TM-9-2815-220-24
AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL FOR AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines
TM-9-2815-220-24 - Page 1161 of 1563
TM 9-2815-220-24
CRANKSHAFT MAIN BEARINGS INSPECTION
0138 00
INSPECTION (Continued)
12. Remove main bearing caps (6, 7) (Continued).
c. Install jackscrew (crankcase spreading tool) (8) (item 110, WP 0176) midway between two
main bearing caps (6, 7) and tighten just enough to release pressure of crankcase from ends
of main bearing caps.
d. Install mechanical puller adapter (18) (item 2, WP 0176) onto slide hammer (19)
(item 88, WP 0176).
e. Install adapter (18) into threaded hole (A) provided in main bearing caps (6, 7).
CAUTION
Use caution when removing main bearing caps so that bearing half
does not accidentally drop out.
Bearing halves can be easily damaged.
f.
Gently tap main bearing caps (6, 7) free of crankcase using the slide hammer (19).
g. Repeat for remaining caps.
h. Remove jackscrew (8).
8
A
19
18
6,7
A
WP 0138 00-11
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