PFT G 4 X - Change the Direction of Rotation of the Mixing Pump Motor in Case of Blockages in the Hose; Blockage Does Not Dislodge

Mixing pump G 4 X smart Overview - Operation and service
Removal of blockages in the hose
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42.1 Change the direction of rotation of the mixing pump motor in case of
blockages in the hose
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Fig. 72: Change direction of rotation
1. Turn main switch (1) to position "0".
2. Push the metal bracket (2) in the opposite direction.
3. Turn main switch (1) to position "I".
4. The yellow pilot lamp (3) for changing the direction of rotation
lights up.
5. Turn the selector switch (4) of the booster pump to position “0”.
6. Press the green push button (5) control voltage “ON”.
7. Move the push button (6) backwards until the pressure at the
mortar pressure gauge has dropped to “0 bar”.
8. Turn main switch (1) to position "0".
42.2 Blockage does not dislodge
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Fig. 73: Mortar pressure gauge
DANGER!
Overpressure on the machine!
When opening machine parts they can open in an
uncontrolled manner and injure the operator.

Open the mortar hoses only when the pressure at the
mortar pressure gauge (1) has dropped to "0 bar".
1. Slightly loosen both nuts (2) at the tie rod so that the remaining
pressure can escape completely.
2. As soon as the pressure is down to “0 bar”, tighten the nuts (2)
again.
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Fig. 74: Loosen coupling
NOTE!
Clean mortar hoses immediately
1. Cover coupling connections with tear-proof film.
2. Loosen cam leaver (1) and hose connections.
3. Dislodge the blockage by tapping or shaking at the place where
the blockage is located.
4. If required, insert a rinsing hose into the mortar hose and flush
out the material (PFT rinsing hose art. no. 00113856).
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