TM-5-2330-378-14-P
SEMITRAILER, LOWBED: 40 TON CONSTRUCTION EQUIPMENT TRANSPORTER M870 AND M870A1
TECHNICAL MANUAL; OPERATOR'S, UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
JUNE 1999
TM-5-2330-378-14-P - Page 80 of 524
TM5-2330-378-14&P
3-9.
TIRE ANDWHEELASSEMBLYREPLACEMENT(M870).
ThisTaskCovers:
a.
Removal
b.
Installation
Initial Setup:
Tools/Test Equipment:
Personnel Required:
Two
- Common no. 1 tool set (Item 6, Appendix B)
*Trestle (Item 1, Appendix B)
a.
REMOVAL
NOTE
• There are 12 tire and wheel assemblies. Use this task to remove any tire and wheel
assembly.
• If removing inner and outer tire and wheel assemblies, do steps 1 through 8. If
removing outer tire and wheel assembly only, do steps 1 through 6 only.
1 .
Take chock blocks (1) out of stowage bin (2), and block tires (3) not being removed.
2
3
1
NOTE
Before
loosening
lug nuts, check
lug-nut
stamping
to determine
direction
of rotation
for removal.
2.
Loosen, but do not remove, 10 lug nuts (4) from 10 stud nuts (5).
3.
Place hydraulic hand jack (6) under axle (7) near tire and wheel assembly being removed (8 or 9). Jack up
axle (7) until inner and outer tire and wheel assemblies (8 and 9) are off the ground.
4.
Place trestle under axle (7) that has been raised with hydraulic hand jack (6).
5.
Remove 10 lug nuts (4) from 10 stud nuts (5).
3-18
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