Mixing pump RITMO XL 400V Overview – Operation
Troubleshooting jobs
42
2019-12-11
Fault
Possible cause
Troubleshooting
Rectified by
Mortar flow
"thick-thin"
Too little water
Set water volume up by 10% for
approx 1/2 minute, and then turn
back slowly
Operator
Water safety switch is not in
correct position or is defective
Adjust or replace water pressure
safety switch
Service
mechanic
Mixing coil is defective, not
original PFT mixing coil
Replace mixing coil with original
PFT mixing coil
Operator
Pressure reducer is not in
correct position or is defective
Adjust or replace pressure
reducer
Service
mechanic
Rotor is worn out or defective
Replace rotor
Service
mechanic
Stator worn out or tensioning
clip is loosely tensioned
Replace stator or tighten
tensioning clip
Service
mechanic
Tensioning clip is defective
(oval)
Replace tensioning clip
Service
mechanic
Inner wall of mortar hose is
defective
Replace mortar hose
Operator
Rotor is too deep in the
pressure flange
Replace pressure flange
Service
mechanic
Not original PFT spare parts
Use original PFT spare parts
Service
mechanic
Water
ascends in
mixing tube
during
operation
Backlog pressure in mortar hose
higher than pump pressure
Tighten or replace stator
Service
mechanic
Rotor or stator is worn out
Replace rotor or stator
Service
mechanic
Hose clogging due to thick
mortar (high pressure due to low
water factor)
Remove hose blockage, increase
water factor
Service
mechanic
Red control
lamp (fault)
lights up
Overload due to stoppage of
pump with dry material
Let the machine run in the reverse
direction, else dismantle pump
and clean
Service
mechanic
Overload due to low water
volume
Increase water supply during
start
Operator
Motor circuit breaker of pump
motor (16A) tripped
Reactivate circuit breaker
Service
mechanic
Overload due to thickened
material in hopper
Clean hopper
Reactivate circuit breaker
Service
mechanic