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 293 of 524

TM 5-2330-378-14&P

5-9.

TRUNNIONTUBE AND BRACKETREPLACEMENT(M870)(continued).

3

7

12

8

0

2

4

2.

Install rubber bushing (12) on trunnion tube (3). Repeat for other end of trunnion tube (3).

CAUTION

Be sure trunnion brackets hold trunnion tube securely. Failure to do so could result

in damage to the equipment.

3.

Lubricate threads of two capscrews

(8) and install two new self-locking

nuts (110),washers (9), and capscrews

(8) in trunnion bracket (11). Torque self-locking nuts (10) to 250ft-lb (339 Nom). Repeat for other trunnion

bracket (11).

4.

Using dolly jack, lift equalizing beam (2) into place until rubber bushing (12) and trunnion tube (3) are placed.

Repeat for equalizing beam (2) at other end of trunnion tube (3).

5.

Install trunnion cap (7) on equalizing beam (2). Lubricate threads of four capscrews (4) and secure with four

new self-locking nuts (6), washers (5), and capscrews (4). Torque self-locking nuts to 250 ft-lb (339 N-m).

Remove dolly jacks.

Repeat for other end of trunnion tube.

6.

Using hydraulic jack, remove trestles from two rear corners (1) of semitrailer.

FOLLOW-ON

TASKS:

Install tire and wheel assembly

(pare 3-9).

5-31