Turbosol Beton Master, Operation And Maintenance Manual

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USE AND OPERATION
7
561270 - IS19/07 - EN
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7.6 CLEANING THE MACHINE AFTER A WORK SESSION
The following operations should be carried out only by specifically trained personnel. In particular, before
breaking a joint make sure there is no residual pressure inside the piping and that no one is standing
nearby. This operation is potentially dangerous and should always be performed with caution and by
qualified personnel only.
For safety reasons, no one should be allowed to stand close to the hoses during cleaning operations.
When pumping is finished stop the mixer, the pumping unit and the electric grid vibrator.
- Before disconnecting the pipes. Carry out 4-8 pumpings in reverse to depressurize the piping, especially the sections near the
front delivery flange.
- Disconnect the pipes from the front delivery flange.
- Open the hopper discharge chute (FIG. 37-REF. 1) to discharge the remaining slurry and then wash down the inside of the
hopper with water.
- Introduce the water hose into the delivery conduit (FIG. 37-REF. 2) for about 15-20 centimetres, start pumping in reverse and
draw the water out of the S-valve. Continue until you see only clear water coming out of the hopper.
1
2
FIG. 37
- Stop pumping and close the discharge chute.
- Let the diesel engine idle for 2-3 minutes, and stop the engine.
- Make sure no residues of concrete remain inside the hopper, the S-valve and the front delivery flange.
- Lubricate the hopper walls and the S-valve with oil or other lubricants. This will reduce the chances of deposits forming inside
the hopper after the next work session.
- We recommend covering the hopper with a piece of material to prevent foreign matter from falling inside.
The machine can be equipped with a high-pressure water-jet cleaner (optional).
Use the high-pressure cleaner as follows:
- Connect the water supply hose to the coupling on the machine. The water mains should be able to supply at least 10 l/min.
If you are drawing water from a container, make sure that:
• the water is clean
• the drawing point is at least 50 cm above the coupling (FIG. 38-REF. 1)
• the pump has been primed beforehand
- Connect the nozzle together with its delivery hose to the coupling (FIG. 38-REF. 2).
- Switch on the water pump by lever on the control panel. The pressure gauge (FIG. 36-REF. 6) shows the pressure in the
water-jet cleaner (i.e., 100-120 bar).
- Make sure the mixer is switched off when using the water pump.
- Proceed to wash.