Mönninghoff ServoFlex 328 Series, Инструкция по эксплуатации и сборке

Страница: 38 / 50

ServoFlex Type 328.XX
Using in potentially explosive areas
38
2013-09-12
Mönninghoff
8 Using in potentially explosive areas
8.1 Construction of the clutch size
In explosion-protected areas, the safety when selecting the nomi-
nal torques must be at least a factor of 2. The permissible dis-
placement values are reduced by a factor of 0.5.
8.2 Control events
During visual checking, check the diaphragm assemblies for
cracks, deformation and loosening cylinder-head screws. Loos-
ened cylinder screws must be tightened again according to the
specified tightening torque TA. Damaged cylinder-head screws and
diaphragm assemblies must be replaced
immediately (use original
spare parts only!).
ATTENTION
Damage to the clutch from inaccurately aligned
shaft ends!
The function and service life of the clutch depends
significantly on tension-free installation of the dia-
phragm assemblies.
► To avoid hazards in Ex areas, align the shaft
ends accurately.
8.3 Startup
Before startup, all screw connections must be checked for manda-
tory tightening torque.
8.4 Contact protection
The materials for contact protection must be selected according to
EN 134631-1. This means in particular that light metals may not be
used for the mining industry (device group I). The gap between the
cover and rotating parts must be at least 5 mm. In the case of
longer spacers, particularly clutch shafts, possible deflection of the
shaft as a result of the rotation during measurement of the mini-
mum gap must be considered.