JACKING AND SUPPORTING TRUCK CHASSIS.

TM 9-2320-211-20-3-1

10-4. JACKING AND SUPPORTING TRUCK CHASSIS.

TOOLS: Hydraulic floor jack

Wheel chocks (4)

Motor vehicle trestle, 7-ton capacity

8 x 8 x 24-inch wood block (4)

8 X 8 X 42-inch wood block (8)

SUPPLIES: None

PERSONNEL: One

EQUIPMENT CONDITION: Truck parked, engine off, handbrake set.

a. Raising Front Chassis.

FRAME 1

Chock rear wheels.

Put hydraulic jack under axle housing (1) as shown.

WARNING

Keep hands away from front wheels when jacking

truck. Wheels may turn as they clear the ground.

Personnel can be injured.

3. Using hydraulic jack, jack up truck until front wheels (2) are six inches off

the ground.

4. Lay two 42-inch wood blocks (3) under chassis (4) and two 24-inch wood

blocks (5) next to each other on top of wood blocks (3). Put trestle (6) on

top of four wood blocks as shown.

5. Put two 24-inch wood blocks (5) and trestle (6) on other end of the 42-inch

wood blocks (3) under other side of chassis (4).

6. Using hydraulic jack, jack down truck onto trestles (6).

END OF TASK