Elmo Rietschle L-BV3 - Manual (Page 22)

Shut-Down and Longer Standstills
610.444430.40.000 22 / 32 © Gardner Denver Deutschland GmbH
9 Shut-Down and Longer
Standstills
 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!
9.1 Draining
 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.
 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).
 Switch off the pump-motor unit.
 The above safety precautions apply when
working on the unit or system.
 Provide suitable catch containers below the
vacuum pump/compressor cover.
 Open the sealing plug of the drain hole
(Fig. 3, Pg. 14, Item 5).
 Allow the liquid to drain out.
 Colse the sealing plug again,
tightening torque for G⅛" = 4.5 Nm ± 10 %
[3.32 ft lbs ± 10 %].
OR
 Switch off the pump-motor unit.
 The above safety precautions apply when
working on the unit or system.
 Have a suitable catch container ready.
 Disconnect the hose connections on the
inlet connection, discharge connection and
operating liquid opening.
 Remov ethe mounting screws on the feet of
the pump-motor unit.
 Place the pump-motor unit on the vacuum
pump/compressor cover and tilt it several
times over the connection.
 Remount the mounting screws on the feet.
 Reattach
the hoses.
9.2
Preparing for longer standstill
Before a longer standstill (from approx.
4 weeks) or when there is danger of frost,
proceed as follows:
 Drain pump-motor unit as described in
Chapter 9.1, "Draining", Pg. 22.
 Remove the pipe/hose from the intake or
discharge connection.
 Pour ¼ l [0.066 gal (US); 0.055 gal (UK)] of
preservative (rust protection oil, e.g.
Mobilarma 247 form Mobil Oil)
into the open intake or discharge
connection.
 Close the intake and discharge connection,
as well as the operating-liquid port and
remount the disconnected pipes/hoses.
 Guide a screwdriver through the central
opening in the fan guard up to the shaft end
on the external fan side (see Fig. 10,
Pg. 23).
 Turn the shaft by hand using the
screwdriver.
 Remove the screwdriver again.
 You have two options for the standstill:
Either the pump-motor unit remains
connected in the system,
or the unit is removed for storage.