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827802-0001 Rev -
17
SECTION 3 - FIRST MANUAL DOOR OPERATION
NOTE: Double check belts. Be
sure they are tight and properly
aligned.
NOTE: Tighten all set screws
in set collars and bearings.
NOTE: Check and tighten all
nuts and bolts.
NOTE: Be sure all equipment
and personnel are clear of the
door opening.
NOTE: Lower the door with
the hand chain.
NOTE: While
lowering the door look
and listen for smooth
operation. Be sure the
counterweight sliders
are engaged in the
alignment track the
entire path up.
CHECKLIST AND MANUAL DOOR LOWERING
1
2
3
4
5
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