PFT RITMO M - Page 50

Mixing pump RITMO L / RITMO M Overview - Operation
Work on troubleshooting
50 2016-02-17
Fault Possible cause Solution Rectification by
Machine
stops after a
short while
Strainer screen contaminated Clean or replace strainer Operator
Strainer sieve of pressure relieve
device contaminated
Clean or replace strainer Operator
Hose connection or water pipe too
small
Increase dimensions of hose
connection or water pipe
Operator
Water suction tube too long or
suction pressure too low
if required, connect additional
pressure booster pump upstream
Service engineer
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
defective
Replace air tap Service engineer
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
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
Agitator defective Replace agitator Operator
Driving dog defective Replace driving dog Service engineer
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) Replace clamping bracket Service engineer
Inner wall of mortar hose defective Replace mortar hose Operator
Rotor too deep in pressure flange Replace pressure flange Service engineer
No original PFT spare parts Use original PFT spare parts Service engineer