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. 0042 00-3 Change 1 INDICATION/CONDITION DECISION (NO/YES) PROCEDURAL STEPS 2. Are coupler seals on gladhands damaged or missing? No Go to (Indication/Condition 3). 1. Check for missing or damaged coupler seal on both service and emergency gladhands. Yes Replace gladhand coupler seal (WP 0079 00). 3. Do trailer service brakes operate properly? No Proceed to Service Brakes Do Not Apply (WP 0043 00). 1. Start towing vehicle engine. Yes Go to (Indication/Condition 4). 2. Depress brake pedal. 3. Check to see if trailer brakes operate. 4. Shut off towing vehicle engine.