TM-5-4310-389-14
5-3. UPPER CRANKCASE AND DRIVE GEAR (COMPRESSOR).
DESCRIPTION
This task covers: Replace. Repair.
INITIAL SETUP
Tools:
Equipment conditions:
Feeler gauge (metric)
Equipment secured
Mallet
(paragraph 2-11)
All cylinders and pistons
Materials/parts:
removed (paragraph 4-6).
Alcohol, Isopropyl, item 1
Fan and flywheel removed
Appendix E
(paragraph 4-9).
Apron, Rubber, item 5 Appendix E
Remove rear covers, gears,
Bag, Plastic, item 6 Appendix E
and belt for oil pump
Cloth, Lint-free, item 9 Appendix E
(paragraph 5-4).
Detergent, Non-ionic, item 13 Appendix E
Gloves, Rubber, item 17 Appendix E
Grease, Halo Carbon, item 19 Appendix E
Shield, Face, item 27 Appendix E
Silicone, RTV Sealant, item 28 Appendix E
Trisodium Phosphate, item 31 Appendix E
Water, Distilled, item 32 Appendix E
a.
Crankshaft.
1.
Remove the crankshaft, together with the bearing cap, from the crankcase using a mallet.
2.
Remove the circlip and press the crankshaft out of the bearing cap.
NOTE
The following checks are to be made every 2000 working hours.
INSPECT
a.
Upper connecting rod bearings (small end). The needles of the needle bearing should revolve smoothly after
cleaning and show no damage. The same applies to the piston pin.
5-6
