Installation Manual 5000MM
Page 6 of 9
May 2019
OPERATING INSTRUCTIONS
Start fan and check rotation. Viewed from top (discharge),
fan blades should rotate clockwise.
Hudson recommends to re
-
verify the blade clamp torque
after the initial 10
-
15 minutes of cold operation (i.e., the fan
doesn
’
t need to be exposed to the working temperature of
the process). This will ensure that the blades are settled
within the clamps after the centrifugal forces have acted.
Check motor power consumption to be sure fan is pulling
desired load.
CAUTION: If positive pitch is set in summer to
use all available motor amps (nameplate rating),
motor
could be overloaded in winter.
Design pitch angles usually
do not use all of the available motor horsepower. This en-
sures that the motors will not be overloaded at low winter
temperatures.
For the fans that have remained idle (such as a shut
-
down
or turn
-
around), it is highly recommended to re
-
verify the
torque on the blade clamps before putting it back into oper-
ation.
