Operating and maintenance instructions Gear unit
Additional information for ATEX use

Valid for:

Gear unit, marked with:
II2G Ex h IIB T4 Gb or II2G Ex h IIC T4 Gb, used in zone 1, 2
II2D Ex h IIIC T120°C Db, used in zone 21, 22
II3G Ex h IIC T4 Gc, used in zone 2
II3D Ex h IIIC T120°C Dc, used in zone 22

The installation and maintenance instructions and the additional information for ATEX use must be strictly followed to ensure the explosion protection according to ATEX and the validity of the declaration of conformity

In addition, all current standards and national regulations for the use of the product in hazardous areas have to be noted.

Startup

• operating temperature range: -20°C … +40°C
• No explosive media may be present in the environment during installation
• secure adequate ventilation of the motor and gear unit, supply no additional heat to the input and output shaft of the gear unit
• Provide protection against incursions of parts in the output elements - adequate covers
• Prevent dust between rotating and stationary parts, avoid static electricity
• For gear units without motor: consider equipotential bonding
• The permissible axial- and radial forces for the input shaft and output shaft of the gear unit must not be exceeded
• For gear units without motor
• Motors may only be used if they do not exceed the permissible levels, according to nameplate:
  P1max - Maximum input power
  T1max - Permissible input torque
  n1max - Maximum input speed
• Perform test run at rated load
  measure oil temperature and surface temperature at input of geabox / between gearbox and motor
  The oil temperature must not exceed 60K for mineral oil or 80K for synthetic oil above the ambient temperature and not more than 100°C
  The surface temperature should not exceed 70K above the ambient temperature
• Charging or sparking on the paint layer due to friction or moving parts must be prevented

Inspection and maintenance

• For repairs and maintenance work, the standard EN60079-19 and the standards for explosion protection have to be observed.
• Do not open the terminal box under explosive atmosphere when the engine is hot or is under tension
  Open the terminal box not earlier than 30 minutes after shutdown
• Clean drive regularly.
  If there are dust layers larger than 5mm or dust clouds, the permissible temperatures according to DIN EN60079-14 paragraph 5.6.3. must be observed.
• Use only original spare parts
• The products are delivered from the factory with a coating that meets the requirements against electrostatic charging according to DIN60079-0.
  When repainting, the requirements against electrostatic charging according to DIN60079-0 must be observed.