Original Operation Manual
12-2
•1307_PU280_SV1018DV1020_BAoDB_en•ski
en
Malfunctions and Troubleshooting
Fault
Possible cause
Remedy
11. When spraying the air motor of
the metering pump runs jerkily.
The spraying pressure indicated
by the pressure gauges and the
air pressure drop when the spray
gun is opened.
➤
The cross-section of the com
-
pressed air supply line is too
small.
➤
The air pressure in the supply
network is too low.
➤
Increase the cross-section of the
compressed air line.
➤
Increase the air pressure in the
network.
12. The air motor no longer works,
even though the compressed air
supply is assured.
No material pressure available in
the system.
➤
The air motor control is defective.
➤
Fuse for pneumatic valve defec
-
tive.
➤
Have the air motor repaired by
- Service.
➤
Have the fuse replaced by a
skilled electrician according to the
wiring diagram.
13. The filling level of the release
agent container and/or the colour
of the release agent changes.
➤
The seals on the material pumps
are worn.
➤
Replace the seals on the material
pumps.
14. A material flow heater does not
heat up.
➤
Technical defect in the material
flow heater.
➤
Have the material flow heater
examined by a skilled electrician.
Summary of Contents for DUOMIX PU280
Page 68: ......