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 193 of 524

TM 5-2330-378-14&P

4-47.

BRAKE ADJUSTMENT (continued).

d.

Pull air chamber push rod (3) to confirm whether approximately

112inch (1.3 cm) of free travel stroke exists. If

not, check slack adjuster (para 4-49).

1/2 in. (1.3 cm)

FREETRAVEL

0

3

it

e.

Apply between 90 and 95 psi (620.6 and 655 kPa) air pressure from truck tractor air gage. Make and hold afull

brake application.

Measure push rod (3) stroke; two inches (5 cm) is the maximum desired stroke.

2 In. (5 cm)

MAXIMUM

ULL

STROKE

3

f.

If stroke exceeds the two-inch (5 cm) limit, check brakeshoes (4-46) and slack adjuster (4-49), spring brake

@s

PULL

(00

chamber(4-53), or airbrake chamber (4-52).

FOLLOW-ONTASKS:

Unchock wheels (para 2-8).

4-105