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ATD 50 Actuator
®
Operating Instructions
Page 8
3811 N. Holton Street • Milwaukee, WI • 53212 •USA • Phone • 414-906-4000 • Fax 414-906-4100 • www.MPCovers.com
4.1.3 Installation
The ATD 50 Actuator
®
internal frame is mounted into the metal enclosure with 6
screws. (There are two screws on the back of the unit and four button-head cap
screws on the top.) For installation, only the four screws on the top OR the two
screws on the back should be used.
Never loosen all 6 screws at the same time! Otherwise the internal frame will be
loose inside the metal housing. If the internal frame is allowed to move inside the
metal housing, the drive shaft can be damaged by scraping against the sealing
elements.
Under no circumstances should the large hexagonal screw on the drive pulley
be loosened!