PFT PFT G4, Operating Instructions Manual, Page: 30 / 68

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Mortar flow "thick-thin" - Power cable too long or too weak Correct faults
- Head of rotor too deep inpressure
flange
- No original PFT replacement parts
Water rises in mixing tube during
operation
- Back pressure in mortar hose higher
than pump pressure
- Stator or Rotor worn Tighten or replace stator
- Hose blocked by mortar that is too
thick (high pressure caused by too
low water factor!)
If necessary, also replace rotor
The fault indicator lamp goes on Overloading
1.) Motor protection switch (16 A)
triggered (pump motor)
Switch on protection switch and for
1: Clean mixing tube, and increase
water
- by pump blockage with dry
material
supply when starting machine
- due to insufficient water
quantity
2.) Motor protection switch (2,5 A)
triggered (star wheel motor)
For 2: Clean hopper and star wheel
- Clogged material in hopper
Red lamp "change the direction
of rotation goes on - Power connecting to long 5 x 4 mm²
- Power cable too thin 50 m cable
- 1 phase missing
- Voltage too low
- Wrong direction of rotation Change direction of rotation of pole
reversing switch