Translation of the original operation manual
49
Airless 270_BAoDB_en_1405 • 0550022 • jw
Rectification of faults
Fault
Possible cause
Remedy
(continued) Pump runs but no
spraying material is transported to
the nozzle.
–
Ball of bottom valve does not lift
of
f (stuck).
–
Open the spray gun without nozzle.
–
Open the relief ball valve on the high
pressure
lter
.
–
Slightly knock the bottom valve from
the side (hammer).
–
Unscrew the suction system and
loosen the ball of the bottom valve from
below with a pin or a screwdriver
–
The bottom valve does not close.
–
Unscrew the bottom valve, thoroughly
clean ball and seat.
The pump delivers material but
does not stop when the spray gun
is closed.
–
Packing or valve worn.
–
Replace parts.
The pump runs uniformly
, but the
required spraying pressure is not
reached.
–
The air pressure is too low or
there is not enough air
.
–
Increase the air pressure on the pneu-
matic regulator or check the air line for
correct cross-section.
–
Spraying nozzle (new) too big.
–
Install a smaller nozzle or use a bigger
pump.
–
Spraying nozzle (worn) too big.
–
Install a new nozzle.
–
Air motor iced (runs to slowly).
–
If possible reduce the air inlet pressure.
