Dormakaba 8900 T Manual de instruções de instalação - Página 6
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dormakaba 8900 T/TH Installation Instructions
3
Adjustments
Confirm closer spring size prior to making any
closing speed adjustments.
Do not back valve heads out beyond closer casting.
3.1 Adjust closing speeds: sweep, latch, backcheck, delayed action
Fig.5
L
-
+
S
-
+
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
3.2 Adjust hold open (optional)
Fig.6
3.2.1 Place the hold open mechanism in desired
position and tighten screw.
8900 Surface Applied Closers
6
+
-
Decrease
Sweep & Latch
Increase
Increase
Backcheck &
Delayed Action
Decrease
3.1.3
•
•
3.1.4
•
•
3.2.3 To enable: push white slide into hold open
3.2.4 To disable: pull white slide away from hold open
08280121
Maximum opening angle is 80° - 160º.
Door should close in 3 to 6 seconds from 90º.
Do not close valves completely.
-
+
Adjust opening backcheck: beginning at 70°.
Increase resistance: Turn valve clockwise
Decrease resistance: Turn valve counter-clockwise.
Adjust closing delayed action: beginning at 180°.
Increase delayed action: Turn valve clockwise
Decrease delayed action: Turn valve counter-clockwise
3.2.2 To adjust hold open force:
•
To increase = turn CW
•
To decrease = turn CCW
mechanism.
mechanism.
Adjust closing speeds
Adjust hold open
-
+
09-2019