MECHANICAL INSTALLATION
During installation
Please follow the safety instructions when installing.
1. The motor may only be installed when the information on the nameplate corresponds with the mains voltage
respectively the output voltage of the frequency inverter. The motor is not damaged (no damage by transport or
storage).
2. The motor must only be installed in stated version on a at, shock free and torsion tight surface.
3. The key mounted in the secondary output shaft must be secured before the electric motor is mounted,
connected and started.
4. Align motor and working machine thoroughly, so that the output shafts will not be loaded inadmissibly (please
note allowable radial and axial forces).
5. Make sure no shock or eccentricity occurs on shaft ends.
6. Balance parts which are drawn on shaft later with half key (motor shafts are balanced with half key).
7. Use the correct diameter mounting bolts, which must be carefully tightened and secured to prevent loosening
during operation as a result of vibration and to avoid damage to the motor.
8. If the motor is installed vertically, measures must be taken to prevent small particles from falling through the fan
cap, either by the way the installation is constructed or by installation of a canopy. This must not impede the ow
of cooling air through the motor.
9. Pulleys or couplings may only be secured in place by means of the tapped hole in the face side of the shaft. If
hammer blows are used to install pulleys or couplings on the shaft, the bearings may be irreparably damaged.
Mount only carefully, dynamically balanced pulleys or couplings on the shaft end. Machines that are connected
to the motor by a coupling must be aligned in accordance with the instructions provided by the coupling
manufacturer.
Installation in humid environments
1. Terminal box should possibly be xed so that the cable entries are positioned downwards.
2. Seal cable entries correctly.
3. Clean sealing surfaces of terminal box and terminal box cover well before reassembly.
4. Do not use damaged seals for cable connections and blind plugs. Replace embrittled seals.
5. STARK stainless-steel motors are suitable for use in extreme (washdown) environments such as those found in
the food and pharmaceutical industries. STARK stainless-steel motors are not intended and are not intrinsically
suitable for underwater use. Installation in open air, in direct sunlight will need to be carefully considered to avoid
overheating.
6. Existing condensation drain holes are sealed and may only be opened when necessary. The condensation drain
holes must generally be kept sealed in order to maintain the specied IP protection class. In order to counteract
the eects of suction (condensation formation), each motor can be tted with a stainless-steel breather valve.
This valve is mounted on the B-bearing shield and ensures that pressure inside the motor is equal to the pressure
outside the motor housing. This minimises the likelihood of condensate formation. The valve is tted on request
and is only necessary in specic applications. Please consult STARK for the use of the stainless-steel breather
valve.
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