TM-9-2330-238-14

CHASSIS, SEMITRAILER: 6-TON, 4-WHEEL M295A1; SEMITRAILER, VAN: EXPANSIBLE, 6-TON, 4-WHEEL M313; SEMITRAILER, VAN: SHOP, FOLDING SIDES, 6-TON, 4-WHEEL M447 AND M447C; SEMITRAILER, VAN: REPAIR PARTS, SHOP EQUIPMENT, 6-TON, 4-WHEEL M749; SEMITRAILER, VAN: REPAIR PARTS STORAGE, 6-TON, 4-WHEEL M750

TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL

JULY 1992

TM-9-2330-238-14 - Page 172 of 462

TM 9-2330-238-14

4-37.

BLEEDING HYDRAULIC BRAKE SYSTEM (Con’t).

CAUTION

Do not reuse brake fluid when refilling master

cylinder. Use only clean brake fluid to prevent

contamination of brake system.

3.

Remove cap (4) and fill master cylinder (5) with

brake fluid in accordance with Chapter 3, Sec-

tion 1.

4.

Loosen bleeder valve (1) 3/4 turn counterclockwise.

CAUTION

5.

6.

7.

8.

9.

Do not pump master cylinder dry. Keep master

cylinder filled with brake fluid in accordance

with Chapter 3, Section I.

NOTE

Air in hydraulic brake system will appear as

hubbies in brake fluid when expelled from tube.

Depress and hold towing vehicle brake pedal until

all air bubbles are expelled into jar.

Tighten bleeder valve (1) and release towing

vehicle brake pedal.

Remove bleeder tube (2) and repeat steps 1

through 6 for remaining wheel cylinders, replen-

ishing brake fluid in master cylinder (5) as

necessary.

Install cap (4) on master cylinder (5).

Close towing vehicle shut-off valves and open air

reservoir draincock to release air pressure,

4-74

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