The Danfoss unit incorporates controlled
acceleration and deceleration with the
original electromagnetic brake used
as a holding brake. The drive is through
a Cardan shaft to a 4 stage vertical
gearbox coupled to the fixed sheave
shaft by a double engagement gear coupling.
main driving sheave has been fitted
with a 2600 diameter disk upon which
two disk brakes operate. One brake
prevents uncontrolled rollback while
the other acts as an emergency brake
and also an overspeed brake actuated
by a sheave spoke counter.
overspeed is monitored physically
by spoke countering and also by over
voltage detection. The chairlift also
has a 15kw 4 pole AC motor standby
drive through triple vee-Belts to
the cardan staff, and a 42 kva stand
by diesel powered generator to produce
415 volt 3 phase power in event of
loss of mains power.
of the eight (8) pylons have been
replaced by new updated design towers
with access ladders each with 'Ladsaf'
safety ropes and maintenance platforms
incorporating 2 tonne capacity lifting
beams. Each pylon has a set of loudspeakers
for passenger communication purposes.