Mixing pump G 4 X smart Overview - Operation and service
Work on troubleshooting
2021-08-12 49
Fault Possible cause Solution Rectification by
Mortar flow
ceases (air
bubbles)
Bad mixture in mixing tube Add more water Operator
Material is clumped and narrows
the mixing tube inlet
Add more water or clean agitator or
replace
Operator
Material in mixing tube has
become wet
Empty mixing tube, dry it and start
again
Operator
During
operation
water rises in
the mixing
tube
Backpressure in mortar hose
higher than pump pressure
Retighten or replace stator Service engineer
Rotor or stator worn Replace rotor or stator Service engineer
Hose is blocked by mortar that is
too thick (high pressure by low
water factor)
Remove blockage, increase water
factor
Service engineer
Red pilot
lamp, fault
lights up
Overload due to the pump getting
blocked with dry material
Run the machine in backward mode,
otherwise remove pump and clean it
Service engineer
Overload due to low water volume Increase water feed on start up Operator
Motor protection switch pump
motor triggered
Reactivate protection switch Service engineer
Overload due to compacted
material in hopper
Clean hopper
Reactivate protection switch
Service engineer
41.6 Signs for hose blockages:
Implementation by operator:
Blockages can occur in the pressure flange or in the mortar
hoses.
Indications are:
rapidly increasing pressure head,
blocking of pump,
running difficulties or blockage of the pump motor,
expansion and turning of the mortar hose,
no material discharge at the hose end.
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