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10.8 Maintenance and repair work
Before maintenance and repair work may be carried out, the machine must
be stopped and the conveyor machine must be depressurized.
1. Switch off the motor using the "Start/stop motor" button.
2. Vent the mixing and delivery vessel via the vessel vent and check the
vessel pressure at the pressure gauge (see Section 7.7.5).
3. Close the upper and lower air by means of the corresponding levers
(see Section 4.6).
4. Check that the delivery hoses are depressurized.
5. Switch the control unit off using the "Control unit on" button.
To prevent the machine from being switched on again unexpectedly and
unintentionally, secure the machine against being switched on again during
maintenance work on the machine.
1. Disconnect the battery.
2. Secure the machine against unauthorized restarting.
3. Place a sign indicating maintenance work.
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