Troubleshooting - Graco 231-576 Instructions-Parts List Manual

WARNING
INJECTION HAZARD
To reduce the risk of serious injury,
including fluid injection or splashing in
the eyes or on the skin, or injury from
moving parts, always follow the Pressure Relief
Procedure Warning, page 10, before checking,
adjusting, cleaning or shutting down the sprayer.
Disconnect the spark plug!
Check everything in the chart before disassembling the sprayer.
PROBLEM
The engine or sprayer won't
start start.
The engine won't "pull over".
The engine operates, but the
displacement pump does not displacement pump does not
operate.

Troubleshooting

CAUSE
The engine switch is not on.
The engine is out of gas.
The engine oil level is low.
The spark plug cable is disconnected or it is
damaged
There is frozen water in the pressure control.
There is oil seeping into the combustion
chamber.
The pressure control switch is turned off.
The pressure setting is too low.
The fluid filter (51) is dirty .
The tip or the tip filter is clogged.
The displacement pump piston rod is stuck
due to dried paint.
The connecting rod is worn or damaged.
The drive housing is worn or damaged.
The electrical power is not energizing the field. Check the wiring connections. See page 23.
The clutch is worn, damaged, or incorrectly
positioned.
The pinion assembly is worn or damaged.
SOLUTION
Turn on the switch.
Refill the gas tank. See page 8.
Try to start the engine. Replenish the oil, if nec-
essary. See Step 4, page 6.
Reconnect the spark plug cable or replace the
spark plug.
Allow the sprayer to thaw completely before
starting it.
Remove the spark plug. Pull the starter rope 3
or 4 times. Clean or replace the plug. Try to
start the engine. Keep the sprayer upright to
avoid oil seepage.
Turn on the switch.
Turn the pressure adjusting knob clockwise to
increase pressure.
Clean the filter. See page 12.
Clean the tip or the tip filter . See the gun
instruction manual.
Repair the pump. See manual 307–806.
Replace the connecting rod. See page 15.
Replace the drive housing. See page 16.
With the pressure control switch turned on and
the pressure turned to maximum, use a test
light to check the power at the black and white
wires from the pressure control.
Have the pressure control checked by an au-
thorized Graco dealer.
Replace the clutch. See page 20.
Repair or replace the pinion assembly. See
page 18.