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PFT G 5 c FU 230
22
Check List
01.2005
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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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How can problems with the PFT G 5 c FU 230 mixing pump be avoided or rectified?
Fault
Cause
Remedy
Machine does not start!
Water
- Check water intake
Water pressure too low -
- Clean water inlet filter
Gauge indicates pressure below
2.2 bar
- Switch on high pressure pump
Machine does not start!
Electricity
- Power supply okay?
- FI safety switch triggered?
- Main switch turned on?
- Fault indicator lamp lights up?
- Motor safety switch triggered?
- Self-holding button not pressed?
- Automatic plump level defective?
- Fuses defective?
- Water safety switch misadjusted:
- Pump jammed?
Machine does not start!
Air
- Insufficient pressure gradient in
remote control due to blocked air
pipe or blocked air nozzle tube
Clean blocked air pipe or air nozzle
tube!
Machine does not start!
- Air safety switch misadjusted:
- Compressor
connected
and
switched on?
Machine does not start!
Material
(No display by flow meter)
- To much dry material in hopper or
mixing area
Half-empty hopper and restart.
- Material in pump component too dry WARNING!
Turn off main switch and pull plug
first
Water isn’t running!
(No display at flow meter)
- Solenoid valve (bore in diaphragm
blocked)
- Solenoid defective
- Pressure reducing valve closed
- Water intake blocked at pump tube
- Needle valve closed
- Cable to solenoid valve defective
Pump motor does not start!
- Pump motor defective
- Connecting cable defective
- Plug or panel-mounted socket
defective
- Motor safety switch defective or
triggered
Machine stops after a short while! - Water inlet filter contaminated
Clean or replace filter and
- Pressure reducing filter
contaminated
enlarge water connection
- Hose connection or water supply
too small
- Water intake line too weak or too
long
possibly install additional high
pressure pump
