TM 10-4320-344-10Downline pumping assemblies can be damaged if suction pressure falls below10 psi.All pumping assemblies can be damaged if discharge pressure risesabove 150 psi.Suction and discharge pressures will vary depending on operating conditionsand engine speed.k.Monitor suction pressure on PUMP SUCTION PRESSURE gauge (10).Also monitordischarge pressure on PUMP DISCHARGE PRESSURE gauge (1). If suctionpressure falls below 10 psi or discharge pressure rises above 150 psi,adjust AUTO THROTTLE rheostat (3) as required.Refer to step j above.l .Perform “During” PMCS (Table 2-11).CAUTIONTo prevent damage to engine, DO NOT shut down engine suddenly fromfull-load running.m.Shut down pumping assembly as follows:(1)(2)(3)(4)(5)Turn AUTO THROTTLE rheostat (3) to START (idle position) .idle for 2 or 3 minutes.Set ENGINE switch (2) to STOP.Set MAIN POWER switch (9) to OFF.Close control panel door.Let engineUnlock AUTO DEFEAT handle (7) and pull out.Lock in extended position.n.Perform "After" PMCS (Table 1-11).o .Refer to Figure 2-26 and perform the following if extended shutdown isexpected or move to a new location is required.(1)(2)(3)Push air outlet scoop handle (3) to close air outlet scoop (1) andengine exhaust door (2) .Open pump drain plug (4) and allow pump to drain.After all water has drained from pump, install drain Plug (4).2-103CAUTIONNOTE
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