User's Manual

Troubleshooting

Problem Problem

Problem

Cause Cause

Cause

Solution Solution

Solution

Chemicalincompatibility.ConsultyourGracodistributorto

seeifyouhavethecorrecthose

foryourapplication.

Normalwear.

Thehosemayhavefaileddueto

normalwear.Replaceasrequired.

Failureduetopulsations.

Ifyoupumpisequippedwitha

pulsationdampener,adjustits

pressure.Ifyoudonothavea

dampener,consultyourGraco

distributor.

Toohighoutletpressure.

Checkitemslistedin“Highoutlet

pressure.”Runningthepump

againstaclosedvalve,evenfora

shortamountoftime,maydamage

hose.

Poorhoselife.

Settledsolidsinhose.

Flushthepumpandhosepriorto

turningthepumpoff.

Hoselubeleakingfromfrontcover.Coverboltsover-tightened.

Refertotorquespecicationsin

InstalltheFrontCover,page16.

Lubricantleaks

Hoselubeleakingfromhose

clamps.

Pumphousingoverlled.Check

hoselubelevelandadjustas

necessary.

Hosefailedbecauseitwrapped

aroundroller.

Pumpwasoperatedagainsta

closedoutletvalveorblockedline.

Replacehose.Checkpressure

reliefsystem.Checkthatvalves

areopen.Clearanyblockages.

3A1939G