Elmo Rietschle L-BV3 - Manual (Page 20)

Operation
© Gardner Denver Deutschland GmbH 20 / 32 610.444430.40.000
8 Operation
 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
Danger due to gauge pressure and vacuum!
Danger due to escaping fluid!
Danger due to rotating parts!
The pump-motor unit may only be put into
operation when the following conditions are
met:
 Fan guard and vacuum pump/compressor
cover and housing are mounted.
 The lines to the discharge connection, inlet
connection and operating-liquid port are
attached.
 The lines and connections have been
tested for strength and leaks.
CAUTION
If the unit is run dry, the mechanical seal will
be destroyed in a matter of seconds!
DO NOT switch on as long as the unit is not
filled with operating liquid!
 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!
NOTICE
Maximum permissible quantity of water
entrained via the inlet connection:
See Fig. 9, Pg. 19.
CAUTION
The feeding in of overheated steam at the inlet
connection of the pump-motor unit while it is
not rotating has the following effect:
 Operating liquid is pressed out of the pump-
motor unit.
 Considerable thermal loading of the pump-
motor unit.
The pump-motor unit may be damaged!
Before feeding in overheated steam at the inlet
connection, switch on the pump-motor unit for
approx. 10 s to ensure sufficient supply with
operating liquid. The operating liquid cools the
pump-motor unit.
8.1 Self-priming
operation
Follow the instructions contained in
Chapter 7.2, "Self-priming operation", Pg. 17
for this operating mode.
8.2
Operation with operating-liquid feed
Start-up
For non-automatic operation (Fig. 6, Pg. 19):
 Open the stop valve (Item 4) manually.
The operating liquid is fed in.
 Switch on the unit.
For automatic operation (Fig. 7, Pg. 19):
 Switch on the unit.
 The solenoid valve (Item 4) opens
and the operating liquid is fed in.
Shut down:
For non-automatic operation (Fig. 6, Pg. 19):
 Switch off the pump-motor unit.
 Close the stop valve (Item 4) manually.
Feeding of the operating liquid is cut off.
 The following applies for the control valve
(Item 3) for setting the operating-liquid flow
rate:
In case of an interruption in operation, the
valve setting (i.e. the valve position or the
open valve cross-section) is not changed.