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Damper Maintenance
Greenheck's dampers are designed to be trouble free and hassle free under normal operation. Dampers are to
installed square and straight so as to prevent binding during operation. the following annual damper maintenance
suggestions will help to insure proper damper operation and increase the life expectancy of the damper.
Foreign Matter
Over the course of time, dirt and grime may collect on damper surfaces. The damper
surfaces should be cleaned to prevent hindrance to airflow.
Moving Parts
Make sure that parts such as linkage, bearings, blades, etc. that are intended to move freely,
can do so. Lubricating these components can prevent possible rusting and unnecessary
friction increase. Use only a moli-spray oil or similar graphite based oil as regular lubricating
oil will attract dirt.
Bearings. Synthetic, oil impregnated, and ball bearings (without grease fittings) do not
require lubrication. Ball bearings with grease fittings require only minimal grease.
Closure
Remove foreign materials that may be interfering with blade closure or effective sealing of
the blades with each other or with the frame.
Operation
While operating the damper through its full cycle, check to see that the blades open and
close properly. If there is a problem, check for loose linkage, especially at the actuator.
Tighten the linkage where required.
Our Commitment
As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications
without notice.
Product warranties can be found online at Greenheck.com, either on the specific product page or in the literature
section of the website at Greenheck.com/Resources/Library/Literature.
®
Phone: 715.359.6171 • Fax: 715.355.2399 • Parts: 800.355.5354 • E-mail: gfcinfo@greenheck.com • Website: www.greenheck.com
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474014 • AMD & AMS Series, Rev. 12, September 2018
Copyright 2018 © Greenheck Fan Corporation
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