2-40Change 4TM 9-2350-267-20ITEM4244Q-QUARTERLYPREVENTIVE MAINTENANCE CHECKS AND SERVICESS-SEMIANNUALLYlINTERVALlA-ANNUALLYB-BIENNIALLYH-HOURSMI-MILESITEM TO BEINSPECTEDBackup HydraulicsystemAuxiliary PowerunitPROCEDUREABcABcDEOpen engine compartment access plate (p3-14) and inspect backup hydraulic pump(1). Check condition of V-belts (2), tensionand alinement (p 16-26).Inspect hydraulic lines for leaks and tightenany loose fittings (p 16-15).Inspect and tighten loose mountinghardware (p 16-15).Start APU (TM 9-2350-267-10). Listen forunusual noises m engine and generatedstarter which might indicate mechanicalmalfunction.Remove APU panel lenses for LOW OILPRESSure and HIGH AIR TEMP lights.Remove bulbs and visually check bulbs forbroken filaments. Replace if necessary.Check ENGINE OIL PRESSURE gage;gage should indicate 25-35 psi.Tighten fuel, oil and air connections thatleak.Troubleshoot APU as necessary (p 2-252).
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
