Elmo Rietschle L-BV3 - Manual (Page 24)

Servicing
610.444430.40.000 24 / 32 © Gardner Denver Deutschland GmbH
10 Servicing
 WARNING
Improper use of the machine can result in
serious or even fatal injuries!
Have you read the safety precautions in
Chapter 1, "Safety", Pg. 3 f.?
Otherwise you may not carry out any work with
or on the machine!
 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!
Inquire with the Service Department!
 DANGER
Electrical danger!
Before beginning work on the unit or system,
the following measures must be carried out:
 Deenergize.
 Secure against being switched on again.
 Determine whether deenergized.
 Ground and short-circuit.
 Cover or block off adjacent energized parts.
 DANGER
Electrical danger!
Replace loose connections, singed or burned
cables immediately!
 DANGER
Electrical danger!
Depending on the charging state of the
capacitors, a residual voltage may be present
on the terminals in the terminal box.
After opening the terminal box cover, it must
be ensured that the capacitors are completely
deenergized:
 Measure the voltage at the corresponding
jumpers (see the circuit diagram in the
terminal box).
 Dissipate the residual voltage with suitable
means if necessary.
The capacitors must be completely
deenergized.
 WARNING
Danger due to gauge pressure and vacuum!
Danger due to escaping fluid!
Before beginning work on the unit or system:
 Interrupt supply of operating liquid.
 Bleed lines and vacuum pump/compressor
(depressurize).
 WARNING
Danger from rotating external fan of unit!
It is prohibited to remove the fan guard!
 WARNING
Danger from rotating impeller of unit!
It is prohibited to remove the vacuum
pump/compressor cover and the housing!
 WARNING
Danger of burns and scalding from hot
surfaces of the pump-motor unit and from
hot fluids!
Do not touch during operation!
Allow to cool after shut-down!
10.1 Maintenance
The pump-motor unit is largely maintenance-
free.
If water containing lime is used as the
operating liquid, the operating liquid must be
softened or the pump-motor unit must be
decalcified at regular intervals.
Refer to the following table: