-1588
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