PFT G4 - Measures after successful maintenance

Mixing Pump PFT G4
Maintenance
2007-09-05 69
8. Switch off the machine.
Now the pump should seal and retain the pressure in the
mortar hose. However, if the augur is improperly positioned
in the jacket then the water will flow back into the container
with a noticeable gurgling sound. If this happens, switch on
the machine again.
You may have to switch the machine on and off several
times to find the position in which the pump seals.
9. Check the back pressure on the manometer (Fig. 73/3) of the
PFT pressure tester. The back pressure should be
maintained at approximately 14 bar (203 psi) for the first
several minutes after switching off.
10. Open the the drain cock on the PFT pressure tester.
11. Remove the test equipment.
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8.5 Measures after successful maintenance
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WARNING
Injury hazard posed by incomplete maintenance work!
Improperly executed maintenance and repair work may result
in property damage, serious injury or even death.
Maintenance and repair work shall only be executed as
described herein. When in doubt, always contact the
manufacturer! Maintenance and repair work are not complete
until the machine is being checked for the following:
1. Check all previously loosened threaded connections for firm
fit.
2. Ensure that all previously removed protective devices and
covers have been properly installed.
3. Ensure that all tools, materials, and other equipment has been
removed from the work area.
4. Clean the work area and remove any substances that may
have escaped, such as liquids, processing material, or similar
items.
5. Ensure that all safety devices are again functioning properly!
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