20
The extension and the rotation are exceptions; in this case the aluminium blocks make the
connection.
Balancing valves are flanged on all cylinders; these work both as block valves, limiting the
descending speed and as anti-shock valves (20; 21; 23; 27; 24; 31). Some of these valves also
include the electrovalve for the emergency descend (see 2.4.1) (20; 21; 23). On the contrary, the
valve of the basket levelling cylinder is double (31).
The manufacturer sets these valves and they must not be
altered (tampered with)
. An action on
these valves for example releasing the setting screw, can increase the descend speed and decrease
the setting of the anti-shock valve, with a consequent big danger for the operator.
EXTEN
SION
ROTATION
Summary of Contents for GOLD LIFT 1470
Page 1: ...Technical Course GOLD LIFT 1470 ...
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