BA series pumps
1401 Pump – general
6.3
1. Start the pump motor/engine.
Note
When cold-starting a diesel engine driven pump, it must initially be run at low speed.
Once the diesel engine is at operating temperature, the speed can be increased to the desired rpm.
This ensures that the pipes will be filled gradually and smoothly.
2. In the case of a bypass line, close the shut-off valve in the bypass line once the pump has built up
pressure.
3. If the pump or pump unit is used for pumping bentonite, for example, it is also necessary to check
whether the supply and return for the flush connections and barrier fluid are open.
4. Check the suction of the liquid (vacuum).
WARNING
If vibration occurs during starting, stop the pump immediately and eliminate the
cause before starting again.
5. Check the speed of the pump.
6. Make sure the vacuum pump is not drawing in water via the hose connected to the float chamber.
7. Check the pressure pipe and the shaft seal for leaks.
8. Check the pump for proper operation.
DANGER
Never allow the pump to run long while the pressure shut-off valve is closed. Pumps
driven by a motor/engine with a power in excess of 11 kW (14.7 hp) may never be
run with a closed pressure shut-off valve.Otherwise there is a danger of explosion.
Heating of the liquid beyond design limits can cause damage to the pump.
6.4 Monitoring during operation
1. During operation check the pump regularly for correct functioning, smooth and vibration-free
running, abnormal noises and leaks.
2. Prevent situations in which pump runs dry for more than five minutes.
3. Under optimum conditions, mechanical shaft seals permit very little or barely visible (vaporous)
leakage to pass.
4. The maximum permissible ambient temperature is 40 °C.The temperature of the bearings may not
exceed 85 °C.
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