Malfunction Checklist - WAGNER Plast Coat 25 Operating Manual

GB

malfunctIon checklIst

11
MAlFuNCtION CHeCklISt
fault
Motar spraying machine does
not start
Mortar spraying machine
cannot turn pump screw.
Mortar spraying machine
cannot be switched on/off by
means of the remote control.
Mortar spraying machine builds
up pressure in the mortar hose.
However, no coating material
comes out of the spray lance.
The spray jet stops while spray-
ing, "spluttering" occurs.
Coating material suddenly stops
coming out while spraying.
No clean, even spraying pattern. Air channels in the texture nozzle are
42
possIble cause
The mortar spraying machine has been
overloaded.
Pump screw is stuck in pump jacket.
Pump was not lubricated with pump
antiseize.
Remote control not on.
Remote control line not connected or
defect.
Coating material "blockages" in mortar
hose. Motor hose not pre-rinsed with
synthetic resin dispersion or cellulose
paste.
No coating material in receptacle.
Pump has sucked up air.
Coating material is not sliding down in
the receptacle.
Blockage in texture nozzle due to im-
purities in the coating material or too
large grain size.
partially blocked with coating material.
Plast Coat 25 · 35
remedy
Set master switch and changeover switch to „0".
Turn mortar spraying machine back on after
about 10 sec.
Caution: set changeover switch to „0" before
turning on master switch.
Set delivery rate switch to "0". Set changeover
switch to (forward). As soon as the
pump screw rotates at a constant speed, slowly
set the delivery rate switch to the desired delivery
rate.
Set changeover switch to "AUTO".
Connect remote control, check connections,
check remote control line for damage.
Find blockage by feeling the mortar hose. Re-
move pressure from mortar hose set changeover
switch to (backwards).
Pump coating material back into receptacle.
Mortar hose must be without
pressure.
Observe pressure gauge ––> 0
bar. Wear protective goggles.
Disconnect mortar hose – bend the blocked area
by hand. Rinse mortar hose with a water hose.
When the blockage has been removed, fill the
mortar hose with synthetic resin dispersion or
cellulose paste. Re-connect mortar hose.
Fill with coating material and pump in circulation
until coating material is free of bubbles.
Caution:
do not allow the pump to run dry. the pump
will heat up, thus danger of "blockage". Refill
with coating material.
In all cases turn off mortar spraying machine (see
safety requirements) – then push down the coat-
ing material.
Turn off mortar spraying machine. Close the
material tap on the spray lance. Remove texture
nozzle and clean. If necessary, use larger texture
nozzle. Rule of thumb:
Grain size x 3 ––> Nozzle size.
Turn off mortar spraying machine.
Close material tap on spray lance.
Remove texture nozzle. Clean air channels in the
texture nozzle.