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ustment
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/
OPEN
FORCE
ADJUSTMENT
SCREW
CLOSE
FORCE
ADJUSTMENT
SCREW
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ADJUST DOOR FORCE: Determine that door force is not ex-
cessive in down direction.. Grasp the door handle or the bottom
of the door as it is about halfway through downward travel.
Normally the door should reverse by this action.
If it is hard to hold, or doesn't reverse, loosen the clown force
screw one turn at a time until the door reverses normally. This
means it will not reverse at the end of a travel cycle, and will
reverse when moderately obstructed.
A. Adjustment screws are near center of upper chassis flanges
as illustrated. "Close" force screw is on the right sicle (fac-
ing door)° "Open" force screw is on left side. Refer to
labels next to screws. Turn clockwise by half turns until
door opens and closes without reversing
B Tighten adjustment screws an added half turn to allow for
climatic changes.
CAUTION: Door force is not to compensate for faulty door
hardware.
Step 18
INSTALL LIGHT AND LENS: Install a light bulb* in socket.
Light turns on automatically when opener starts. It will turn
off automatically about 90 seconds after the opener stops, if
available, "Rough Service" bulbs should be used.
*Use 100 watt bulbs in Model t39 653000
60 watt bulbs in Model 139.653100
LENS: Gently squeeze lens and insert tabs in slots in chassis.
Release pressure and lens will snap into place., To
remove lens, reverse this procedure
USE MODEL
IOOWATT BULB 139 65300
60 WATT BULB 13965310
_--'_-_ _'_""_ LENS
-13 -
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