Mixing pump G 4 X smart Overview - Operation and service
Work on troubleshooting
48 2021-08-12
Fault Possible cause Solution Rectification by
Pump motor
does not start
Pump motor defective Exchange pump motor Service engineer
Connection cable defective
Plug or inbuilt socket defective Change plug or inbuilt socket Service engineer
Motor protection switch defective
or triggered
Change motor protection switch or
reset
Service engineer
Machine
stops after a
short while
Strainer screen contaminated
Clean or replace strainer
Strainer sieve of pressure relieve
di t itd
Clean or replace strainer
Hose connection or water pipe too
small
Increase dimensions of hose
connection or water pipe
Operator
Booster pump not switched on Switch on booster pump Operator
Machine does
not switch off
Air pressure safety switch set
incorrectly or defective
Adjust or replace air pressure safety
switch
Service engineer
Air pressure hose defective or
seals defective
Replace air pressure hose, replace
seals or check compressor
Service engineer
Air tap at the spraying gun
d f ti
Power provided by compressor is
too low.
Check compressor Service engineer
Air duct is not connected to the
compressor
Connect air duct to the compressor Operator
Mortar flow
"thick-thin"
Too little water Increase the water quantity by 10%
for approx. ½ minute and then turn
down slowly
Operator
Water safety switch set incorrectly
or defective
Adjust or replace water safety switch Service engineer
Agitator defective; no original PFT
agitator
Replace agitator with original PFT
agitator
Operator
Pressure reducer set incorrectly or
defective
Adjust or replace pressure reducer Service engineer
Rotor worn or defective Replace rotor Service engineer
Stator worn or clamping bracket
tightened too little
Replace stator or re-tighten
clamping bracket
Service engineer
Clamping bracket defective (oval)
Inner wall of mortar hose defective Replace mortar hose Operator
Rotor too deep in pressure flange
No original PFT spare parts
Use original PFT spare parts
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