TM-9-2350-277-20-1

CARRIER M113A3, M577A3, M1059A3, M1064A3, M1068A3 AND M58

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL VOLUME 1 OF 6

TM-9-2350-277-20-1 - Page 355 of 855

TM 9-2350-277-20-1

CARRIER DOES NOT ATTAIN HIGH SPEED — Continued

0061 01

5Y

WARNING

Perform test outdoors or in a well ventilated area to avoid

illness or death caused by inhalation of carbon monoxide

from the engine exhaust.

CAUTION

Use extreme care when making pressure checks with vehicle

in motion. Watch for pivot steer.

1.

If carrier is blocked unblock carrier. See TM 9-2350-277-10.

2.

Remove 9/16 in. hex plug from the LOCKUP (LU) pressure

test port (1) in the transmission input housing (2).

3.

Install pressure gauge and adapters in the LOCKUP (LU)

pressure test port (1) in the transmission input housing (2).

4.

Check lockup pressure while operating vehicle on level, flat

terrain with engine at 2500 RPM and shift lever at 1-4 position.

Lockup pressure must be 140-160 (965-1103 kPa).

5.

Is lockup pressure within the specified limits?

5YN

1.

Faulty transmission. Beyond unit

maintenance repair.

2.

Notify supervisor.

6Y

1.

Does original symptom still exist?

6YN

1.

If no faults found return carrier to

service.

006101-2

Change 5