Manual for Induction Motors and Generators
22 -
Installation and Alignment
3BFP 000 050 R0101 REV E
3.3.4.2 Assembly
The following instructions must be taken into account when assembling the coupling half.
•
Follow the general instructions of the coupling supplier
•
The weight of the coupling half can be considerable. A suitable lifting gear may be needed
•
Clean the shaft extension of its anti-corrosive coating, and check the measurements of the
extension and the coupling against the provided drawings. Ensure also that the keyways in
the coupling and the shaft extension are clean and free from burrs
•
Coat the shaft extension and hub bore with a thin layer of oil as to facilitate the mounting
of the coupling half. Never coat mating surfaces with molybdenum disulphide (Molykote)
or similar products
•
The coupling must be covered with a touch guard.
NOTE: In order not to damage the bearings,
no additional forces should be applied to the
bearings when assembling the coupling half.
3.3.5 Belt drive
Machines designed for belt drives are always equipped with cylindrical roller bearing in the D-
end. If a belt drive is used, make sure that the driving and the driven pulleys are correctly
aligned.
NOTE: Suitability of the shaft end and the bearings for the belt drive must be always checked
before use. Do not exceed the radial force specified in the order definitions.
3.3.6 Drain plugs
The machines are equipped with drain plugs in the lowest part of the machine. The drain plug is
constructed in such a way that it keeps the dust outside the machine and lets the condensation
water to drain out. The drain plugs should always be open, i.e. half of the plug is inside and half
of the plug is outside. The drain plug is opened by pulling it out from the frame. In AMI
machines the drain plug (M12 screw) is opened 6 - 12 mm (0.2” - 0.5”).
***Following paragraph for mounting type: Horizontal
For horizontal machines, two drain plugs are fitted at both ends of the machine.
***Following paragraph for mounting type: Vertical
For vertical machines, two drain plugs are fitted to the lower end shield.
The main terminal box has one drain plug at the lowest part of the box which has to be closed
during operation.
