TM 9-2350-238-10ItemNo.16Table 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES FOR THEIntervalDuringRECOVERY VEHICLE M578–CONTINUEDItem toNot fully MissionCheck/ServiceProcedureCapable if:InstrumentCheck instruments for proper oper-Panela t i o n:t(1)(2)(3)(4)(5)Transmission OIL pressure in-dicator (1) - Normal pressure is18 to 45 psi (124.11 to310.28 kPa) at 1,835 to 1,900rpm and above; 10 psi (68.95kPa) at 1,000 rpm is minimumallowable.ENGINE OIL pressure indicator(2) - Normal operating pressureat 1,800 rpm and above is 50to 70 psi (343.75 to 482.65kPa). Minimum allowable pres-sure is 5 psi (34.48 kPa) at650 rpm, 28 psi (193.06 kPa)at 1,800 rpm, 30 psi (206.85kPa) at 2,000 rpm, and 35 psi(241 .35 kPa) at 2,300 rpm.Tachometer (3) and speed-ometer (4) should operate with-out excessive fluctuation orunusual noises.Engine coolant temperature in-dicator (5) - Normal operatingtemperature is 170°F to 185°F(77°C to 85°C); maximumallowable temperature is 230°F(110°C).Transmission oil temperature in-dicator (6) - Normal operatingtemperature is 165°F to 220°F(74°C to 104°C); maximumallowable temperature is 300°F(149°c).Transmission oilpressure, engine oilpressure, or tachom-eter inoperative. Anytemperature gaugereads high or fails towork.2-30
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