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 258 of 1563

TM 9-2815-220-24

ENGINE LEAK TEST

0038 00

TEST

CAUTION

Make sure regulator is turned all the way down (counterclockwise)

before air supply is attached so that seals in the engine will not be

damaged.

Do not let pressure go above 6 inches mercury (Hg).

1. Attach regulator assembly (7) to an air supply.

a. Slowly adjust air pressure until manometer (13) reaches and stabilizes at 6 inches Hg.

2. Close air valve adapter (5) and observe manometer (13) for 3 minutes.

a. If manometer looses more than 0.9 inches Hg in 3 minutes, check for leaks with water and

soap solution.

b. When leaks are found, shut off air supply and repair leaks.

Refer to the appropriate section

of this manual for repair.

c. Repeat steps a and b until pressure loss is less than 0.9 inches Hg in a 3-minute period.

5

13

7

WP 0038 00-4