Adjustments - Assa Abloy Norton D6061 Series Installation Instructions Manual

Adjustments

A. Adjust mechanical closer features on each operator.
NOTE:
• Make necessary mechanical adjustments
so unit functions as a standard surface
mounted door closer before adjusting
spring force, applying power, adding
accessories or making electrical/
programming adjustments.
• Valve location S/D is not adjustable.
Do not remove valves from closer.
Hydraulic oil will escape.
1. Closing Speed Controls (Figure 25)
• Valve "S" controls Sweep Range from
full open to 10°.
• Valve "L" controls Latch Range from
10° to closed.
2. Opening Cycle (Figure 25)
• Valve "B" controls strength of cushioning
in Backcheck Range.
NOTE: NEVER close Backcheck valve
completely – it is not to provide a
positive stop.
• Valve "P" adjusts angle that backcheck
is felt in open cycle. Factory preset is
typically acceptable.
B. Adjust spring force on each operator.
NOTE:
• The amount of effort to manually open or
close a door is called force and is controlled by
the operator's closer spring.
• Make necessary mechanical adjustments
described in "A" above.
• A closer set to ADA required 5 lbs opening
force may not be strong enough to close door
due to latching hardware, air pressure, or
frame issues.
1. Using 11/16" wrench, turn nut in end of each
closer body tube to desired force.
(Figure 26)
NOTE: If spring adjustment nut is too close
to end cap and wrench will not reach nut,
remove Torx screw in end cap access door and
slide door open. When finished, slide access
door closed and reinsert #6 Torx flat head
screw to secure door. (Figure 26)
12
D6061/D6071 Unitrol Double Unit Series (Push Side) Power Operator
Figure 25
Copyright © 2019-2020, ASSA ABLOY Accessories and Door Controls Group, Inc. All rights reserved. Reproduction in whole
or in part without the express written permission of ASSA ABLOY Accessories and Door Controls Group, Inc. is prohibited.
View of Left Hand operator from ceiling looking down
View of Left Hand operator
Figure 26
80-9360-1031-020 Rev 6 11/20