TM-9-2320-285-24-2

TRUCK TRACTOR, YARD TYPE, 43,500 LB GVW, DED, 4X2, ARMY MODEL M878A1

TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

OCTOBER 1985

TM-9-2320-285-24-2 - Page 110 of 698

TM 9-2320-285-24-2

13-17. TRANSMISSION MAINTENANCE (CONT)

a. Testing (cont).

(3)

Transmission Stall Test.

This task covers stall testing of the tractor transmission.

INITIAL SETUP:

Materials/Parts

Note pad

Pen

Personnel Required

Wheel Vehicle Mechanic MOS 63B

References

TM 9-2815-205-34 (6V53T Diesel Engine

Maintenance Manual)

Equipment Condition

Paragraph

Condition Description

Parked on level surface; engine

off.

Tractor frame securely fastened

to an immovable object.

All wheels chocked.

Service brakes applied.

STEP

LOCATION

ITEM

ACTION

REMARKS

TESTING

WARNING

Do not perform stall test while simply applying tractor service brakes; tractor will move at full

throttle even with service brakes applied.

Personal injury and property damage can result if

vehicle is allowed to move during stall test.

Be sure tractor frame is secured to an

immovable object, service brakes are applied, and all wheels are chocked before

accelerating engine.

Do not permit anyone to stand in front of tractor during stall test.

1

Tractor

a.

Engine

a

Start

cab

3-104