Graco 220-726, Инструкция и перечень запасных частей

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PROBLEM CAUSE SOLUTION
Electric motor labors when start-
ing, and trips building circuit
breaker or fuse Motor capacitor has failed Replace the capacitor. See page 22.
Circuit board has failed Replace the circuit board. See page 23.
Paint leaks into wet–cup Throat packings are worn or damaged Replace the packings. See page 18.
Excessive surging from spray gun Spray tip or fluid filter is plugged Disassemble and clean.
Spray tip too big or worn Change the spray tip.
Paint too viscous Thin the paint.
Wrong type hose Use minimum 50 ft. (15.2 m), static–free nylon
hose (wire braid hose is unacceptable).
Not enough paint pressure Pressure setting too low Increase pressure.
Spray tip too big or worn Change the spray tip.
Pressure control frozen
2
or damaged by
over–pressurization
3
Try to thaw, or replace pressure control.
Displacement pump worn or damaged Replace the displacement pump. See page 18.
Tails or fingers in spray pattern Pressure setting too low Increase pressure.
Fluid outlet filter is dirty or clogged Clean the filter. See page 14 or manual
307–273.
Spray tip too big or worn Change the spray tip.
Fluid supply is low or empty Refill and prime the pump. See page 10. Check
fluid supply often to prevent running the pump
dry.
Paint too viscous Thin the paint.
Wrong type hose Use minimum 50 ft. (15.2 m), static–free nylon
hose (wire braid hose is unacceptable).
Paint runs or sags Spray tip too big or worn Change the spray tip.
Spitting from gun Air in fluid pump or hose Check for loose connections at pump intake and
tighten. Then prime the pump. See page 10.
Tip partially clogged Clear the tip. See page 11.
Fluid supply is low or empty Refill and prime the pump. See page 10. Check
fluid supply often to prevent running the pump
dry.
Static sparking from the gun Spray or work being sprayed is not prop-
erly grounded Correct problem before continuing. Follow the
warning section, FIRE OR EXPLOSION HAZ-
ARD on page 3.
1
The electric motor has an over–temperature switch
which automatically resets upon cooling. If it opens
and the electric motor shuts itself off, unplug the
power supply cord and let the sprayer cool for 30 to
60 minutes. Always use the lowest pressure setting
needed when spraying. Prevent overspray from
restricting the motor air passages; check and clean
often.
2
Freezing results from failure to replace the water–
base paint or flushing water with mineral spirits, and
usually causes permanent damage to the pressure
control.
3
Over–pressurization results from (1) using less than
50 ft. (15.2 m) of nylon spray hose, (2) from using a
wire braid spray hose, (3) from adding a shutoff de-
vice between the pump outlet and the spray gun, (4)
from attaching a spray hose to the pressure drain
valve, or (5) from using a clogged or incorrectly as-
sembled filter.