Before Start-Up; Checking The Pump Body For Foreign Material; Testing The Pump; Operationalizing The Pump - Apv W+ Bedienungsanleitung

381434 ISS S 01.98 381326 ISS Q 11.95
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Before start-up

Before starting the pump, dismantle and clean the suction pipe. Any
foreign material in the pump should be removed.

3.1 Checking the pump body for foreign material

Remove the pump body as described below:
1. Disconnect the power supply.
2. Remove the pump body (pos 1) by undoing the clamp ring
(pos 2) and carefully pulling off the pump body
3. Turn the impeller (pos 4) to ensure that there is no foreign material
behind it.
4. If there is any foreign material in the pump, remove it.
5. When the pump body is clean and free of foreign material, reas
semble the pump.
Mount the pump body as described below:
6. Press the pump body in over the O-ring (pos 3) and fit the
clamp ring (pos 2).
7. Install suction and discharge pipes. Check that the pipe unions
have been tightened properly and that pipe supports have been
fitted.
To make the pump body easier to fit, we recommend that you give the
O-ring a thin layer of non-corrosive grease approved for use in the food
industry.

3.2 Testing the pump

To check that the pump is working satisfactorily, pour water into the
pump and start it for a moment. Check the direction of rotation. Listen
for any unusual noises.
In pumps with water-flushed or steam-flushed shaft seals, the flushing
chamber by the shaft seal must be filled with water/steam.
Never allow the pump to run without liquid, as this will ruin the shaft
seal.
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Operationalizing the pump

Check the following before starting the pump:
- that the shaft guard has been fitted properly
- that there is free access for liquid
- that the valve on the discharge side is closed
The valve on the discharge side is closed during start-up to prevent
the motor from overloading, but should be opened again as soon as
the pump has been started.

4.1 Flushing water/steam/condensate etc.

In pumps with a flushed shaft seal, check that the supply of flushing
medium is open and that the flow of the medium is adequate
(approx. 15-30 l/hour).