TM-9-2320-366-20-2 MTV Unit Maintenance Manual M1083 Series - Volume 2 Download
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KNOWN INFO TEST OPTIONS i3. PARKING BRAKE DOES NOT RELEASE (CONT) Is air present at supply port of two-way check valve? Replace air hose 109 (para 11-21). TM 9-2320-366-20-2 5. YES NO POSSIBLE PROBLEMS Air tanks pressurized. Gladhands OK. Air hose 107 OK. Park control two-way check Air hose 103 OK. Faulty air hose 109. Faulty two-way check valve. Faulty air hose 119. Faulty inversion valve. Faulty air hose 221. Faulty anti-compounding valve. Faulty air hose 231. Visual Inspection REASON FOR QUESTION Two-way check valve cannot be tested if no air is present at supply port. 2-1886 Change 2