Elmo Rietschle G-BH9 - Manual (Page 24)

Shut-Down and Longer Standstills
610.44434.40.000 24 / 32 © Gardner Denver Deutschland GmbH
8 Shut-Down and Longer Standstills
8.1 Preparing for shut-down or longer
standstill
 WARNING
Improper use of the unit can result in serious
or even fatal injuries!
Have you read the safety precautions in Chapter
1, "Safety", Pg. 3 f.?
Otherwise you many not carry out any work with
or on the pump-motor unit!
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.
CAUTION
Danger of bearing damage!
Avoid mechanical shocks during operation and
shut-down.
Prior to shut-down or longer standstill, proceed
as follows:
 Switch off the pump-motor unit.
 Close shut-off device in inlet and pressure line
if installed.
 Disconnect pump-motor unit from power
supply.
 Release pressure.
When doing so, open pipes/hoses slowly and
carefully so that the vacuum or gauge
pressure in the pump-motor unit can be
released.
 Remove pipes/hoses.
 Provide mufflers on inlet and discharge side
with sealing plugs.
8.2 Storage
conditions
To prevent standstill damage during storage, the
environment must provide the following
conditions:
 dry,
 dust-free,
 low-vibration
(V
eff
≤ 2.8 mm/s [0.11"/sec]).
 Ambient temperature:
min. -30°C [-22°F]
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 rolling bearings after longer
storage:
The new pump-motor unit may at first be stored
following delivery. If the time from deliver 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. In this case be sure to
inquire with the Service Department. In particular,
exact information with regard to the procedure
and grease type are required.
 WARNING
Improper use of the 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 itself when
the related maintenance manual on hand!
Inquire with the Service Department!
Commissioning after longer standstill:
Before recommissioning after a longer standstill,
measure the insulation resistance of the drive
motor. With values ≤ 1 kΩ per volt of nominal
voltage, the winding is too dry.