ORGANIZATIONAL TROUBLESHOOTING - continued

TM 9-2320-269-20-1

ORGANIZATIONAL TROUBLESHOOTING - CONTINUED

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

AIR SYSTEM AND BRAKES - CONTINUED

BRAKES RELEASE SLOWLY OR NOT AT ALL - CONTINUED

Step 2. Inspect brake assembly for binding parts.

a. Remove hub and drum assembly (page 2-611).

b. If parts are damaged, replace as needed (page 2-611).

c. If shoes (1), springs (2), or anchors (3) are tight, lubricate (LO 9-2320-269-12) or replace as

d. Install hub and drum assembly (page 2-611).

Step 3. Inspect brake hoses (4) for damage.

a. Using diagrams (page 2-608), find brake hoses (4).

b. If hoses (4) are bent or pinched between vehicle components, remove and reroute, or replace as

c. If hoses (4) are damaged or collapsed, replace as needed (page 2-567).

Step 4. Test brake valves for blocked exhaust ports (5).

a. Using diagrams (pages 2-608), find relay valve (6), quick-release valve (7), and relay quick-

release valve (8).

b. Start engine (TM 9-2320-269-10), let air pressure build up, and shut off engine (TM 9-2320-269-

10).

c. Listen for exhaust from valves (6), (7), and (8) while assistant depresses and releases brake

pedal.

d. If valves (6), (7), and (8), are damaged, or no exhaust is heard, clean ports (5), and replace as

needed using applicable maintenance procedure, or notify Direct Support Maintenance.

2-102

Index