PFT PFT G4, Operating Instructions Manual, Page: 20 / 68

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5. Shortly press the water flow button on the side of control box. The mixing
chamber should contain enough water so that the top of the rotor is covered.
(Watch for loss of water - the rotor pump may be defective!).
6. Control the water level.
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The power circuit is interrupted by removing the 7 pole connecting coupling of the
mixing pump motor (safety measure). To restart machine press green button "ON".
7. The star wheel switch must be on "Manual (hand") (1).
The star wheel can be switched to the positions:
- MANUAL
- ZERO
- AUTOMATIC
MANUAL
The star wheel always runs when the machine is connected and switched on. In this
position, material can be added to the mixing chamber when the pump is not running.
We call that pre-wetting! For heavy materials and materials bonded with dispersion
agent, it is advisable to pre-wet, and in the process to open the lower water
connection in the mixing chamber so that the excess water can run off. (The power
circuit has to be interrupted by removing the dummy plug, otherwise the pump motor
runs synchronously with the star wheel).
WARNING!
The D 6-3 pump, must always be prewetted!
ZERO
The star wheel us switched off, and so the supply of material to the mixing zone is
interrupted (when cleaning the mixing zone with mixing tube cleaner
or adjusting
rotor/stator pump).