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 271 of 524

TM 6-2330-378-14&P

5-4.

MIDDLEAXLE REPLACEMENT(M870A1).

ThisTaskCovers:

a.

Removal

b.

Installation

Initial Setup:

ToolstTest Equipment:

Equipment Conditions:

• Field maintenance tool set (Item 4, Appendix B)

Drain cocks opened (para 3-8).

• Tool kit, general mechanic's:

automotive

(Item 7, Appendix B)

Personnel Required:

Three

• Trestle, 10-ton (6) (Item 1, Appendix B)

MaterialslParts:

- Self-locking nut (4) (Item 31, Appendix 1)

a.

REMOVAL

NOTE

For secure placement of jacks, it is recommended that this procedure be performed

on hard floor surface.

1 .

Loosen, but do not remove, six rim stud nuts (1) on middle tire and rim assembly (2). Repeat for middle tire

and rim assembly (2) on other side.

WARNING

To prevent shifting, semitrailer must be adequately supported at front and rear.

Shifting of semitrailer may result in serious injury.

2.

Using hydraulic hand jack, raise two rear semitrailer corners (3) until wheels clear ground. Place trestle

underneath each rear semitrailer corner (3). Remove hydraulic jack.

2

3

3

5-9