Hinkley 900972FMM-NWA Manuel D'instructions page 13

INSTALLATION OF THE BLADES
Blade Arm
Blade
Nut
Fig. 1
Screws
Fig. 2
Screw & rubber
washer
Blades
Assembly
Place blade over blade arm and align blade with
1
mounting holes in blade arms. Repeat this procedure
without tightening the screw until all 3 screws and
nuts have been started into the blade arm (Fig. 1).
2
Tighten each screw starting with center screw.
Fasten blade assembly to motor with provided
3
screws and lock lockwashers by uses Blade Arm
Wrench. (Fig. 1) Repeat procedure for remaining
blades. Make sure screws are TIGHT! Loose motor
screws can contribute to unnecessary hum during
operation. (Fig. 2)
NOTE:
Cordless power screwdrivers are NOT recommended,
as they usually strip the heads of the screws and
usually will not fully compress the lock washers on
the motor screws. Use a large flat blade screwdriver
for final tightening to fully compress the washers. This
will help ensure proper alignment of the blades and
noise-free, wobble-free running.
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