2.1.2.7. Electricity
Before starting maintenance activities on the gear unit, it is necessary to disconnect the drive from the
electric grid.
The electric switch must be locked so that electric supply to the drive is impossible.
Earthing the gear unit as an independent element is highly recommended.
The gear unit must never be part of an earthing circuit of other electric machines.
Leaks of electric current can damage the gears and the bearings of the gear unit compromising the reliability and
the good performance of the gear unit.
2.1.2.8. Noice and vibrations
The drive group and its components cause vibrations and noise.
As limited as its emissions may be, it might be necessary, in conformity to the national or local directives, to use
envelopes, separating walls and vibration (shock) absorbers to reduce the emission values of noise and vibration
to a level lower than the values mentioned in the directives.
If the above mentioned directives can not be fulfilled, all personnel working nearby the drive groups must get the
necessary protective equipment and use it to reduce the noise and vibration nuisance to an acceptable level.
2.1.2.9. The gear unit or drive as component of a machine
The gear unit or the drive is a machine component.
Always refer to the service manual of the machine to follow the safety and installation instructions
which belong to the machine.
2.1.2.10. Maintenance
- Lighting:
Before starting maintenance activities on the gear unit, it is necessary to ensure sufficient lighting of the drive
group to work in fully safe conditions.
- Maintenance during the warranty period:
• Maintenance activities like:
- dis-assembly of the gear unit and its parts,
- assembly of the gear unit and its parts,
- replacement of parts by spare parts,
will be done by qualified personnel that is authorized by Hansen Industrial Transmissions nv.
• The maintenance which is limited to:
- the checking of the good performance of the instruments of operation and control,
- the control of cleanliness of the installation,
- the oil draining and oil filling of the gear unit, regreasing of the bearings and labyrinth seals,
- the checking of the drive group alignment,
- the checking for wear of the components of the drive group,
- the maintenance of the lubrication system,
will be carried out according to the description and the directives mentioned in this service manual.
The maintenance shall be done by personnel qualified in matters of industrial mechanical and - where
applicable -electrical equipment.
- Maintenance outside the warranty period:
The maintenance shall be done by personnel qualified in matters of industrial mechanical and - where applicable
- electrical equipment.
The disassembly and the assembly of a gear unit and its parts require a qualification and a particular
knowledge. It is strongly recommended to entrust this task to qualified personnel authorized by Hansen Industrial
Transmissions nv.
Original parts of Hansen Industrial Transmissions nv should be used to replace the existing parts.
ENGLISH
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