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 DRAWBAR DOES NOT RAISE/LOWER -Continued 0050 00 PNEUMATIC TROUBLESHOOTING - Continued Table 1. Drawbar Does Not Raise/Lower - Continued. 0050 00-5 Change 1 INDICATION/CONDITION DECISION (NO/YES) PROCEDURAL STEPS 4. Is air pressure present at port EA of drawbar lift control valve? No Replace drawbar lift control valve (WP 0094 00). 1. Disconnect hose 002 from port EA on drawbar lift control valve. Yes Replace breather valve (WP 0082 00). 2. Lower handle on drawbar lift control valve. 3. Listen and feel for air escaping from port EA on drawbar lift control valve. 4. Release handle of drawbar lift control valve.