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3.1.2 Installation requirement
Because of the manufacture tolerance and cumulate errors existing in mechanical parts, clearance
may exist between the motor feet plane and the foundation support surface.
When install motors, the clearance size must be measured carefully by feeler gauge. For
clearance which >0.05mm, shim with proper thickness should be inserted. The size of shim is
according to the actual value of clearance.
Insert a shim with proper thickness
3.1.3 Lifting eyes are screwed in place and must be tightened. If the motor is installed vertically
with the DE shaft facing downwards, a protective canopy is recommended to cover the fan
cowling. This canopy is necessary to prevent the ingress of water and foreign objects that may
inhibit proper fan operation.
3.1.4 If the DE shaft is facing upwards, a protective canopy and / or suitable protective measures
are recommended to be taken to prevent liquids from entering the motor windings via the shaft.
3.2 Terminal box
Terminal box is either top or side mounted (LHS or RHS) on the motor and can be rotated 4 times by
90º thus allowing for multiple cable entry possibilities.
3.3 Balancing and coupling of transmission elements
To ensure a quiet and vibration free operation, proper axial and radial alignment of a balanced
transmission element (coupling, pulleys, fans, gear box, etc.) is essential.
As standard, rotors are dynamically balanced using a half feather key as indicated on the name
plate (H=Half Key).
Notice!
1) The transmission and coupling elements are required to be half-key balanced to
ensure a vibration free operation.
2) Coupling and motor temperature considerations must be taken into account
during alignment of the transmission.
3) Key must be removed from the motor shaft prior to starting if no transmission is
coupled.