6
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 1/4 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 a 3/32” hex
wrench to adjust the closer valves described below.
a. Backcheck (BC)- this controls door speed opening as the
door angle approaches 90°.
Do not use as a door stop.
b. Main Speed (MD)- this controls main speed for cylinders.
c. Latch Speed (L)- 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.
L
MD
BC
BC
L
MD
BC
= Backcheck valve
MD
= 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. This is determined by the door handing.
LIGHT HOLD-OPEN FORCE
STRONG HOLD-OPEN FORCE
HOLD-OPEN OPTION
a
x2
b
a
x2
b
or
Screw Type
Screw Pack
Picture
Cylinder
Mounting
Track Mounting Track Mounting -
Push Side
Wood (for wood doors & frames)
Wood &
Machine
Screw Pack
(WMS)
4 @ #14 x 2
M\,
"
4 @ #14 x 2
Z\x
"
4 @ #14 x 1
Z\x
"
Machine (for metal doors & frames)
Requires hole drilling & tapping; best
hold.
WMS
4 @
Z\v
-20 x
2
Z\v
" 4 @
Z\v
-20 x
1
C\v
" 4 @
Z\v
-20 x
Z\x
"
SRT - Self Reaming & Tapping (for
metal doors & frames)
Standard
4 @
Z\v
-14 x
3
Z\,
" 4 @
Z\v
-14 x
2
Z\x
" 4 @
Z\v
-14 x
1
C\,
"
Screw Type
Screw Pack
Picture
notes
Pinion Spacer
Standard
Long Screw
Standard
Z\v
-20 for
attachment of the
arm (see step 8).
Thru Bolt
Order TB
Screw pack
1
>\cx
” or
1
ZM\cx
” or
1
XZ\cx
”
