PFT G 54 E - Troubleshooting Guide

PFT G 54 E Operating Instructions 09/2006
Knauf PFT GmbH & Co.KG
30
Fault – Cause - Remedy
Fault Cause Remedy
Machine will not start
Water
- Check water supply
Water pressure too low - - Clean water inlet filters
Gauge indicates less than 2.2 bar - Switch on high pressure pump
Machine will not start
Electricity
- Power supply okay?
- Earth leakage circuit breaker
activated?
- Main switch on?
- Fault lamp on?
- Motor protection switch actuated?
- Self-locking key not pressed?
- Contactor defective?
- Fuses defective?
- Water safety switch misadjusted?
Machine will not start
Air
- Insufficient pressure gradient in
remote control due to blocked air
line or air nozzle tube
Clean blocked air line or air nozzle
tube!
- Air safety switch misadjusted
Machine will not start
Material
- Too much thickened material in the
hopper or mixing area
Half-empty the hopper and restart
it.
- Material in pump component too dry
WARNING!
Turn off main switch and pull plug
first
Water is not running
(no indication by flow meter)
- Solenoid valve (bore hole in
membrane blocked)
- Solenoid coil defective
- Pressure reducing valve closed
- Water inlet on pump tube blocked
- Needle valve closed
- Cable to solenoid valve defective
Pump motor will not start - Pump motor defective
- Connection cable defective
- Plug or mounted socket defective
- Motor protection switch defective or
actuated
Stops after a short time - Water inlet filter dirty Clean or replace filter and
- Pressure reducer filter dirty
- Hose connection or water line too
small
enlarge water inlet.
- Water suction line too weak or long Connect additional high pressure
pump if necessary