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Chapter 10 Cleaning & decommissioning
10.3 Decommissioning
Running the machine until it is empty and switching
it off
1. Stop the filling of the material hopper in time.
2. Empty the material hopper, the pump hopper and the
mortar hoses.
3. Clean the machine.
4. Switch off the mixing pump. To do this, turn the main
switch on the left side of the switching cabinet to the
horizontal position “0 = OFF”.
5. Pull out the mains plug.
6. Interrupt the external water supply by closing the water
valve.
7. Open the water drainage tap on the water measuring
system under the pressure reducer to release the pres-
sure (approx. 2.5 bar).
8. Dismantle the metering shaft, the pump shaft, the
pump unit (rotor/stator) and the mixing tube with the
mixing shaft.
!
DANGER
Rotating mixing, metering and pump
shafts. Danger of death due to being pulled into the
machine and crushed.
When the motors are running, the metering shaft ro-
tates in the material hopper, the mixing shaft in the
mixing tube and the pump shaft in the pump hopper.
• Do not reach into the rotating mixing or pump shaft.
• Do not bring any objects into the rotating mixing or
pump shaft.
1. Before working on the mixing or pump shaft, disconnect
the external power supply (main switch off). Only loosen
the screw of the protective grids when the machine is
switched off.
2. Pull out the mains plug.
3. Secure the machine against unexpectedly being switched
back on.
!
DANGER
Pressurised conveyor hoses.
Risk of injury and risk of property damage due to es-
caping and/or flying material, and/or bursting con-
veyor hoses.
• Before disconnecting the conveyor hoses, make sure that
the hoses are depressurised. To do so, check the pressure
indicator on the mortar pressure gauge. The pressure in-
dicator must display 0 bar!
• Before opening the hose coupling, let the small silo ino-
COMB Cabrio run in reverse to release any pressure! To
do this, press the “Reverse pump” pushbutton until the
pressure display on the mortar pressure gauge shows 0
bar.
Pushbutton “Reverse pump”
• Use only conveyor hoses which are permissible with an
operating pressure of 40 bar and a burst pressure of 120
bar, and are in a technically perfect condition (e.g. are
without any cracks or other external damage!).
