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 AIR SYSTEM LOSES PRESSURE DURING OPERATION/SLOW AIR PRESSURE BUILDUP 0042 00 AIR SYSTEM TROUBLESHOOTING - Continued Table 1. Air System Loses Pressure During Operation/Slow Air Pressure Buildup - Continued. Change 1 0042 00-10 INDICATION/CONDITION DECISION (NO/YES) PROCEDURAL STEPS 10. Is air present at supply port of ABS ECU valve? No Go to (Indication/Condition 11). 1. Loosen air hose at ABS ECU valve supply port. Yes Replace air tank (WP 0078 00). 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 hose to ABS ECU valve supply port.