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 1162 of 1563

TM 9-2815-220-24

CRANKSHAFT MAIN BEARINGS INSPECTION

0138 00

INSPECTION (Continued)

13. Inspect main bearing (1, 2, 3, 4) contact surfaces.

a. Remove bearing halves (1, 2, 3, 4) from cap (6) and crankcase (5).

b. Inspect bearing half backs as indicated by Prussian blue transfer.

c. Replace bearings halves that do not make 75 percent contact with bearing bores.

Repeat

steps 1-12 with new bearings.

7

4

3

6

2

1

5

END OF WORK PACKAGE

WP 0138 00-12