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 279 of 524

TM 5-2330-378-14&P

5.5.

FRONT AND REAR AXLE REPLACEMENT (M870) (continued).

b.

INSTALLATION

1.

Install two rubber pads (11) in equalizing beam (2). Repeat for other side.

2.

Using dollyjack,

lift axle (1) into position overequalizing

beam (2) and puttrestles

back under rearsernitrailer

corners.

3.

Lower axle (1) into place. Be sure two axle adapters (12) are in correct position on two equalizing beams (2).

4.

Install axle cap (6) and rubber wrapper (10) on equalizing beam (2).

5.

Install two self-locking nuts (9), washers (8), and capscrews (7) on axle cap (6).

6.

Install two self-locking nuts (5), washers (4), and capscrews (3) on axle cap (6).

7.

Repeat steps 4 through 6 for other end of axle (1).

8.

If replacing rear axle, install two airbrake chambers (para 4-52). If replacing front axle, install two spring brake

chambers (para 4-53).

9.

Install backing plate and camshaft (para 5-12).

10.

Install slack adjuster (para 4-48).

<S>

M

Install two sets of brakeshoes (pare 4-46).

12.

Install two hubs and brakedrums (para4-68).

13.

Using hydraulic jack, lift axle (1) and remove

trestle from under equalizing beam (2). Lower

axle (1) and remove hydraulic jack.

14.

Repeat for other end of axle (1).

2

0

0

0

FOLLOW-ON

TASKS:

Install

tire

and

wheel

assemblies

(para

3-9).

5-17