Page 54
EN
Chapter 11 Maintenance
Symptom
Potential cause
Check / solution
Personnel
qualification
Material
con-
sistency
too thick
The amount of
water supplied is too
low; fluctuations in
water pressure.
• Increase the flow volume by adjusting it on the needle valve
of the water fitting.
• Check the water pressure (min. 2.5 bar) on the pressure gauge
of the water fitting.
Machine
operator
too thin
The amount of
water supplied is too
high.
• Reduce the flow volume by adjusting it on the needle valve of
the water fitting.
Machine
operator
Con-
sistency
fluctua-
tions
The material supply
or water quantity is
fluctuating.
• Switch off the machine and pull out the mains plug.
• Check the mixing shaft and the pump shaft for adhering ma-
terial and clean and dry them before reinserting.
• Check the water inlet screen; clean the water screen if nec-
essary.
• Check the water pressure of the supply line; regulate the wa-
ter pressure if necessary.
• Check the setting on the pressure reducer; regulate the set-
ting if necessary.
• Check the metering shaft, the mixing shaft, the pump shaft
and the pump unit (rotor/stator) for wear.
Machine
operator
