rulmeca 80LS Manual De Instalación Y Mantenimiento página 6

EN
The designer must select appropriate mounting bolts to resist belt forces and/or the weight of the pulley depending
on the mounting position of the pulley.
All types of mounting brackets must be fully supported by and fastened to the conveyor frame in such a way that the
shafts ends do not deform. Shaft ends must always be fully supported by the brackets.
Where solid mounting brackets type AL and ALO are used, the brackets have to be assembled close to the shoulder
of the round shaft. This is to ensure that the drum motor has no axial clearance.
The AL type of bracket is fitted with one or two keys depending on load.
Keys must be securely fixed and checked regularly and locked if necessary.
Mounting brackets should be fitted in such a way that they are in contact with the shoulder of each shaft. This will:
1. Eliminate motorized pulley axial play between mounting brackets.
2. Keep shaft deflection to a minimum.
In noise-sensitive areas, the designer should use heavier gauge support structure and appropriate vibration isolating
material, as necessary.
When Rulmeca motorized pulley mounting brackets are NOT used, it is essential that:
1. The mounting equipment supports at least 80% of the shaft flats.
2. It has to be assembled without any clearance between the support and the shoulder of the shaft.
3. The clearance between the shaft flats and the support should be less than 0.2mm (torsion play).
A motorized pulley with frequent reversible operations or many start/stops should be mounted with No axial
clearance between the shaft flat and the brackets
Failing to follow these precautions could cause pulley and/or mounting bracket damage and
voids product warranty.
d) Electrical Installation:
Always use licensed electrician to install the unit. All electrical installation and wiring shall
Conform to the national code of the National Electrical Standards. Turn the electrical power off at
the electrical panel board (circuit breaker or fuse box) and lock or tag the panel board door to
prevent someone from turning on power while you are working on the unit, failure to do so could
result in serious electrical shock, burns or possible death.
According to the European Council Directives related to machinery, the equipment manufacturer (OEM) has to secure
that the motorized pulley is NOT put into operation before it is
o Correctly installed,
o Correctly connected to the power supply,
o Correctly protected against rotating parts,
A specialist must perform the electrical connection of the motorized pulley in accordance with
electrical regulations. If in doubt, contact Rulmeca.
A wiring diagram is always supplied with the motorized pulley. Always refer to the connection instructions and
ensure that the motor power and control circuits are properly connected.
The wiring diagram is inserted in the accompanying booklet and into the terminal box.As standard,
Rulmeca Motorized Pulleys are delivered with clockwise rotation when viewed from the terminal box end of the
Motorized Pulley.
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Earth connection