TM-9-2320-365-20-2 LMTV Unit Maintenance Manual M1078 Series - Volume 2 Download
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i5. VEHICLE BRAKES UNEVENLY, BRAKES PULL TO ONE SIDE OR GRAB (CONT) TM 9-2320-365-20-2 KNOWN INFO TEST OPTIONS Visual inspection REASON FOR QUESTION 2-1688 Change 1 12. Are vent hoses and vent valve for affected rear wheel brakes free from obstructions? NO If vent hoses or vent valves are plugged, brakes will not apply at affected wheel(s). Air tanks pressurized. Front wheel brake shoes OK. Front wheel brake adjustment OK. Front axle quick release valve OK. Air hose to front brake air chamber OK. Front brake vent hose OK. Front brake air chamber OK. Load sensing valve OK. Rear brake shoes OK. Rear wheel brake adjustment OK. Relay valve OK. Air hose to rear brake air chamber OK. POSSIBLE PROBLEMS Faulty rear brake vent hose or vent valve. Faulty rear brake air chamber(s). Replace rear brake air chamber(s) at affected wheel(s) (para 11-8). YES Replace damaged vent hose or vent valve (para 11-19).