TIRE AND WHEEL ASSEMBLY MAINTENANCE (MODEL WPES-1).
This task consists of:
General Mechanics Tool Kit (Appendix B, Section III, Item 4)
Lugnut wrench and handle (towing vehicle)
Trailer on flat and solid ground or floor.
Trailer disconnect from towing vehicle (TM 104610-24010).
General Safety Instructions
Lifting heavy equipment incorrectly can cause serious injury.
To avoid injury to personnel, tire removal should ONLY be done on solid ground, i e.,
concrete or asphalt surfaces or hard ground or floors or similar hard surfaces.
To prevent the trailer from rolling or sliding, use blocks under the tires.
a. If the front (trailer hitch) tire is being changed, block both rear (generator end) tires. If the rear (generator end )
tire is being changed, block both front (trailer hitch end) tires.
Do not remove lug nuts at this time.
b. Using a lug nut wrench and handle, loosen lug nuts (1 through 6) one turn.
c. If the front (trailer hitch end) tire is being changed, rotate both front jack assemblies to the vertical position. If the
rear (generator end) tire is being changed, rotate both rear jack assemblies to the vertical position (refer to TM
d. For each jack assembly, remove safety pin and crank handle from rear of jack support bracket.
The jacks should be lowered at the same time and at the same speed.
e. For each jack, install crack handle on jack and turn crank handle to lower jack pad.