PFT G 5 c FU, Operating Manual

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PFT G 5 c FU 230V Operating Manual Issued: 09.2007
Knauf PFT GmbH & Co. KG
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Mortar pump D6-2L
The mixer pump PFT G 5 c FU is standardly equipped with the pump system D6-2L.
The rotor and stator are subject to wear and must be checked regularly .
WARNING!
The use of a mortar pressure gauge is absolutely imperative according to the safety
regulations of the Builder’s Guild.
PFT mortar pressure gauges monitor the mortar consistency efficiently and easily.
Some benefits of the mortar pressure gauge:
Exact regulation of correct mortar consistency
Constant monitoring of the correct conveying pressure
Early detection of clogging or overloading of pump motor
Establishment of zero pressure
Significant contribution to the safety of the operating personnel
Durability of the pump components
PFT pump components
New pump components with a conveying hose of 10 m should attain a conveying
pressure of approx. 15 bar and maintain a back pressure of approx. 2/3, before and
after the first spraying. We recommend using the PFT pressure tester with coupling
and outlet tap to monitor the backpressure
(item no. 20 21 68 10).
During installation/removal of the mortar pump, the following must be observed:
- the main switch must be switched off during assembly.
Furthermore, observe that:
A new rotor and new stator need to be run in; actual pressure values can only be
determined after the first spraying cycle.
Pump components which neither attain the required conveying pressure nor maintain
the required backpressure are worn out and must be replaced.
Checking the conveying pressure and backpressure
Connect the 10 m conveying hose
Connect the pressure tester to the outlet tap at the hose end
Open valve
Switch on machine and let water run until water emerges from the outlet tap (let hose
bleed)
Close valve
Let pump run against pressure until there is no more increase in pressure
Switch off the machine
If the required pressure is no longer attained, the maintenance-free pump must be
replaced
Check the backpressure
A backpressure of approx. 2/3 of the conveying pressure of the screw pump should
now be maintained in the hose