Troubleshooting - Graco GM 3000 Instructions-Parts List Manual

Troubleshooting
INJECTION
HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow the
Pressure Relief
Procedure
on page
12.
Check everything
in the
chart before disassembling the
sprayer.
See
pages 37
through 43
for
description
of
referenced Darts
PROBLEM
I
CAUSE
I
SOLUTION
The engine or sprayer won't
start.
~~~~ ~~~~ ~~ ~~~
The engine switch is not on.
Try to start the engine. Replenish the oil, if nec The engine oil level is low.
Refill the gas tank. See page 8. The engine is out of gas.
Turn on the switch.
essary.
See
Step 3, page 6.
The spark plug cable
is
disconnected or it is
spark plug. damaged
Reconnect the spark plug cable or replace the
~
. .
There is frozen water in the sprayer. Allow the sprayer to thaw completely before
starting
i t .
The engine won't "pull over".
Remove the spark plug. Pull the starter rope 3 Oil is seeping into the combustion chamber.
or 4 times. Clean or replace the
olua.
TN to
I
The engine operates, but the
displacement pump does not
operate.
. .
I
avoid oil seepage.
start the englne. Keep'the sprayer upright to
I
The pressure control switch is turned off.
I
Turn on the switch.
The pressure setting is too low.
I
Turn.the pressure adjusting knob clockwise
to
increase pressure.
The fluid filter (21) is ditty.
I
Clean the filter. See page 13.
The tip or the tip filter is clogged.
I
Clean the tip
or
the tip filter. See the gun
instruction manual.
The displacernent-pump rod is stuck due to Repair the pump. See page
32.
dried paint.
I
The connecting rod
is
worn or damaged.
I
ReDlaCe the connectina rod.
See oaoe
16.
The drive housing is worn or damaged.
Check the wiring connections. See page
27. The electrical power
is
not energizing the field.
Replace the drive housing. See page 16.
light to check the power at the black and white
wires from the pressure control.
the pressure turned to maximum, use a test
With the pressure control switch turned on and
Have the pressure control checked by an au-
thorized Graco dealer.
The clutch is worn. damaged, or incorrectly
The pinion assembly is worn or damaged.
positioned.
Replace the clutch. See page
25.
ReDair or redace the Dinion assemblv. See
14
308-620