Bartec Varnost 4KTC 250, Руководство пользователя

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INSTALLATIONGUIDELINES
FOR 4KTC SQUIRREL- CAGE MOTORS
15
Regular inspections and control measurements carried out by qualified personel are preffered to reduce
possible damages and standstills.
Each deviation from the nominal values (such as higher load current, increased temperatures, vibrations,
unusual noise or smell, reactions of protective devices) is to be understood as signal of possible damage! To
prevent consequential damages on machines or people, please inform the person responsible immediately
on the appearance of such deviations.
8. REPAIRS
ELECTRIC MOTORS FOR EXPLOSIVE AREAS MAY BE REPAIRED EXCLUSIVELY BY THE
MANUFACTURER OR OUR AUTHORIZED REPRESENTATIVE.
THOSE WHO DISASSEMBLE AND REPAIR THE EX MACHINES MUST BE HIGHLY QUALIFIED AND
DISPOSE OF ADDITIONAL KNOWLEDGE CONCERNING EXPLOSION PROTECTION.
IMPORTANT:
Repaire according of flameproof gaps and joints according to table 2 of EN 60079-1: 2014 is not
allowed! Please conntact producer!
Special attention should be paid that no damaged has occured during disassembly on flameproof gaps and
joints.
Before assembly of electromotor all flameproof gaps and joints needs to be cleaned and greased with
grease type FOR PD-2 (Setral MI PD LL/2A) or Renolit RHF-1 Fuchs.
If it becomes clear during repairs that the »explosion-proof enclosure« no longer corresponds to the
requirements on the explosion protection and specified in the certification, all markings for explosion
protection must be removed from this motor.
9. SCREW TIGHTENING TORQUE
Table 1: Tightening torque: Ex enclosure. Tightening torques for screws of the strength class 8.8 and A4-70.
Thread Tightening
torque (Nm)
Thread Tightening
torque (Nm)
M4 2.3 M12 66
M5 4.6 M14 105
M6 7.9 M16 160
M8 19 M20 330
M10 38 M24 560
Table 2.: Tightening torque: for electrical connections
Thread Tightening
torque (Nm)
Thread Tightening
torque (Nm)
M4 1.2 M10 10
M5 2 M12 15.5
M6 3 M16 30
M8 6 M20 52
10. RECOMENDED TORQUES FOR BARTEC-VARNOST STANDARD Exe CABLE GLANDS (Nm)
Table 3.: Recommended tightening torque and terminal sizes for cable glands WISKA, typ ESKE-.. … …..