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Maintenance
Inspect propeller
Fasteners
Retighten nuts and bolts on a quarterly basis. Follow the
torque specifications in the chart.
¼'-20 X ¾" HX HD BOLT
5/16"-18 X ¾" HX HD BOLT
5/16"-18 X 2" HX HD BOLT
3/8"-16 X 1 ¼" HX HD BOLT
¼" SETSCREWS (BEARINGS)
5/16" SETSCREWS (PULLEYS)
5/16" SETSCREWS (BLADE)
1" I.D. X 1 ¾" O.D. TRAN TORQUE
Lubrication
Lubricate the pillow block bearings every two months with a NLGI type 2 Lithium grease using .8 grams
( approximately 1 pump) if you run the fan 8-10 hours a day. NOTE: It is possible to overgrease a bearing.
Clean Fan
Motor: Remove any dust accumulation from motor using a brush or cloth (DO NOT USE A PRESSURE WASHER ON
THE MOTOR). A clean motor will run cooler and last longer. Check if the motor is secure in its mount.
Shutter: Carefully clean dust from shutter vanes and frame so that shutter opens and closes freely. If shutters are
extremely dirty, you can lose up to 20% of your fan capacity.
Guard: Clean any dust or dirt buildup from fan guards using a brush. Dirty guards can also reduce airflow.
Housing
Remove dust and dirt accumulations from housing with a pressure washer.
Do not wash or spray motor directly.
If any portion of the fan is cleaned with a power washer or any liquid it is highly recommended to run the fan for
a minimum of 15 minutes to allow the fan and motor to dry before it is left idle for any length of time.
©2021 Valco Industries, Inc.
Fastener / Device
NEVER SPRAY ELECTRICAL EQUIPMENT WITH A POWER WASHER!
Recommended Torque
80 – 85 in. lbs. (Approx. 9.0 Nm)
140 – 150 in. lbs. (Approx. 16.0 Nm)
140 – 150 in. lbs. (Approx. 16.0 Nm)
15 – 20 ft. lbs. (Approx. 24.0 Nm)
80 – 85 in. lbs. (Approx. 9.0 Nm)
80 – 85 in. lbs. (Approx. 9.0 Nm)
80 – 85 in. lbs. (Approx. 9.0 Nm)
125 ft. lbs. (Approx. 169.0 Nm)
21
ELECTROCUTION!
Disconnect power
before servicing this
equipment.
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