TM-9-2320-365-20-2 LMTV Unit Maintenance Manual M1078 Series - Volume 2 Download
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KNOWN INFO TEST OPTIONS 1. YES NO Is orifice screw or orifice filter (if equipped) free of debris? v4. SPARE TIRE RETAINER DOES NOT LOWER Clean orifice screw and/or replace orifice filter (if equipped). 2-2118.6 Change 1 TM 9-2320-365-20-2 INITIAL SETUP Equipment Condition Engine shut down (TM 9-2320-365-10). Air tanks drained (TM 9-232-365-10). Personnel Required (2) Material/Parts Rag, Wiping (Item 51, Appendix D) Filter Element, Fluid (Item 14.1, Appendix G) Visual Inspection REASON FOR QUESTION If orifice screw and/or orifice filter (if equipped) is clogged, spare tire may not lower. Air/hydraulic power unit oil level OK. Air/hydraulic power unit primed. Hydraulic and air hoses OK. Air tanks charged. Hydraulic oil filter OK. Other hydraulic manifold functions OK. POSSIBLE PROBLEMS Debris in orifice filter (if equipped). Debris in orifice screw. Faulty hydraulic manifold SPARE TIRE valve. Faulty spare tire retainer cylinder. Tools and Special Tools Tool Kit, Genl Mech (Item 44, Appendix C) STE/ICE-R (Item 39, Appendix C) Pan, Drain (Item 24, Appendix C) Goggles, Industrial (Item 15, Appendix C) Transmitter, Pressure (Item 1, Appendix J) Wrench, Torque, 0-200 lb-in. (Item 58, Appendix C) Key, Socket Head Screw (Item 35.1, Appendix B) References TM 9-4910-571-12&P START NOTE Vehicles S/N 0001 through 7558, with hydraulic manifold P/N HFC32598, were not originally equipped with an orifice filter. However, an orifice filter may have been installed during previous maintenance to the hydraulic manifold. WARNING Read WARNING on following page.