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 TM 55-1905-221-14-3
6-28.1. CRANKSHAFT BEARINGS - MAINTENANCE INSTRUCTIONS (Continued).
g. Bearing failures may result from deterioration (acid formation) or contamination of the oil or loss of oil. An
analysis of the lubricating oil may be required to determine if corrosive acid and sulfur are present which causes acid
etching, flaking and pitting. Bearing seizure may be due to low oil or no oil.
h. Check the oil filter elements and replace them if necessary. Also check the oil by-pass valve to make sure it is
operating freely.
This task consists of:
a. Removal
b. Inspection
c.
Installation
INITIAL SETUP
Test Equipment
References
Cylinder Diameter Gage
NONE
J5347-01
Micrometer ball
attachment J4757
Equipment
Special Tools
Condition
Condition Description
Paragraph
Torque wrench
Hammer, soft
Power Unit Removal
Oil Pan Removal
Tools
Lube Oil Pump Removed
Oil Inlet Pipe Removed
General Mechanic's Tool Kit
NSN 5180-00-629-9783
Material/Parts
Special Environmental Conditions
Bearing Set P/N 5192874
Do not drain oil into bilges. Use
Engine oil
oil separation and recovery
Thread compound
system to collect drained oil.
International #2
Personnel Required
General Safety Instructions
2
NONE
6-485
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