P
RODUCT INFORMATION
Emergency lowering
DANGER
Risk of explosion
There is an increased danger of explosion during
emergency lowering. Heat is generated in the en-
gine that cannot be sufficiently dissipated due to
the lack of compressed air supply (see “General
information on explosion protection”).
I
Check for a potentially explosive atmosphere
before and during emergency lowering at the site
of operation.
I
After emergency lowering, the site of operation
must still be checked for a potentially explosive
atmosphere or it must be ensured that the maxi-
mum surface temperature is below the specified
limit values of the respective temperature class.
I
If necessary, stop the process or ensure suffi-
cient monitoring.
I
Continuous use of the emergency lowering
device with an only partially ventilated brake (re-
duced manual force) is to be avoided.
The emergency lowering device is constructed in a
similar way to the emergency brake in accordance
with DIN EN ISO 80079-37, Section 5.11: If this
device is less likely to be used, no further protec-
tive measures are necessary for devices in device
category 2 (devices for use in zone 1/21).
In relation to the built-in emergency lowering de-
vice, this means that
1. the latter may only be used in the emergency
described in the section “Description of the
emergency lowering device” and the hoist
must always have a stable compressed air
supply with a low probability of failure.
2. when using this device, the maximum surface
temperature of the engine can be above the
maximum permissible surface temperature of
the specified temperature class.
Emergency lowering
DANGER
Risk of explosion
There is an increased danger of explosion during
emergency lowering. Heat is generated in the en-
gine that cannot be sufficiently dissipated due to
the lack of compressed air supply (see “General
information on explosion protection”).
I
Check for a potentially explosive atmosphere
before and during emergency lowering at the site
of operation.
I
After emergency lowering, the site of operation
must still be checked for a potentially explosive
atmosphere or it must be ensured that the maxi-
mum surface temperature is below the specified
limit values of the respective temperature class.
I
If necessary, stop the process or ensure suffi-
cient monitoring.
The emergency lowering device is constructed in a
similar way to the emergency brake in accordance
with DIN EN ISO 80079-37, Section 5.11: If this
device is less likely to be used, no further protec-
tive measures are necessary for devices in device
category 2 (devices for use in zone 1/21). In rela-
tion to the built-in emergency lowering device, this
means that
1. the latter may only be used in the emergency
described in the section ”Description of the
emergency lowering device” and the hoist
must always have a stable compressed air
supply with a low probability of failure.
2. when using this device, the maximum surface
temperature of the engine can be above the
maximum permissible surface temperature of
the specified temperature class.
Doc.-No.: VA057988-10-OM-EN-0821-62-1
Page
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