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IOM Manual VF-W_ATEX_gb - Translation of original instructions in Italian - Rev 03_0 - 30/09/16
Legibility of the nameplate
The nameplate and the information thereon must be legible at all times. The nameplate should therefore
be cleaned from time to time.
Always quote the identifying data on the nameplate in all correspondence with the manufacturer,
when ordering spare parts, requesting information or arranging technical assistance.
3.2 DESCRIPTION OF THE EQUIPMENT
This
gearbox has been designed and made for integration in an assembly of rigidly interconnected parts
or mechanisms conceived to perform a specic application in which power may be provided by an electric
motor.
Depending on the requirements of the application, the gearbox can be supplied in a variety of versions and
congurations.
The gearbox is designed to satisfy specic requirements in the mechanical, chemical, agricultural and food
industries, etc.
The manufacturer offers a range of accessories and optional variants to make gearboxes as versatile as
possible. For further technical information and descriptions, refer to the relevant catalogue.
The user is responsible for using the products recommended for the installation and maintenance of the
gearbox in an appropriate manner and in accordance with the manufacturer’s instructions.
SAFETY SPECIFICATIONS FOR ATEX-COMPLIANT GEARBOXES
• Use only synthetic lubricants (oil and grease).
• Use only uoroelastomer seals.
• Apply thread lock to all external bolts and plugs.
• Fit vent plugs with anti-intrusion valves.
• Fit oil seals with dust trap to the output shaft.
• Ensure that all components and products can resist temperatures above the maximum rated operating
temperature.
• Ensure that there are no metal parts in sliding contact outside the gearbox.
• Ensure that plastic parts cannot accumulate an electrostatic charge, or are shielded if they can.
• Install irreversible heat sensors.
• Installations in zones 21 and 22 require the user to draft and implement a regular cleaning schedule for
all surfaces and recesses to avoid the build-up of dust.
• To prevent dust building up in difcult to access areas, sealing devices, mounting anges and external
threads must be provided at all mobile couplings.
3.3 CONFORMITY
All gearboxes or
gearmotors (when supplied with motor) are designed as state of the art devices in
compliance with the provisions of applicable Essential Health and Safety Requirements.
All gearmotor motors conform to the provisions of the Low Voltage Directive 2006/95/EC and the
Electromagnetic Compatibility Directive 2004/108/EC.
If specied for use in potentially explosive atmospheres, gearboxes must also be designed and constructed
to conform with the Essential Health and Safety Requirements (EHSR) of Annex II of the ATEX Directive
2014/34/EU and must conform to the following classication:
●
Equipment group: II.
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Category: Gas 2G – Dust 2D.
●
Zone: Gas 1 – Dust 21.
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Temperature class: T4 for 2G and 135°C for 2D.
●
Some types of gearbox, as specied in this catalogue, are exceptions to this rule and are marked
temperature class T3 for 2G or 160°C for 2D.