Mixing pump G 4 X FU 230/400V / Part 2 Overview, operation and service
Description
Figure 20: Selector switch pressure
booster pump
Selector switch pressure booster pump
The pressure booster pump can be operated in three different oper-
ating modes.
Switch position "0":
Booster pump is switched off (e.g. if the water pressure is continu-
ously at 2.5 bar).
Switch position "AUTO" (right):
The booster pump runs synchronously with the mixing pump.
Switch position "HAND" (left):
The booster pump runs continuously (e.g. for cleaning the hoses).
4.8
Voltage 230V/400V changing
1
Figure 21: Change voltage
Voltage change-over switch (1) 230V, 1 phase or 400V, 3 phase is
located in the control cabinet
Delivery state position of voltage selector to 400V
Change voltage:
1. Turn the main switch to position "0".
2. Open the control cabinet door.
3. Switch the voltage switch (1) to 230V or 400V.
4. Close the control cabinet door.
5. Turn the main reversing switch to position "I".
6. Press the green pushbutton control voltage "ON".
4.9
Pressure booster pump
The PFT pressure booster pump is used predominantly as a high-
pressure pump for intermediate connection at the mortar mixer when
the water pressure is too low. It can also be used as a primer pump for
drawing liquids from containers, for emptying small tanks and ponds,
for pumping water out of cellars and for irrigation.
The water supply is automatically ensured from a water tank by the
PFT pressure booster pump for the constant water supply to the PFT
machine engineering.
A flow pressure of at least 2.5 bar with the machine in operation on
the construction side is guaranteed by means of suction from the
water reservoir.
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