Intermediate Problem Solving
TYPE OF
PROBLEM
WHAT TO CHECK
If check is OK, go to next check
WHAT TO DO
When check is not OK refer to this column
Low Output
1. Check for worn spray tip.
1. Follow Pressure Relief Procedure
Warning on page 8, then replace tip.
See your separate gun or tip manual.
2. Be sure pump does not continue to stroke
when gun trigger is released. Plug in and
turn on sprayer. Prime with paint. Trigger gun mo-
mentarily, then release and engage safety latch.
Relieve pressure, turn off and unplug sprayer.
2. Service pump. See page 22.
3. Release gun trigger. Observe resting position of
pump rod (222).
3. If pump consistently comes to rest
with rod (222) fully extended, the piston
packings and/or piston valve may be
worn. Service the pump. See page 22.
4. Check electrical supply with volt meter. Meter
should read 105–125 VAC.
4. Reset building circuit breaker; replace
building fuse. Repair electrical outlet or
try another outlet.
5. Check extension cord size and length.
5. Replace with a correct, grounded exten-
sion cord. Note that long lengths and/or
smaller gauges reduce performance.
6. Check motor brushes. See Electrical – What To
Check, item 4, on page 15.
6. See page 21.
