User's Manual

Cleanup
14 3A0245A
Motor is Hot and Runs Intermittently
Low or Fluctuating Output
PROBLEM CAUSE SOLUTION
Motor is hot and runs intermittently. Determine if sprayer was operated at
high pressure with small tips, which
causes low motor RPM and excessive
heat build up
Decrease pressure setting or increase
tip size.
Be sure ambient temperature where
sprayer is located is no more than 90°F
and sprayer is not located in direct sun
Move sprayer to shaded, cooler area if
possible.
PROBLEM CAUSE SOLUTION
Low Output Worn spray tip. Follow Pressure Relief Procedure
Warning, then replace tip. See your
separate gun or tip manual.
Verify pump does not continue to stroke
when applicator is turned off.
Service pump. Check piston and intake
valves for wear or obstructions.
Filter clogged (If optional filter is
installed).
Relieve pressure. Check and clean fil-
ter.
Material hose length. Longer hose
length reduces sprayer performance.
Replace with hose length less than
specified maximum.
Pump hopper adapter connections. Tighten any loose connections.
Replace pump hopper adapter if
cracked or punctured.
Electrical supply with volt meter. Meter
must read:
210-255 Vac for 220-240 Vac models;
85-130 Vac for 100-120 Vac models.
Low voltages reduce sprayer perfor-
mance.
Reset building circuit breaker; replace
building fuse. Repair electrical outlet or
try another outlet.
Extension cord size and length; must be
at least 1.0 mm2 (12 awg) wire and no
longer than 90 m (295 ft). Longer cord
lengths reduce sprayer performance.
Replace with a correct, grounded
extension cord.
Leads from motor to pressure control
circuit board for damaged or loose
wires or connectors. Inspect wiring
insulation and terminals for signs of
overheating.
Be sure male terminal blades are cen-
tered and firmly connected to female
terminals. Replace any loose terminal
or damaged wiring. Securely reconnect
terminals.
Low stall pressure. Turn pressure control knob fully clock-
wise. Make sure pressure control knob
is properly installed to allow full clock-
wise position. Try a new transducer.
Plugged Prime Valve Material has dried and plugged the
prime valve
Aim hose into waste pail. Turn prime
valve from tool fill to dump and then
back to tool fill. If valve remain plugged,
see Bleed System Pressure, page 10.