Use Of Chains; Preparation Work - Xylem LOWARA Sekamatik 12MK7 Manuel D'installation, D'exploitation Et De Maintenance

Float switch for wire rope coupling
Pumps without float switch can be provided later with an original float switch for wire rope coupling. The electrical
connection is carried out by intercoupling the float switch between the power socket and mains plug of the pumps.
Box plug
pump
If the float cable is installed later, fix it on the pump according to the desired switch distance and the switch level
on the pump, the ascending pipe or another fixed installed point. Under no circumstances the float with the cable
must be thrown into the medium, since correct switch is only possible with a rotational movement of the float
around the mounting point of the cable. Possible consequences in the event of non-compliance are flooding (the
pump does not start)/destruction of the pump due to dry run (the pump does not switch off).
Important: After each change of the mounting of the float a correct function of the float switch must be checked
with a test run.

5.3. Use of chains

Chains are used to lower/lift the pump into/out of the mechanical room. They are not provided for securing a
floating pump. For use according the instructions follow these steps:

Fix one end of the chain at the provided eyelet/the handle of the pump.

Fix the other end on the lifting device.

Tighten the chain and lift the pump slowly and in a controlled manner.

Swing the pump subsequently over the mechanical room and lower it carefully.

Lower the pump as far as the operation point and ensure a steady position of the pump.

Remove the chain from the lifting device and safeguard this on the chain guard, which is at the upper
edge of the mechanical room. This ensures that the chain cannot fall into the mechanical room and
does not pose danger to anyone.
5.4. Commissioning
This chapter contains all important instructions for operating personnel for safe commissioning and operation of
the machinery. The following must be complied with and checked:

Type of installation

Operation mode

Minimal submersion in water / maximum submersion depth
After a longer downtime these points must also be checked and detected defaults must be repaired!
The operation and maintenance manual must always be kept with the machinery, or in a dedicated place
where it is accessible for the entire operating personnel.
The following points must be taken into account to avoid personal and material damage when troubleshooting
machinery failures:
The commissioning of the machinery must only be carried out by qualified and trained personnel in
compliance with the safety regulations.

All personnel that is working on the machinery must have received, read and understood the
operating instructions.

Activate all safety equipment and emergency switch-offs before commissioning.

Electrotechnical and mechanical settings must only be carried out by specialists.

This machinery is only suitable for the use under the indicated operating conditions.

5.5. Preparation work

The machinery was constructed and fitted according to the latest technology, so that it works for a long time and
reliably under normal operating conditions. This requires however that you comply with all requirements and
information. Small oil leakages of the floating ring seals on delivery are not problematic, but they must be
removed before lowering/immersion into the medium.
Please check the following points:

Cable run - no loops, slightly tightened

Check temperature of the medium and submersion depth - see machinery data sheet

If a tube is used for pressure, this must be rinsed with clear water so that no deposits lead to
obstruction.

The pump pit must be cleaned for wet installation
14
Switch for wire
Power socket
rope coupling