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2.8.2
Coupling guard
2.8.3
Intermediate chamber
2.8.4
Optional monitoring devices
26
The rotating shafts between the drive and functional unit are con-
nected by a coupling, and must be secured by a fixed safety guard
against reaching in and blockages caused by falling parts.
Börger GmbH delivers units with couplings and drives including a
screw-fixed coupling guard as standard.
This coupling guard may not be removed, and must always be
reinstalled carefully following removal due to maintenance.
If your Börger machine is delivered without an installed drive, you
must attach the supplied coupling guard (or another suitable cou-
pling guard) after the drive is installed.
This also applies to the V-belt/chain guards on overhead mounted
drive assemblies and to the coupling lanterns on units with
hydraulic drives and coupling lanterns.
The intermediate chamber separates the hydraulic pump part from
the timing gear. It is used for monitoring the integrity of the
mechanical seals on rotary lobe pumps with single-acting mechan-
ical seals.
Overflowing caused by penetrating pumped medium indicates that
the mechanical seals must be replaced immediately in order to
prevent the pumped medium from entering the gear unit.
The vent hole in the intermediate chamber must not be sealed or
plugged.
When the vent hole is closed tightly or has become blocked,
emerging pumped medium from the pump chamber cannot escape
through the intermediate chamber and will penetrate the gear unit
if the mechanical seal is defective. This could damage the gear
unit.
If the Börger machine is equipped with additional monitoring
devices, then the corresponding safety instructions can be found in
the manufacturer's operating manual in the appendix.
If your Börger machine was supplied with such monitoring devices,
you must ensure that these devices function correctly.
www.boerger.de / www.boerger.com
BA-Classic FL_en-US, 03.05.2018
Safety
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