Troubleshooting - Graco TexSpray GTX Repair Parts Manual

Before performing any Troubleshooting procedures, follow Pressure Relief Procedure on page 6.
PROBLEM
Compressor not building
pressure or poor air flow
Unloader stuttering, unloading
too early, or unloading too late.
No material output from pump
Pump stops pumping
Engine won't start
18 309916

Troubleshooting

CAUSE
Open gun air valve (23)
Air leak
Damaged unloader
Not enough air pressure to pump
Material too thick
Damaged checkballs or seats
Plugged gun or nozzle
Plugged hose, or hose too small
Stalled pump
Engine switch is OFF
Engine is out of gas
Engine oil level is low
Spark plug cable disconnected or
damaged
Cold engine
Fuel shutoff lever is OFF
Oil is seeping into combustion
chamber
SOLUTION
Close valve.
Check all fittings and valve/regulator
settings.
Replace.
Shut off air at the gun, and increase
air pressure to the pump to
maximum. Turn regulator clockwise
to increase.
Thin the material. Material must be
mixed thoroughly to a consistency
that immediately folds back in as
you draw your finger through the
surface of the material.
Replace checkballs or seats.
Relieve pressure, page 6. Re-
move gun from material hose, and
cycle pump.
NOTE: A plugged gun or nozzle
may cause the hose and pump to
plug. If necessary, flush hose and
pump with clean water before
cycling material through the hose
with the gun removed.
Relieve pressure, page 6. Flush
hose with clean water, or try a 1--1/4
in. hose.
Shut down system. Relieve pres-
sure, page 6. Restart.
Contact an authorized Graco ser-
vice center.
Turn engine switch ON.
Refill gas tank. Honda Engine
Owners Manual.
Try to start engine. Replenish oil, if
necessary. Honda Engine Owners
Manual.
Connect spark plug cable or replace
spark plug.
Use choke.
Move lever to ON position.
Remove spark plug. Pull starter 3
or 4 times. Clean or replace spark
plug. Start engine. Keep sprayer
upright to avoid oil seepage.