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 SERVICE BRAKES DO NOT APPLY-Continued 0043 00 BRAKES TROUBLESHOOTING - Continued Table 1. Service Brakes Do Not Apply - Continued. Change 1 0043 00-4 INDICATION/CONDITION DECISION (NO/YES) PROCEDURAL STEPS 3. Is air present at supply port of front four port task valve? No Replace air hose 202. 1. Loosen air hose 202 from supply port on four port task valve. Yes Go to (Indication/Condition 4). 2. Start towing vehicle engine. 3. Depress towing vehicle brake pedal. 4. Check for presence of air. 5. Shut down towing vehicle engine. 6. Tighten air hose202 to four port task valve supply port.