TM-9-2320-273-10
TRUCK, TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER
TECHNICAL MANUAL; OPERATOR’S MANUAL
DECEMBER 2012
TM-9-2320-273-10 - Page 388 of 452
JACKING PROCEDURES
WARNING
The vehicle’s hydraulic jack is intended only for lifting and
is not a safe support for performing maintenance. Do not get
under vehicle unless it is properly supported by jack stands
or wood blocks. Failure to comply may result in injury or
death to personnel. Seek medical attention in the event of an
injury.
Ensure parking brake is released and chocks are placed
behind tires at opposite end of vehicle to be raised prior to
jacking operations. Do not place chocks in front of tires at
opposite end of vehicle to be raised. If vehicle is not free to
roll during jacking operations, it may topple jack. Move
chocks tight against tires after jacking and set parking brake.
Failure to comply may result in injury to personnel or
damage to equipment. Seek medical attention in the event of
an injury.
OPERATING HYDRAULIC JACK
1. To raise jack (Figure 13, Item 1), insert slotted end of two-piece handle
(Figure 13, Item 6) over release valve (Figure 13, Item 5), and turn release valve
(Figure 13, Item 5) right until seated.
2. Insert two-piece handle (Figure 13, Item 6) in pump assembly socket
(Figure 13, Item 4), and operate pump assembly (Figure 13, Item 3) by moving
handle (Figure 13, Item 6) up and down to raise jack cylinder (Figure 13, Item 2).
3. To lower jack (Figure 13, Item 1), insert slotted end of two-piece handle
(Figure 13, Item 6) over release valve (Figure 13, Item 5), and slowly turn release
valve (Figure 13, Item 5) left until jack cylinder (Figure 13, Item 2) lowers into
jack (Figure 13, Item 1).
END OF TASK
Figure 13. Operating Jack.
1
2
3
4
5
6
TM 9-2320-273-10
0030
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