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 270 of 1563

TM 9-2815-220-24

ENGINE STALL TEST

0041 00

ENGINE STALL TEST (Continued)

PROCEDURE

OBSERVATION

ANALYSIS

Engine speed 1800-1950 rpm.

Engine power is

normal.

Engine speed below 1800 rpm.

Power is below

normal.

Repeat the preceding

step, but operate

engine for 30 seconds.

Engine speed above 1950 rpm.

Transmission is

slipping or fuel

injection pump is out

of adjustment.

PROBABLE CAUSE

CORRECTIVE ACTION

(1) Investigate transmission clutches, brakes,

and vehicle suspension for being too tight.

Repair as required.

Refer to pertinent

vehicle technical manual.

a. If stall speed is normal (1800-1950 rpm),

low performance is vehicle related, or

vehicle may be operating under severe

conditions.

(2) Check vehicle performance on hard road:

if performance is satisfactory, limit

vehicle operation under severe conditions

to short periods of operation.

Possible

engine damage may be prevented.

(1) Investigate for transmission slippage.

Refer to vehicle technical manual.

b. If stall speed is above normal (more than

1950 rpm), low performance is transmission

related and engine is over-powered.

(2) Replace fuel injection pump (WP 0115).

END OF WORK PACKAGE

WP 0041 00-2