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 297 of 1563

TM 9-2815-220-24

ENGINE RUN-IN

0044 00

WP 0044 00-11

RUN-IN (Continued)

TEST SCHEDULE (Continued)

Run

Number

Time

(Minutes)

Speed

(rpm)

Net Observed Torque

foot-pound

N

•

m

11

2600-2660

Governor high idle check at no load

and dynamometer water off

conditions.

Adjust as necessary.

If

adjustment is necessary, re-check

engine power (torque) as in run

number 8.

12

2DR Engine

Only

1775-1825

Check and adjust as necessary

auxiliary drive governor speed at no

load and dynamometer water off

conditions.

13

5

2400

*FR-FL

*FR-FL

14

5

2200

*FR-FL

*FR-FL

15

5

2000

*FR-FL

*FR-FL

16

5

1800

*FR-FL

*FR-FL

* Full Rack-Full Load

13. Acceleration check.

a.

Accelerate to full throttle, no load (2600-2660 rpm), with a moderate steady throttle

movement.

b.

Return to low idle (675-725 rpm) with the same type throttle movement.

NOTE

It is permissible for engine rpm to go below 675 rpm briefly at return

to idle providing the governor responds and returns the engine rpm to

the low idle setting.

14. Check flame heater system for operation.

a.

Activate while idling and feel for warm intake elbow.

b.

Visually look for fuel leaks.

15. Check smoke generating system operation.

a.

Run engine at 2000 rpm.

b.

Activate smoke generating system.

c.

Verify that engine produces white smoke.