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 1166 of 1563

TM 9-2815-220-24

CRANKSHAFT REPLACE/REPAIR

0139 00

REMOVAL (Continued)

3. Remove main bearing caps (6) (Continued).

c. Install jackscrew (crankcase spreading tool) (10) (item 110, WP 0176) midway between

two main bearing caps (6), and tighten just enough to release pressure of crankcase from

ends of main bearing caps.

d. Install mechanical adapter (11) (item 2, WP 0176) onto slide hammer (12) (item 88,

WP 0176).

e. Install mechanical adapter (11) into threaded hole (A) provided in main bearing cap (6).

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 the main bearing cap (6) free of the crankcase using the slide hammer (12).

g. Repeat procedure for remaining main bearing caps (6).

g. Remove crankcase spreading tool (10).

10

A

12

11

6

A

WP 0139 00-4