CLOSING FORCE CHECK (Motor Installed)

CLOSING FORCE CHECK
(Motor Installed)

A Cloth

B Glass

C Spring scale

Closing Force : 200–300 N (20–30 kg, 44–55 lbs)

1. After installing all removed parts, have a helper hold the switch to close the glass while you measure force required to stop it. Attach a spring scale as shown. Read the force as soon as the glass stops moving, then immediately release the switch and spring scale.
2. If the force is not within specification, install a new lock washer, adjust the tension by turning the motor clutch adjusting nut, and bend the lock washer against the motor clutch adjusting nut.

CAUTION: When using a spring scale, protect the leading edge of the glass with a cloth.

A Lock washer

B Motor clutch adjusting nut

C Motor

D Counter-clockwise

E Clockwise

• Turn lock washer clockwise to increase force, counter-clockwise to decrease force.