En
gl
is
h (
G
B)
18
4.2 Startup
Proceed as follows:
1. Lock the main switch in position 0/Off.
2. Check the oil level in the oil chamber.
3. Check whether the monitoring units, if used, are
operating satisfactorily.
4. Make sure that the pump is submerged in the
liquid.
5. Open the isolating valves, if fitted.
6. Check the setting of the level switches.
7. Unlock the main switch, start the pump and
check the pump operation for abnormal noise or
vibrations.
When started, the motor will jerk the pump in the
opposite direction of the direction of rotation.
8. After startup, establish the actual pump duty
point as accurately as possible so that you can
check whether the operating conditions are as
desired.
5. Handling and storing the product
5.1 Handling the product
When handling the product, observe the following
points:
•
Check that the lifting equipment is okay and see
the lifting instructions.
See section
•
Move the pump only with a fork-lift or a lifting
crane.
•
Observe the maximum cable bending radius, see
11.2.1 Bending radius of cables
5.2 Storing the product
For long periods of storage, that is six months or
longer, the pump must be protected against moisture
and heat. If the pump is stored for more than six
months, make a full new installation check before
startup. See also section
.
5.2.1 Storing in the pit (dry or wet)
The pump is frost-proof as long as it is operating or
submerged in the liquid. If the pit has been pumped
dry, and the pump has been exposed to the
atmosphere, allow the pump to stand submerged in
the liquid for a short period before starting it up. This
eliminates the possibility of a frozen propeller or
impeller. Never use an open flame to thaw out the
pump.
If the pump is submerged in liquid, operate it for 30
seconds every month.
5.2.2 Storing in dry conditions
During storage, pay special attention to the condition
of the shaft seals and the cable entries. Clean the
pump at regular intervals and spray it with corrosion-
inhibiting oil. Always store the pump under a cover in
a protected area not exposed to direct sunlight.
WARNING
Automatic startup
Death or serious personal injury
- Before manual starting or changeover to
automatic control, make sure that no
persons are working on or near the
pump.
Do not start the pump unless you have
checked the direction of rotation.
Always operate the pump in accordance
with established routines with scheduled
checks of pump monitoring equipment and
accessories (valves, etc.).
Make sure that the pump and equipment
settings cannot be changed by
unauthorised persons.
In case of abnormal noise or vibrations
from the pump, or other pump or liquid
supply failures, stop the pump
immediately. Do not attempt to restart the
pump until the cause of the fault has been
found and the fault corrected.
Leave the cable end protectors on the
power and sensor cables until you start
making the electrical connection.
Whether insulated or not, the free cable
ends must never be exposed to moisture
or water.
If the pump is stored dry, rotate the
propeller or impeller by hand at least every
two months to prevent the shaft seals from
seizing up.
If the propeller or impeller cannot be
turned by hand, contact an authorised
service workshop.
