TM-9-2320-366-20-2 MTV Unit Maintenance Manual M1083 Series - Volume 2 Download
Page 1154 of 1632
i3. PARKING BRAKE DOES NOT RELEASE 1. KNOWN INFO Do all rear wheels fail to release? TEST OPTIONS Perform Brake System Troubleshooting (i5. Vehicle Brakes Unevenly). WARNING Read WARNING on following page. INITIAL SETUP Equipment Conditions Engine shut down (TM 9-2320-366-10-1). Tools and Special Tools Tool Kit, Genl Mech (Item 46, Appendix C) Goggles, Industrial (Item 15, Appendix C) TM 9-2320-366-20-2 NO YES START POSSIBLE PROBLEMS Faulty air hose 107. Faulty park control two-way check valve. Faulty SYSTEM PARK air supply valve. Faulty air hose 103. 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. Air tanks pressurized. Gladhands OK. 2-1878 Change 2 Visual Inspection REASON FOR QUESTION If some but not all wheels fail to release, fault is delivery of air to individual wheel brakes.