Vertical Express HD98 - Page 15

HD-98 Door Operator with OST Mechanical Installation and Adjustment
Printed in USA November, 2011
13
Adjusting the Drive Arms
(continued)
Figure 5 - Adjusting the Drive Arms
Doors Fully Open
A
B
C
Straight line
through points
B, A, and C.
Point B is center
of Drive Wheel
Drive Arm and Connecting Arm in straight line.
Pivot
Arm
Drive
Arm
Adjustable
Intermediate
Arm
Spacer
Plate
Bearing
Spacer
A
B
C
This is the distance between
top of intermediate arm and
center of the drive wheel
(point B).
1
/
2
to 1
1
/
2
(13mm to 38mm)
Doors Fully Closed
Pivot
Arm
Spacer
Plate
Adjustable
Intermediate
Arm
Bearing
Spacer
Drive
Arm
Mechanical
Stop–door
Open
Adjustable
Intermediate
Arm
Pivot Arm
Pivot
Point
Adjustable
Arm
B
C
Door
Open