4.10 M otor I nstallatIon
Couplings, drive belts, chains or other mounted devices must be in proper alignment, balanced and secure for safe motor operation. 4.10.1 M ountIng This motor must be securely mounted. Sufficient ventilation must be provided to insure proper operation. 4.10.2 I nstall s heaves a nd F an B elts
1. The fan sheave (A) and motor sheave (B) must be in axial alignment. Shafts must be parallel in both vertical and horizontal planes. 2.
A
The sheaves must be in radial alignment. When sheaves are of equal width, align with a straightedge (C). When sheaves are of unequal width, align center of sheaves. Check fan belts for proper tension and for signs of wear. Belt should have a slight sag at bottom of sheaves. Belt (D) is properly adjusted. Belt (E) is too loose. Belt (F) is too tight.
3.
C
B
F
D E
4.10.3 e lectrIcal
^ WaRNING
Prevent serious injury or death. Electrical installations must be performed by qualified electricians. Installation must conform to all national, local, and provincial codes and standards.
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