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Operating Instructions – Explosion-Proof AC Motors DR63/eDR63, DVE250/280
4
Motor installation notes
Mechanical Installation
The drying process is finished when the minimum insulation resistance has been ex-
ceeded.
In the terminal box, make sure that:
• The inside is clean and dry
• The connections and fixing parts are free from corrosion
• The gasket and sealing surfaces are in good condition
• The cable glands are tight, otherwise clean or replace them
4.3 Motor installation notes
• Motor shaft ends must be thoroughly cleaned of anti-corrosion agents, contamination
or similar (use a commercially available solvent). Do not allow the solvent to pene-
trate the bearings or shaft seals – this could damage the material.
• Mount the gearmotor only on a level, vibration-free and torsionally rigid support struc-
ture.
• Make sure the customer's counter-bearing is unobstructed and can move freely.
• Align the motor and the driven machine carefully in order to prevent the output shaft
from being exposed to unacceptable strain. Observe the permitted overhung and
axial forces.
• Do not jolt or hammer the shaft end.
CAUTION
Sharp edges due to open keyway.
Minor injuries.
• Insert key in keyway.
• Pull protective sleeve over shaft.
CAUTION
Improper mounting may result in damage to the motor.
Possible damage to property
• Observe the following notes.
NOTICE
The mounting position for installation must correspond with the specifications on the
nameplate.
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