5
309423
Grounding
WARNING
Improper installation or alteration of grounding plug
results in risk of electric shock, fire or explosion
that could cause serious injury or death.
1.
100–120 Vac models require a 50/60 Hz, 15A
circuit with a grounding receptacle. See Fig. 2.
2.
Do not alter ground prong or use adapter.
Fig. 2
grounding prong
grounded outlets
3.
120 Vac: A 12 AWG, 3 wires with grounding prong,
300 ft (90 m) extension cord may be used. Long
lengths reduce sprayer performance.
Troubleshooting
Relieve pressure
;
page 4.
MOTOR WON’T OPERATE
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
Basic Fluid Pressure
Problems
1. Pressure control knob setting. Motor will not run
if at minimum setting (fully counterclockwise).
1. Slowly increase pressure setting to see if mo-
tor starts.
2. Spray tip or fluid filter may be clogged.
2. Relieve pressure and clear clog or clean fil-
ter; refer to separate gun or tip instruction
manual.
Basic Mechanical
Problems
1. Pressure control knob setting.
1. Motor stops running when pressure setting is
reached.
2. Pump (13) for frozen or hardened paint.
2. Thaw sprayer if water or water-based paint
has frozen in sprayer. Place sprayer in warm
area to thaw. Do not start sprayer until
thawed completely. If paint hardened (dried)
in sprayer, replace pump packings. (
Dis-
placement Pump Replacement,
page 19.)
2. Displacement pump connecting rod pin (9a).
Pin must be completely pushed into connecting
rod (9) and retaining spring (9b) must be firmly
in groove of pump pin. See Fig. 10.
2. Push pin into place and secure with spring re-
tainer.
3. Motor (1). Remove drive housing assembly
(10). See page 17. Try to rotate fan by hand.
3. Replace motor (1) if fan won’t turn. See page
18.
Basic Electrical Problems
1. Motor control board. Board shuts down and dis-
plays error code.
1. Motor Control Board Diagnostics, page 14.
2. Electrical supply. Meter must read 85–130 Vac
for 100–120 Vac models.
2. Reset building circuit breaker; replace build-
ing fuse. Try another outlet.
3. Extension cord. Check extension cord continu-
ity with volt meter.
3. Replace extension cord.
4. Sprayer power supply cord (79). Inspect for
damage such as broken insulation or wires.
4. Replace power supply cord.
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