PFT G4 - Page 59

Mixing Pump PFT G4
Troubleshooting
2007-09-05 59
Problem Possible cause Corrective action to be
corrected by
Clamp clip defective (oval) Replace clamp clip Service
technician
Inner wall of the mortar hose is
defective
Replace mortar hose Operator
Rotor is too deep in the pressure
flange
Replace pressure flange Service
technician
Mortar flow
"thick-thin"
Replacement parts are not original
PFT replacement parts
Use original PFT replacement parts Service
technician
Back pressure in the mortar hose
is greater than the pump pressure
Increase tension or replace the
stator
Service
technician
Rotor or stator are worn Replace rotor or stator Service
technician
During
operation
water rises in
the mixing
pipe
Hose is blocked by mortar that is
too thick (higher pressure due to a
low water factor)
Eliminate the hose blocks, increase
the water factor
Service
technician
Overload due to pump stalled by
dry material
Run the machine in reverse, or
remove and clean the pump
Service
technician
Overload due to insufficient water
quantity
Increase water feed at start up Operator
Motor protection switch "Pump
motor" (16 A) has tripped
Switch on the protection switch
again
Service
technician
Motor protection switch "Cellular
wheel" has tripped
Switch on the protection switch
again
Service
technician
Indicator light
red, fault is
illuminated
Overload due to compressed
material in the hopper
Clean hopper and cellular wheel Service
technician
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