User`s manual
33
LOADING
HOOK
(7) Made of high grade steel, it is equipped with a safety device (spring catch) against accidental unhooking of the load [RES. 4.1.2.6.
e – Enclosure I Machinery Directive] and revolves on a thrust bearing.
HOOK
TACKLE
(single fall hoists) (7)
It connects the chain to the revolving hook. Made of steel, it is equipped with a thermally treated increased section pin for chain
locking
BLOCK
(double fall hoists) (7)
Aluminum cast, completely closed, it is equipped with a thermally treated high grade rotating sprocket, with chain housing hollows.
MOTOR
REDUCER
WITH
SELF-BRAKING
MOTOR:
(9) transmits motion to the trolley’s gear wheels for the E Type Electric version [RES. 4.1.2.6. c – Enclosure I Machinery Directive].
TRAVELING
TROLLEYS
(10-11) used for horizontal traveling of the load, they are manufactured in three different versions: thrust manual hoist; mechanical
chain hoist; electric hoist. They slide along the girder’s lower flange and can be adjusted according to the width of the same girder’s
flange; made of steel plate, they are equipped with anti-fall and anti-derailment brackets [RES. 4.1.2.2. Enclosure I Machinery
Directive] and shock absorbing buffers. Trolleys are equipped with mechanically worked pressed steel wheels which revolve on
permanent lubrication ball bearings.
CHAIN
CONTAINER
(13) Required for containing the hanging length of chain, it is available in several sizes according to the hook’s run; it is made of
shock-resistant plastic and it equipped with suspensions which confer it functional mobility.
ELECTRIC
CONTROLS
AC
48
V
–
50HZ
LOW
VOLTAGE
ELECTRIC
EQUIPMENT,
(14) including: the transformer for low voltage supply of control circuits, the main line contactor, the contactors for controlling the
hoists motors and the electric trolley (if any), the transformer’s protection fuses and the terminal box for the connection of auxiliary and
power circuits. Components are contained in a IP 55 protection grade watertight case, made of shock-resistant thermoplastic. The
control equipment is located on the motor side of the hoist.
TRAVEL
LIMIT
SWITCHES
(15): they limit the horizontal travel of the electric trolley along the girder
[RES. 4.1.2.6. a – Enclosure I Machinery Directive].
HOIST
ELECTRIC
LIMIT
SWITCH
(17) Supplied as standard, they limit the hook’s hoisting and lowering path [RES. 4.1.2.6. a – Enclosure I Machinery Directive].
Consisting of two precision micro-switches which work according to the “slow positive opening” principle and act upon the auxiliary
circuit of the control device of the hoisting motor.
STOPS
They are fitted on the descending length of the chain and on the load-bearing one on single fall hoists, they act
as regulators and limiters for the hook’s path [RES. 4.1.2.6. a – Enclosure I Machinery Directive]; they are made of pressed steel and
are equipped with a shock-absorbing insert.
SUSPENSION
Available in the execution with hook or in the 90° v ersion for longitudinal hoists.
TOW
ARM:
the tow arm is available for all types of trolley. It connects the trolley to the feeding line. It is easily adjustable in all directions and
represents a fundamental element for towing the feeding line so as to avoid tearing of the cables.