dormakaba 8907 AF PKT 90° Installation Instructions
08280151
09-2019
8900 Surface Applied Closers
5
Adjust closing speeds
Covers
3
Adjustments
Confirm closer spring size prior to making any
closing speed adjustments.
Do not back valve heads out beyond closer casting.
Door should close in 3 to 6 seconds from 90º.
Maximum opening angle is 90º.
Do not close valves completely.
3.1 Adjust closing speeds: sweep, latch, backcheck
Fig.5
Increase
Decrease
Increase
Decrease
Backcheck
Sweep & Latch
3.1.1 Adjust
closing sweep speed
: 90° to start of latch speed.
•
Increase sweep speed: Turn valve counter-clockwise
•
Decrease sweep speed: Turn valve clockwise.
3.1.2 Adjust
closing latch speed:
15° to close.
•
Increase latch speed: Turn valve counter-clockwise
3.1.3 Adjust
opening backcheck:
beginning at 80°.
•
Increase resistance: Turn valve clockwise
•
Decrease resistance: Turn valve counter-clockwise.
+
-
+
-
-
+
+
-
-
+
S
BC
L
DE
L
PO
S
S
L
4
Install covers
Fig.6
Snap valve
adjustment
wrench inside
cover.
4.1.1 Place tab in cover slot, opposite main
arm.
4.1.2 Place cover over closer and fasten
securely with screws provided.
Tab