Graco GM 5000 Instructions And Parts List page 25

'ROBLEM
lisplacement pump output low
or
lownstroke or both strokes
'aint leaks into wet-cup
;pitting from gun
CAUSE
I
SOLUTION
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Pump inlet screen clogged Clean screen.
I
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Pressure setting too low Increase pressure. See Startup.
Step
14, page 1 4 .
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Dirty outlet filter, tip filter or tip
properly
Replace packings. See page 26.
Piston packings worn
or
damaged
.
Clean filters andlor tips.
Intake valve ball check not seating Clean and service intake valve. See page 26.
Engine
RPM
too low
Increase throttle setting. See Startup,
Clutch worn or damaged Replace clutch. See page
34.
Partially clogged suction tube assembly Remove and clean suction tube. During normal
flushing remove and clean the suction tube as-
sembly separately to prevent further clogging.
Steps 5b and
14, page 1 4 .
Large pressure drop in hose
Replace displacement rod. See page 26.
Displacement rod worn or damaged
Replace packings. See page
26.
Throat packings worn or damaged
Tighten wet-cup just enough to stop leakage.
Loose
wet-cup
Use larger diameter hose.
Checkforlooseconnectionsatpumpintakeand
Air in fluid pump or hose
ticlhten. Them mime the Dump.
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&e Startup, page
1 4 .
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Tip partially clogged
Check fluid supply often to prevent runnlng the
Refillandprimethepump.SeeStafiup,page14.
Fluid supply is low or empty
Clear tip clog. See page
16.
pump dry.
Driedpaintparticlesfromapoorlycleaned
Remove and ciiian suction tube. During normal
suction tube assembly flushing remove and clean the suction tube
as-
semblv seoaratelv to Drevent further cloooina.
1 I
308-105
25