307-738 17
Troubleshooting
WARNING
INJECTION HAZARD
T
o reduce the risk of serious injury
,
follow the illustrated
Pressure Relief
Procedure
warning on page 8 when
-
ever you are instructed to relieve pressure.
NOTE: Repairs, other than those for which instructions
are
given
on page 19, 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 8). Then if the
sprayer won’t start, use the T roubleshooting 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 pages 12, 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 of
f W
orn ball
Repair gun; order kit no. 218–588
W
orn dif
fuser
Replace gun
Paint build-up between needle and
diffuser
Disassemble
and clean gun
Spray gun leaks
W
orn 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 10
Gun filter
, if used, is clogged
Clean or replace.
Sprayer will not start
Sprayer not plugged in
Plug in.
ON/OFF switch turned of
f T
urn 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 strand,
1.5mm (minimum) wire extension
cord
with a 3 prong plug
and a maxi
-
mum
length of 30 m.
Starter switch (18a) damaged
Replace; see page 19.
Motor worn or damaged
Return for repair
Motor runs but sprayer won’t run
Air in diaphragm housing
Bleed air
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