Elmo Rietschle G-BH1e - Manual (Page 41)

© Gardner Denver Deutschland GmbH 41 / 52 610.44521.40.000
Shut-down and longer standstills
7 Shut-down and longer standstills
 WARNING
Improper use of the pump−motor unit can
result in serious or even fatal injuries!
Have you read the chapter "Safety
instructions"? (
 5)
Otherwise you may not carry out any work with
or on the pump−motor unit!
7.1 Preparation
CAUTION
Danger of rusting due to collection of
condensed water in drive motor area!
On drive motors with closed condensed water
openings:
Remove closures occasionally to allow any
water which has collected to drain off.
Prior to shut−down or longer standstill,
proceed as follows:
1 Switch off the pump−motor unit.
2 Close
shut−off device in inlet and pressure
line (if installed).
3 Disconnect pump−motor unit from power
supply.
4 Druckentlastung vornehmen.
Dabei Rohrleitungen / Schläuche langsam
und vorsichtig öffnen, so dass sich der Unter-
bzw. Überdruck im Aggregat abbauen kann.
5 Disconnect inlet line and pressure line.
6 Provide mufflers on inlet and discharge side
with sealing plugs.
7.2 Storage conditions
Keep to the following storage conditions to avoid
damaging the pump-motor unit:
 Dry,
 Dust-free,
 Low-vibration (max. vibration velocity v
eff
= 2,8
mm/s [0,009 ft/s]).
 Ambient temperature: max. 40°C [+104°F].
CAUTION
Danger of overheating due to high
temperature!
When storing in an environment with a
temperature of over 40 °C [104 °F], the winding
may be damaged and the grease change
interval may be shortened.
Lubrication of the rolling bearings after
longer storage
The new pump−motor unit may at first be stored
following delivery.
If the time from delivery to commissioning
exceeds the following periods, the lubrication of
the rolling bearings must be renewed:
 Under advantageous storage conditions (as
specified above):
– 4 years
 Under disadvantageous storage conditions
(e.g. high humidity, salty air, sandy or dusty
air):
– 2 years
In these cases open rolling bearings must be
relubricated and closed rolling bearings must be
completely replaced.
This absolutely requires consultation of the
manufacturer. In particular detailed information
regarding the procedure and the grease type is
required.
 WARNING
Improper use of the pump−motor unit can
result in serious or even fatal injuries!
All maintenance work on the pump−motor unit
must always be performed by the Service
Department!
Maintenance work on the pump−motor unit
may only be conducted by the operator when
the related maintenance manual is on hand!
Inquire with the manufacturer!
Commissioning after longer standstill or
longer storage:
Before re−commissioning after longer standstill
or longer storage, the following works must be
executed:
 Measure the insulation resistance of the
motor. With values ≤ 1 kΩ per volt of rated
voltage, the winding is to dry.
 Form the capacitors of the frequency inverter.
Please contact the manufacturer for this
purpose.