Maber MB500/120-SP, Instruction And Maintenance Manual

Page: 46 / 52

46
Position of the rack and pinion hoist during loading and unloading operations
When the transport
drum is rotated as in the
picture near here the
opening of the safety
landing gate is possible
and the opening of the
unloading ramp, too.
The opening of the gate
automatically blocks the
rotation of the transport
drum.
Closing
the safety
landing gate is a
compulsory operation to
rotate
the transport
drum.
Remember to put the
unblocking lever inside
the blocking gate box for
the
rotation of the
transport drum. This
operation makes spring
the mechanism which
releases the hook of the
safety landing gate (see
section E-E) and makes
the
opening gate
possible.
When the safety landing gate is open the
mobile lever, connected to the drum with a
chain, blocks the rotation of the transport drum.
Anyway if someone tries to rotate the transport
drum when the safety landing gate is open (see
the picture above) it will be blocked by the inner
lever of the blocking box that works as a stop.
Only when the safety landing gate is closed it is
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