TM 9-4520-251-14
5-11 MAIN BEARINGS
This task covers:
a. Inspection
b. Removal
c. Installation
Tools
Equipment Condition Para
Condition Description
Tool kit, service, refrigeration unit
5–10
Crankcase cover removed
(Appendix B, Section Ill, Item 1)
and connecting rod dis–
connected from crankshaft.
Materials/Parts
Dry cleaning solvent (Appendix E, Item 15)
Engine oil (Appendix E, Item 8)
Ball bearing (armature end)
Ball bearing (power takeoff end)
Location/Item
Action
Remarks
INSPECTION
1.
Crankshaft
Turn crankshaft (1) to align timing mark (2) with
timing mark (3) of cam gear (4). Lift out crank–
shaft and cam gear together.
5-22
