Troubleshooting
PROBLEM PROBLEM
PROBLEM
CAUSE CAUSE
CAUSE
SOLUTION SOLUTION
SOLUTION
Checkelectricmotorrotation.Both
motorandhydraulicpumpmust
rotatecounterclockwisewhen
viewedfromshaftend.Ifrotation
isincorrect,reverseleadsL1and
L2.SeeConnect Connect
Connect
Electrical Electrical
Electrical
Cord Cord
Cord
in
Operationmanual.
Checkdipsticktoensurethat
hydraulicreservoirisproperlylled
(seeOperationmanual).
Checkthatinletttingisfullytight,
toensurenoairisleakingintothe
pumpinlet.
Pumpisnotprimedorlostitsprime.
Toprimepump,rununitatlowest
pressuresettingandslowly
increasepressure.Insomecases
itmaybenecessarytoremove
motorcoveranddrivebelttoallow
formanual(counterclockwise)
rotationofhydraulicpump.Turn
fanpulleybyhand.Verifyoilow
byremovingoilltertoseeowinto
ltermanifold.Reinstalloillter.Do
NOToperateunitwithoutaproperly
installedoillter.
Screechingnoiseischaracteristic
ofcavitationandisnormalat
initialstartupforamaximumof30
seconds.
Ifnoisecontinueslongerthan30
seconds,press
toshutoffthe
motor.Checkthattheinletttings
aretightandthatthepumphasnot
lostitsprime.
Hydraulicuidistoohot.
Ensurethatthereservoirisproperly
serviced.Improveventilationto
allowmoreefcientheatdissipation.
Electricmotoroperatinginwrong
directionfor3Phasesystem.
Motormustoperatecounter-
clockwisefrompullyend.
Hydraulicpumpdoesnotdevelop
pressure.Loworzeropressure
withscreechingnoise.
Drivebeltlooseorbroken.
Checkdrivebeltcondition.Replace
ifbroken.
38 334946C