Shutdown
E:\shares\Baprod\BA\subtec_m\general\us\shutdown.fm
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8
Shutdown
This chapter provides an overview of the various ways to shut down the machine.
Temporary shutdown
For this type of shutdown, the machine remains installed and is not cut off from the electricity sup-
ply. For temporary shutdown, the machine must remain completely submerged so that it is pro-
tected from frost and ice. Make sure the operating room and the pumped fluid cannot be covered
by ice.
This ensures that the machine is always ready for operation. During longer shutdown periods, carry
out a regular (monthly to quarterly) function run for a period of 5 minutes.
Final shutdown / storage
Switch off the system, disconnect the machine from the electricity supply and dismantle and store
it. Note the following information concerning storage:
- Clean the machine.
- Store it in a clean, dry place, protect the machine against frost.
- Place it down vertically onto a firm foundation and secure it against falling.
- Seal the intake and discharge ports of pumps with suitable material (such as foil).
- Support the electric connecting lead on the cable lead-in to help avoid a permanent deforma-
tion.
- Protect the ends of the electric power cable from moisture.
- Protect the machine from direct sunshine as a preventive measure against brittleness in elas-
tomer parts and the propeller and casing coating.
- When storing the machine in a garage please remember: Radiation and gases which occur
during electric welding destroy the elastomers of the seals.
- During lengthy periods of storage, regularly (for example every six months) turn the impeller
or propeller by hand. This prevents indentations in the bearings and stops the rotor from rust-
ing up.
- See also “Transport and Storage”.
Restarting after an ex-
tended period of storage
Before restarting the machine, clean it of dust and oil deposits. Then carry out the necessary main-
tenance actions (see “Maintenance”). Check that the mechanical shaft seal is in good order and
working properly.
Caution
Only carry out a function run under the proper conditions of oper-
ation and use (see “Product Description”). Never run the machine
dry. This can result in irreparable damage!
Beware of hot parts!
When removing the machine, be careful of the temperature of the
housing components. These can heat up to well above 40°C. Let the
machine cool down to ambient temperature before you touch it.
Caution
For machines filled with drinking water, drain out the water and
let the machine dry out if it is not operated for more than
4 weeks, or if there is a risk of freezing.
