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NOTE: The machine is not suitable for belt, chain or gear connection unless it is
3.1.6 Assembly of the coupling half
This chapter concerns mainly DAE designed generators, only. For DBE design
different coupling solutions e.g. belt drive or coupling other than coupling discs is
not allowed.
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
Balancing of coupling
The rotor is dynamically balanced with half key as standard. The way of
balancing is stamped to the shaft end:
•
H=half-key.
•
F=full key.
The coupling half must be balanced respectively.
3.1.7 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
3.2 Installation and alignment
The machine is normally transported and lifted as one ready assembled unit onto
the foundation, see Annex 1. Main Dimension Drawing.
NOTE: The customer is responsible for machine installation (unless mentioned
specifically designed for such use. The same applies for high axial thrust
applications.
applied to the bearings when assembling the coupling half.
always checked before use. Do not exceed the radial force specified in
the order definitions.
otherwise in the contract). ABB cannot be hold responsible for damage
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