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. 0043 00-5 Change 1 INDICATION/CONDITION DECISION (NO/YES) PROCEDURAL STEPS 4. Is air present at delivery ports of front four port task valve? No Replace front four port task valve (WP 0109 00). 1. Loosen air hoses at front four port task valve delivery ports. Yes Go to (Indication/Condition 5). 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 hoses to four port task valve delivery ports.