12
PROBLEM
CAUSE
SOLUTION
Paint leaks into wet–cup
Throat packings are worn or damaged.
Replace the packings. See page 19.
Excessive surging from spray gun Spray tip 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 15 m (50 ft) grounded, flexible
hose (wire braid hose is unacceptable).
Not enough paint pressure
Pressure setting too low.
Increase the pressure.
Spray tip too big or worn.
Change the spray tip.
Pressure control frozen
2
or damaged by
overpressurization
3.
Try to thaw
2
, or replace the pressure control.
Displacement pump worn or damaged.
Replace the displacement pump. See page 19.
Tails or fingers in spray pattern
Pressure setting too low.
Increase the pressure.
Spray tip too big or worn.
Change the spray tip.
Fluid supply is low or empty.
Refill and prime the pump. Check fluid supply of-
ten to prevent running the pump dry.
Paint too viscous.
Thin the paint.
Wrong type hose.
Use minimum 15 m (50 ft), grounded, flexible
hose (wire braid hose is unacceptable).
Paint runs or sags
Spray tip to 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.
Spray tip is partially clogged.
Clear the tip. See page 7.
Fluid supply is low or empty.
Refill and prime the pump. Check fluid supply of-
ten 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.
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
15 m (50 ft) of flexible spray hose, (2) from using a wire
braid spray hose, (3) from adding a shutoff device be-
tween the pump outlet and the spray gun, or (4) from at-
taching a spray hose to the pressure drain valve.
Содержание 220-834
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