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 1200 of 1563

TM 9-2815-220-24

PISTONS, RINGS, AND ASSOCIATED PARTS REPLACE/REPAIR

0142 00

WP 0142 00-2

DISASSEMBLY (Continued)

2. Remove rings (1, 2, 3) from piston (4).

a. Place jaws of remover and replacer (5) (item 78, WP 0176) in the end gap of upper piston

ring (1).

b. Spread ring (1), lift out of groove, and remove from piston.

c. Mark rings for identification showing piston number and groove location.

d. Remove two intermediate compression rings (2) and oil control ring (3) in the same

manner.

5

4

3

2

2

1

6

3. Remove oil control ring (3) expander

spring (6) by separating at parting line.

4