____________________________________________________________________________________________________________
PFT G 5 c FU 230
23
Check List
01.2005
____________________________________________________________________________________________________________
________________________________________________________________________________________
Knauf PFT GmbH & Co. KG
Telephone
09323 / 31-760
PO Box 60
Telefax
09323 / 31-770
D-97343 Iphofen
Internet
www.pft.de
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Machine does not stop
- Air pressure safety switch mis-
adjusted or defective
- Adjust air pressure safety switch
- Air hose or gaskets defective
- Replace
air
hose
or
check
compressor
- Air tap on spraying gun defective
- Compressor output insufficient
- Air pipe not connected to com-
pressor
No mortar flow
- Bad mixture in mixing tube
Add more water
(Air bubbles)
- Motor clutch defective
Replace motor clutch
- Mixing shaft defective
- Inlet at mixing tube is wet
- Mortar
clogs,
narrowing
the
mixing tube inlet
If this doesn’t help, clean or replace
mixing tube, dry and restart
Mortar flow “thin-thick”
- not enough water
- Water pressure safety switch
misadjusted or defective
- Mixing shaft defective; no original
PFT mixing shaft
If there is not enough water, increase
by 10 % for approx. ½ minute and then
turn back to normal setting or tighten
or replace pump components
- Pressure reducer misadjusted or
defective
- Rotor worn out, defective
- Stator worn out or too loose at
clamp
- Clamp defective (oval)
- Inner
wall
of
mortar
hose
defective
Replace mortar hose
- Rotor too deep in pressure flange Check mixing shaft and motor
- No original PFT spare parts
clutch
Water level rises in mixing tube
during operation
- Backpressure in mortar hose
higher than pump pressure
- Rotor or stator worn out
Tighten or replace stator; if required,
also replace rotor
- Hose block due to mortar being
too thick (high pressure due to
low water factor)
Remove hose blocks
Fault indicator lamp lights up
Overload
- Motor safety switch triggered
(pump motor)
Clean mixing tube and increase
water intake on starting
- due to pump stopping with dry
material
- due to insufficient water quantity
- Motor
safety
switch
(2.5 A)
triggered (star wheel motor)
Clean hopper and star wheel
- Clogging material in hopper
