TM-9-2815-205-34

ENGINE WITH CONTAINER; MODELS 5063-5299, 5063-5392, 5063-5393, 5063-5395, 5063-5398, 5063-539F, 5063-539L

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

AUGUST 1992

TM-9-2815-205-34 - Page 522 of 596

TM 9-2815-205-34

4-9. AIR BOX PRESSURE TEST (Cont)

l

Avoid contact with hot manifolds, pulleys, and other moving parts to avoid

personal injury.

l

Wear proper ear protection when running engine. Noise volume of engine can

i.

L

k.

cause hearing loss or injury.

Start engine and operate at 2800 RPM, FULL

LOAD. Slowly open tube connector (1) and

read air box pressure on manometer

l

l

l

NOT E

A manometer measurement is

the sum of the displacements

from zero of the two columns of

mercury. This value is ex-

pressed as inches of mercury.

For model 5063-5299, air box

pressure must be at least 6.1

inches of mercury at 2800

RPM, FULL LOAD with zero

exhaust back pressure.

For

all

except

model

5063-5299, air box pressure

must be at least 39.0 inches of

mercury at 2800 RPM, FULL

LOAD with zero exhaust back

pressure.

scale.

Stop engine by moving governor stop lever to

NO FULL position.

Disconnect nonmetallic tubing (10) from air

box drain tube, or fitting, and manometer (2).

WARNING

4-38