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TM 9-2330-331-14&P
0016 00
Jack must be positioned directly under axle to prevent slippage.
Direct all personnel to stay clear of vehicle when vehicle is
supported in the air. Failure to do so could result in serious
injury and damage to equipment.
To prevent shifting of trailer, floor jack should be used only on a hard
level surface. Failure to follow this warning could result in serious
injury and damage to equipment.
Spare tire weighs 205 lbs. (93 kg) and may fall if procedures are
not followed carefully. Injury to personnel or damage to equipment
may occur.
Wheel replacement in the form of tire-changing is also an
Operator task. If floor jacks and jack stands are not available,
use BII 20-ton jack.
There are twelve tire and wheel assemblies and they are removed and
installed the same way. This procedure covers one wheel assembly.
Outer wheel assembly (5) must be removed to replace inner wheel assembly (4).
1. Chock tires on axles not being lifted.
In arctic and extreme cold conditions the fluid in the hydraulic jack needs to
be changed to Arctic OEA (WP 0086 00-2, Item 8) before using it. Failure to
follow this caution may result in damage to equipment.
2. Position jack under trunnion (3) of front or rear axle and spring seat (1) of center axle closest to where
wheel(s) will be removed, as shown (Figure 2).
3. Loosen, but do not remove, ten nuts (6) while semitrailer tires are in contact with ground. If
necessary, use a cheater pipe for additional leverage.
4. Jack up axle until wheel assemblies (4 and 5) clear the ground. Position jackstand under axle if available.
5. Remove ten nuts (6) and wheel assemblies (4 and 5).


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