4
Closer Valve Adjustment
Check closing time, and adjust closer if needed.
CAUTION
Opening the regulation valves (described below) too
far may result in the closer leaking oil! This may result
in closer and property damage, and personal injury.
FOLLOW ALL INSTRUCTIONS CAREFULLY.
L
Valve must be closed CW to seat, never more than 3 turns
CCW from seated position. Adjust the valves in
Z\v
turn
increments or less at a time. DO NOT TURN MORE THAN
3 FULL ROTATIONS. THIS WILL CAUSE THE CLOSER TO
LEAK OIL!
L
DO NOT ADJUST THE LATCH SPEED IF THE DOOR DOES
NOT LATCH. If this occurs, adjust the spring force.
1. Open the door to 90°, measure how long the door takes to
close and latch. A typical closing time is 5 to 7 seconds, evenly
divided between main speed and latch speed.
2. If the closing time needs to be adjusted, use the closer valves
described below.
a. Backcheck- this controls door speed opening as the door
angle approaches 90°.
Do not use as a door stop.
b. Main Speed- this controls door speed during most of the
closing motion.
c. Latch Speed- this controls door speed during the last few
degrees of door closing.
3. Turn the valves clockwise to decrease door speed, and
counterclockwise to increase door speed. The latch speed and
main speed should be adjusted together.
BC
L
M
BC
L
M
BC = Backcheck valve
M
= Main speed valve
L
= Latch speed valve
Optional Hold Open Track
1 See the image below to determine the direction of the Hold Open Block.
HOLD-OPEN OPTION
a
x2
b
Screw type
Picture
Cylinder
mounting
Track mounting
- pull side
Track mounting
- push side
Arm attachment
Wood screw
4 @ 14 x
1Z\x
"
4 @ 14 x
1Z\x
"
Wood screw
2 @ 14 x
2Z\x
"
Machine screw
4 @
Z\v
-
20 x
B\,
"
4 @
Z\v
-
20 x
B\,
"
Machine screw
2 @
Z\v
-
20 x 1
C\v
"
SRT screw
4 @
Z\v
-
14 x 2
Z\x
"
4 @
Z\v
-
14 x 2
Z\x
"
SRT screw
2 @
Z\v
-
14 x 2
Z\x
"
Machine screw
M6 x 10mm
Thru bolts
4 @
Z\v
-
20 x 1
B\,
"
