Troubleshooting - Graco GM 5000 Instructions And Parts List

Trouble,shooting
WARNING
To
reduce
the risk
of
serious
bodily injury, always fol-
low
the
Pressure
Relief
Procedure Warning
on
Check everything
in the chart
before disassembling
the
sprayer.
(Continued on page 25.)
PROBLEM
Enginekprayer won't start
Engine won't "fire"
Engineoperates,butdisplacement
pump doesn't
1
Engine switch not on
I
Turn on engine switch.
I
1.out of gas
I
Refill gas tank.
I
Engine
oil
level low
spark plug damaged
Try starting engine. If light
on
rear of engine
Connect cable on top of engine or replace spark
Spark plug cable disconnected or
glows, replenish oil.
Plug.
waterrrozen in pressure control
er for repair.
RetumpressurecontroltoauthorizedGracodeal-
Oil seepage into combustion
Cleanandreplaceplug.Trytostart.Keepsprayer
chamber
Removesparkplug.Pullstarterrope3or4times.
Turn on pressure control switch. Pressure control switch turned OFF
I
upright to avoid oil seepage.
Pressure setting too low
Displacement pump outlet filter dirty
Tip or tip filter clogged
Displacement pump rod seized by
dry paint
Connecting rod worn or damaged
Drive housing worn or damaged
Electrical power not energizing field
Clutch worn or damaged
Pinion assembly worn or damaged
Clean filter.
Clean tip or tip filter.
Replace connecting rod. See page
30.
Replace drive housing. See page
31.
Check wiring connections. See page
3 6 .
With pressure control switch ON and pressure
turnedtoMAXIMUM,useatestlighltocheckcon-
linuity across black and while wires from pres-
sure control.
Have pressure control checked by authorlzed
Graco dealer.
Service clutch. See page
34.
Service pinion assemblv. See Dam
32.
-
~
Ingine starts but dies
)isplacement pump output low on
Add oil. Oil level drops below oil sensor
lpstroke
Clean screen. Pump inlet screen clogged
. -
Piston ball check not seating
Replace sleeve gasket. See page 26.
Sleeve gasket in displacement pump
Replace packings. See page 26.
Piston packings worn or damaged
Service piston bail check. See page 26.
worn or damaged
24
308-105