203729
Rev. E, 11/20/18
© 2018, THE STANLEY WORKS. ALL RIGHTS RESERVED. 3 of 18
2. PREREQUISITES
2.1 Electrical power to the door has been deenergized before performing installation or maintenance.
2.2 Protective barrier (caution/warning tape) has been set up to prevent unauthorized access to work
area.
2.3 The area has been cleared of all obstructions.
2.4 Attachment 1 has been reviewed for the following:
• Definitions of the terms used in this procedure
• A listing of the documents, special tools and equipment, materials, and consumables used in
this procedure.
2.5 Attachment 3 replacement parts list has been reviewed.
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