PFT ZP 3 L MULTIMIX Overview – Operation – Spare Parts Lists
Troubleshooting
2016-07-04
39
Malfunction
Possible cause
Solution
Performed by
Motor protection switch triggered –
too full or mixing unit jammed
Open slide and empty, then
start up again
Operator
ZP 3 L does
not start
Air
Insufficient pressure gradient in
remote control due to blocked air
line or air nozzle tube
Clean blocked air pipe or air
nozzle tube
Operator
Air safety switch incorrectly set
Adjust air safety switch
Service technician
Air compressor not activated
Switch on compressor
Operator
Program does
not start
Microfuse on transformer is faulty
Replace the microfuse
Service technician
Pump does
not start
Pump motor defective
Replace the pump motor
Service technician
Defective connection cable
Replace the connection cable
Service technician
Rotor worn or faulty
Replace the rotor
Service technician
Stator worn or clamped too loosely
Tighten the clamp or replace
the stator
Service technician
Part not original PFT spare part
Use an original PFT spare part
Service technician
Red control
lamp lights up
to show fault
Overload from the pump seizing up
with dry material
Let the machine run in reverse
Operator
35.6 Indications of clogged hoses:
Performed by operator:
Blockages can occur in the pressure flange or in the
material hoses.
Indications of this are:
Steep rise in feed pressure
Seizing of pump
Sluggishness or seizing of pump motor
Widening and twisting of mortar hose
No material emerges from hose end
35.7 Possible causes:
Heavily worn material hoses
Poorly lubricated material hoses
Residual water in mortar hose
Clogging of pressure flange
Steep tapering of the couplings
Kink in mortar hose
Leaks in the couplings
Unmixed materials or materials unsuitable for
pumping
