Graco GM 5000 User Manual

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Troubleshooting Guide
WARNING
Pressure Relief Procedure
To reduce the risk of serious injury , including fluid injec -
tion,
splashing in the eyes or on the skin, or injury from
moving parts, always follow this procedure when you
shut
of f the sprayer , when checking, adjusting or clean -
ing
the system, and when changing spray tips.
Engage the trigger safety latch.
T urn the engine ON/OFF switch to OFF .
T
urn the pressure control switch to OFF .
Disengage the trigger safety latch. Hold a metal
part of the gun firmly to the side of a grounded
metal pail, and trigger the gun.
Engage the trigger safety latch.
Open the fluid pressure drain valve and leave it
open until you start the sprayer again.
Disconnect the spark plug.
If you suspect the hose or spray tip is completely
clogged
or that pressure is not fully relieved after follow -
ing the steps above, VERY SLOWLY
loosen the tip
guard
or hose end coupling to relieve pressure gradual -
ly.
Now clear the tip or hose obstruction.
Check everything in the chart before disassembling the sprayer .
PROBLEM CAUSE SOLUTION
Engine/sprayer won’t start Engine switch not on T urn on.
Out of gas Replenish
Engine oil level low T ry starting engine. If light on rear of en -
gine glows, replenish oil.
Spark plug cable disconnected or
spark plug damaged
Connect cable on top of engine or replace
spark plug.
W ater frozen in pressure control Return pressure control to authorized
Graco dealer for repair .
Engine won’t “pull over” Oil seepage into combustion
chamber
Remove spark plug. Pull starter rope 3 or
4 times. Clean or replace plug. T ry to
start. Keep sprayer upright to avoid oil
seepage.
Engine operates, but displace -
ment pump doesn’t
Pressure control switch turned OFF T urn on.
Pressure setting too low Increase pressure.
Displacement pump outlet filter dirty Clean filter .
T ip or tip filter clogged Clean tip or tip filter .
Displacement pump rod seized by
dry paint
Service pump. See page .
Connecting rod worn or damaged Replace. See page 18.
Drive housing worn or damaged Replace. See page 19.
Electrical power not energizing field Check wiring connections. See Fig. 13,
page 23.
With pressure control switch ON and
pressure turned to MAXIMUM, use a test
light to check for power at black and white
wires from pressure control.
Have pressure control checked by autho -
rized Graco dealer .
Clutch worn or damaged Service. See page 22.
Pinion assembly worn or damaged Service. See page 20.

Graco GM 5000 Specifications

General

Brand	Graco
Model	GM 5000
Category	Paint Sprayer
Language	English