TB-9-2510-251-13 HMMWV Operator and Field Maintenance, Installation & Parts Add-On-Armor Air Conditioning Download
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4-18 TB 9-2510-251-13 UNIT TROUBLESHOOTING (Cont’d) 6. SYSTEM HIGH PRESSURE SIDE RESTRICTION /(4-19 Blank) Step 1. Does gauge read as shown? If yes, check for restriction in compressor discharge line. If no, there is no high side pressure restriction. 7. COMPRESSOR MALFUNCTION Step 1. Does gauge read as shown and compressor is noisy when operating? If yes, is belt worn or loose? Tighten or replace belt. If no, go to step 2. Step 2. Does gauge read as shown and compressor is not noisy when operating? If yes, replace compressor. If no, replace expansion valve.