Graco PT2500 - Manual (Page 16)

16 820-133
Troubleshooting
WARNING
To reduce the risk of injury, including fluid injection, al-
ways follow the Pressure Relief Procedure Warn-
ing on page 11 before checking or repairing any part
of the spray system.
NOTE: Repairs, other than those for which instructions
are given on page 18, should be performed by a trained
and qualified repair agency.
NOTE: If your sprayer is not operating well, or will not op-
erate at all, check for obvious problems first. Follow the
Startup procedure exactly (see page 11). Then if the
sprayer won’t start, use the Troubleshooting Chart for
help in identifying the possible cause.
NOTE: Remember, taking the time after each use of the
sprayer to perform all of the maintenance procedures
given on page 13 and 14 will help prevent down time and
costly repair bills.
PROBLEM CAUSE SOLUTION
Poor spray pattern Spray tip worn Change tip
Paint too thick Thin, try larger tip
Spray gun won’t shut off Worn ball Repair gun; order kit no. 218–588
Worn diffuser Replace gun
Paint build-up between needle and
diffuser Disassemble and clean gun
Spray gun leaks Worn seal or loose fluid fitting Repair gun; order Kit no. 218–588;
tighten fluid fitting.
Spray gun won’t spray, or low
output from gun Paint supply empty Refill and reprime system.
Spray tip clogged Use Reverse-A-Clean feature to
clear tip clog; see page 12
Gun filter, if used, is clogged Clean or replace
Sprayer will not start Sprayer not plugged in Plug in
ON/OFF switch turned off Turn switch on
Sprayer left pressurized when shut
off Relieve pressure first, then start
Motor overheated Shut off, relieve pressure, allow to
cool
NOTE: Sprayer restarts automati-
cally when cool if it is left on
Blown building fuse or circuit
breaker tripped Replace or reset
No voltage or low voltage in
electrical outlet Test the outlet or try plugging spray-
er into another outlet
Damaged power supply cord or
extension cord, or wrong type of
extension cord Return for repair; use only 3 wire, 16
gauge (minimum) extension cord
with a 3 prong plug and a maximum
length of 30 m (100 foot)
Starter switch (18a) damaged Replace; see page 18
Motor worn or damaged Return for repair
Motor runs but sprayer won’t run Air in diaphragm housing Bleed air