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About this Manual
These operating instructions apply to AC motors of the following series:
K8.R and B8.R.
Besides the general assembly instructions, these guidelines are to be followed for the installation, start-up and main-
tenance of explosion-protected AC motors with a degree of protection of "pressure-resistant encapsulation" marked:
(II..), EEx de II. T or EEx d II. T.
Any independent manufacturing equipment mounted on or built into the motors like brakes, rotary encoders or fre-
quency converters, etc. have their own operating instructions which are to be duly followed.
Target readership
This manual is addressed to the specialists in charge of installing, operating and servicing the motors. Besides con-
ventional technical training they must possess knowledge in the field of explosion protection.
Abbreviations and symbols
This manual uses abbreviations and symbols having the following meanings:
>
indicates handling instructions
draws your attention to interesting tips and additional information
Please note!
warns against minor damages to property.
Caution!
warns against major damages to property and minor injuries.
Warning!
warns against major damages to property and major injuries or death.
1 Explosion-protected
Motors
Intended use
The motors are to be operated only according to the data specified on the rating plate. According to the relevant
marking on the rating plate, the motors are fit for use in areas subject to explosion hazards.
The motors are fit to be built into another machine. Start-up is forbidden until the conformity of the final product with
Directive 89/392/EEC as amended by 98/37/EC is determined.
Liability and Warranty Guarantee
We cannot be held liable for any damage or malfunctions resulting from assembly errors, the failure to follow these
operating instructions or improper repairs.Original spare parts are manufactured and tested specifically for these
motors.
We recommend that you obtain any spare parts and accessories only from the manufacturer.
We hereby specify that any spare parts and accessories not supplied by the manufacturer require our approval.
Under any circumstances the mounting and use of third-party products can negatively affect the motor's original
structural properties and impair the safety for persons, the motor or other real values (explosion protection).
The manufacturer shall not be liable for any damages resulting from the use of spare parts or accessories not au-
thorized by the manufacturer.Any unauthorized conversions and alterations to the motor shall not be approved for
safety reasons and the manufacturer cannot be held liable for any resulting damages.