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TM-9-2320-334-13&P LHST Operator, Field and Parts Manual M1147A1 Trailer Download

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TM 9-2330-334-13&P TRAILER BRAKES UNEVENLY OR BRAKES PULL TO ONE SIDE OR GRAB -Continued 0044 00 BRAKES TROUBLESHOOTING - Continued Table 1. Trailer Brakes Unevenly Or Brakes Pull To One Side Or Grab - Continued. Change 1 0044 00-6 INDICATION/CONDITION DECISION (NO/YES) PROCEDURAL STEPS 5. Is air present at four port task valve delivery port to affected wheel(s)/brake(s) when brakes are applied? No Replace four port task valve (WP 0109 00). 1. Remove trestles from axle assembly. Yes Go to (Indication/Condition 6). 2. Lower jack to place trailer on ground. 3. Loosen air delivery hoses to spring brakes at delivery ports of four port task valve. 4. Start towing vehicle engine. 5. Allow brake air pressure to fully charge. 6. Depress brake pedal and have assistant check for presence of air escaping at delivery port of four port task valve and air hoses. 7. Shut down towing vehicle engine.