Starting And Operating Instructions; Operation; Service And Maintenance - Pumpex K 107 series Inbetriebnahme- Und Betriebsanleitung

When changing the cable, check the following to avoid leakage:
– that the rubber bush and washers in the cable entry are suitable for the
cable. See the list of spare parts.
– that the cable sheath is not damaged. When fitting a cable which has
earlier been used in the pump, always fit a new rubber bush and cut
away a piece of the cable so that it will end up in a new place on the
cable.
Before starting:
Check the direction of rotation of the
pump (see figure). At the instant of
starting, the pump will jerk anti-
clockwise when viewed from above.
WARNING!
Never insert your hand or any other
object into the inlet opening on the
underside of the pump casing when
the pump is connected to the power supply.
Before inspecting the pump casing, check
that the pump has been isolated from the
power supply and cannot be energized.

Service and maintenance

CAUTION!
Before any work is started, check that the pump is
isolated from the power supply and cannot be energized.
CAUTION!
Before undertaking any service work, make sure that the
pump is thoroughly clean, and bear in mind the
importance of observing good personal hygiene.
Follow your local safety instructions.
CAUTION!
Two overhead cranes must be used to lay the pump or
motor section on its side safely. When the pump or
motor section has been laid on its side, always secure it
with wedges from both sides to prevent it from rolling away.
Inspection
Pump section Inspection
Cables Check that the sheath is not damaged.
Check that the cables are not kinked or nipped.
Visible parts Check that all parts are in good condition, and that bolts
and nuts are securely tightened.
Impeller Check that the impeller is not worn to such an extent that the
pump performance is affected.
Shaft seal Check that the oil is clean and is not mixed with water.
See under "Changing the oil".
Leakage If the pump is installed dry and has a cooling system in which
the upper sealing compartment is left open - Check that no
water has leaked out.
Hoses, pipes Check that the equipment does not leak
and valves or is otherwise damaged.
8

Operation

Starting jerk
NOTE!
For safety reasons, the earth conductor in the pump should be
longer than the phase conductors.
If the motor cable is accidentally wrenched off, the earth
conductor should be the last to break away from its terminal.
This applies to both ends of the cable.
The power supply should be fused with slow-blow fuses.
CAUTION!
The starting jerk may be violent. Don't hold the pump
handle when checking the direction of rotation. Make sure
that the pump is firmly supported and cannot rotate.
If the direction of rotation is incorrect, transpose two phases. See under
the heading "Electrical connections".
CAUTION!
Under certain operating conditions, the pump tempera-
ture may be high.
CAUTION!
For official approval to be valid for EX approved pumps,
the following must be observed:
- the pump must be installed and used in accordance with
the Starting and operating instructions
- service and repair work must be carried out by Pumpex or a
service mechanic authorized by Pumpex
- genuine Pumpex spares must always be used
Failure to observe the above may be dangerous to life.
Regular inspection and preventive maintenance will ensure more reliable
operation. The pump should be inspected every six months, or more often
if the operating conditions are difficult. The cable should be checked more
frequently.
For a complete overhaul of the pump, please get in touch with an
authorized Pumpex workshop or your Pumpex
Action in the event of a fault
Fit a new cable.
Correct the fault
Replace worn parts. Tighten
any loose bolts and nuts.
Fit a new impeller.
In the event of slight leakage,
change the oil.
In the event of major leakage,
fit a new seal.
If the amount of water that has
leaked out is unacceptable, get
in touch with an authorized
PUMPEX workshop.
Adjust or replace
defective equipment.