CAUTIONDownline pumping assemblies can be damaged if suction pressure falls below10 psi.Any pumping assembly may be damaged if discharge pressure risesabove 150 psi.Suction and discharge pressures will vary depending on operating conditionsand engine speed.k.l .m.Monitor suction pressure on PUMP SUCTION gauge (3).Also monitor dischargepressure on PUMP DISCHARGE gauge (1).If suction pressure falls below 10psi or discharge pressure rises above 150 psi, reduce engine speed toregain proper pressure as follows:(1) Turn ELECTRIC SPEED CONTROL (6) counterclockwise to decrease enginespeed.Decrease engine speed until reading on PUMP SUCTION gauge (3)or reading on PUMP DISCHARGE gauge (1) are within proper pressures.(2) If required, reduce engine speed to idle (1,000 rpm on ENGINETACHOMETER/HOURMETER (10)) until problem is corrected.If required, use ELECTRIC SPEED CONTROL (6) to control pump output byadjusting engine speed.Pump output is related to discharge pressure.Observe PUMP DISCHARGE gauge (1) and use ELECTRIC SPEED CONTROL (6) toadjust engine speed.Turn ELECTRIC SPEED CONTROL (6) clockwise to increasespeed and discharge pressure.Turn ELECTRIC SPEED CONTROL (6)counterclockwise to decrease speed and discharge pressure.Perform "During" PMCS (Table 2-10).CAUTIONEngine can be damaged if engine operating temperature rises above 220° F(104° C) or oil pressure falls below 10 psi (69 kPa).Engine alarm will sound if engine operating temperature(104° C) or oil pressure falls below 10 psi (69 kPa).n.If engine alarm (2) sounds:(1)(2)(3)Check ENGINE COOLANT TEMPERATURE gauge (10) andrises above 220° FENGINE LUBE OILPRESSURE gauge (11).If engine temperature or oil pressure is notwithin proper limits, shut down engine (step o below) .Reset engine alarm by pushing ENGINE ALARM reset button (2) .Notify unit maintenance.2-93TM 10-4320-344-10NOTENOTE
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