
Document: U99_001
page 14 of 24
5.6.2
Electrical
If the pump aggregate works outdoors (hazard by lightning) or in case of hazards by electricity charge during operation, an
additional earth lug can be installed upon request of customer.
Please, contact manufacturer.
5.7 connection to power supply
Connection of machine to electrical grid must be done by technical qualified staff, under consideration
of the valid DIN- / VDE- rules and, if necessary, of national valid rules as well as of safety-norms of
the European Community.
Consider
2. Safety!
Consider operation instruction for motor
Consider stated sense of rotation
Consider star-delta switch-over (activate time relays)
Before checking sense of rotation, it is absolutely necessary to fill the pump and the pipeline up with medium, or,
if medium is hazardous for environment and/or health, fill up with water.
Minding
5.8. Check after installation!
5.8 Check after installation
It is necessary to check the sense of rotation of the pump after installation and connection to power supply.
Consider that, before checking sense of rotation, pump and pipeline must be filled up with medium,
or, if medium is hazardous for environment and/or health, filled up with water. Dry running of pump
can destroy important parts of pump.
Viewing from motor to pump, the rotation is clockwise. If special pumps are involved or gears are used, it can be necessary
to operate the pump with anti-clockwise rotation.
Pay attention to arrow at volute casing and, if available, instructions in order confirmation and delivery note, when checking
direction of rotation.
Hazards by rotating parts
Never hold hands or objects in the pump!
Clean pump, reservoirs, pipeline and connections from dirt and foreign objects.
Observe
8: Interruptions
, if sense of rotation is wrong!
6.
Starting-up and shut-down
6.1 Details for initial starting
The corresponding operation manuals of other necessary parts of plant and all safety notes must be considered.
6.2 Preparing for operation
6.2.1
Bearing applications
Regarding lifetime lubricated bearing applications, a continued lubrication is not necessary.
When using bearing appliances with a regreasing device, ensure that the bearings are always sufficiently lubricated
before commissioning and before a re-start of the machine. Make sure, that the bearings are not „over-greased“!