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 00-8 INDICATION/CONDITION DECISION (NO/YES) PROCEDURAL STEPS 8. Is air present at control port of ABS ECU? No Go to (Indication/Condition 9). 1. Loosen air hoses at ABS ECU valve control port. Yes Go to (Indication/Condition 10). 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 ABS ECU valve control port.