TM 9-2320-260-34-1
3-48. CRANKSHAFT AND MAIN BEARING REMOVAL
THIS TASK COVERS:
Removal
INITIAL SETUP
REFERENCES (TM)
APPLICABLE MODELS
TM 9-2320-260-34P-1
All
EQUIPMENT CONDITION
SPECIAL TOOLS
Universal puller kit (Appendix B, Item 75)
TOOLS
General mechanic's tool kit
(Appendix B, Item 1)
Main bearing cap puller (Appendix B, Item 92)
Lifting straps (Appendix B, Item 155)
Lifting device
Bend down fourteen locktabs (2) and remove fourteen screws (1) and locktabs (2) from seven main
1.
bearing caps (10). Discard locktabs (2).
NOTE
Main bearing caps are not interchangeable. Ensure all caps
are marked for replacement in their original positions.
Tape mating main bearing shells and thrust ring halves together
and label each pair by cylinder number for later reference.
2.
Using main bearing cap puller, pull seven main bearing caps (10) from cylinder block (8) and
crankshaft (5).
3. Remove seven bearing shells (3) and two thrust ring halves (4) from crankshaft (5).
4. Using lifting device and lifting straps, remove crankshaft (5) from cylinder block (8).
5.
Remove seven bearing shells (7) and two thrust ring halves (6) from cylinder block (8).
6. Remove seven ring dowels (9) from cylinder block (8).
NOTE
Perform step 7 and 8 only if crankshaft gear is damaged or exces-
sively worn.
7. Using puller, remove gear (11) from crankshaft (5).
8. Remove woodruff key (12) from crankshaft (5). Discard woodruff key (12).