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Pump motor does not start - Pump motor defective Correct faults
- Connection cable defective
- Plug or integrated socket
- defective
- Motor protection switch defective or
triggered
Stoppage after a short time
- Dirt collection filter dirty Clean or replace filters and
- Pressure reducer filter dirty
- Hose connection or water pipe increase water connection size
- too small
- Water vessel suction pipe too weak
or too long
Machine does not switch off - Air pressure safety switch - Adjust air pressure switch
- Air wrongly adjusted or - Replace air hose or check
compressor
- defective
- Air hose defective
- Air tap on spray gun
- defective
- Compressor provides too
- little air
- Air pipe on compressor
- not connected
Mortar flow stops - Poor mixture in mixing tube Add more water
- Mixing shaft defective
If this does not help, clean
- Motor hauling bracket or replace mixing shaft
- defective
- Input hopper to mixing Dry mixing tube inlet and
- tube wet; material clumped star again
- mixing tube inlet restricted!
Mortar flow "thick-thin" - Too little water If there is too little water
- Water safety switch wrongly adjusted
or defective
increase water quantity by 10 % for
approx. 1/2 minute
- Mixing shaft defective; no original PFT
mixing shaft
then return slowly to normal setting
- Pressure reducing valve wrongly
adjusted or defective
or tighten or replace pump parts
- Stator worn, defective Rotor worn or
not tight enough
- Clamp defective (oval)
- Pressure flange almost blocked
- Mortar hose inner wall defective Correct other faults
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