HEK MSHF, User Manual

Page: 65 / 84

OPERATION
7-5 MSHF • 7295-026A
1. Open the trap door in the platform.
2. Remove the toolbox.
3. The motors have a lever which
permits the brake to be released.
4. When this lever is operated, the
platform will begin to descend. For a
two-mast construction, the brakes
must be released by two persons
simultaneously so a clear system
must exist between them.
The speed of descent will be limited
by the centrifugal brake.
After a maximum descent of 5
metres / 16.4 ft, stop the platform
for 2 minutes in order to avoid
the centrifugal brakes becoming
overheated, which will result in
their working less efficiently.
5. For a two-mast construction, take the
opportunity during the stop situation
the set the platform level with the aid
of the brake release mechanisms. If
the platform becomes excessively
inclined, the autolevel safety system
will come into operation. In this event,
external help will be required.
Fig.7-5 Drive unit brake release