58
ED50
08-2018
DL4614-140
dormakaba ED50 OHC Installation Instructions
Chapter 28
28 Install axle extension and overhead arm
28.1 Install axle extension and overhead arm
Fig. 28.1.1 9 mm axle extension and arm installation
Fig. 28.1.2 Overhead arm installation
1
Arm, overhead
center hung
2
ED50 OHC axle
9 mm arm extension kit
Fig. 28.1.3 DC3404-060 axle extension kit
3
3.3
3.2
3.1
3
9 mm arm extension
DC3404-060
3.1
M8 SHCS, 1 3/8"
long, custom
3.2
Conical spring
3.3
O Ring
NOTICE
Double doors:
Install axle extensions and arms at
both ED50 OHC operators using
steps in
Para. 28.1.1.
28.1.1 Install 9 mm axle extension and
OHC center hung arm.
1. Insert conical spring and O ring onto
M8 SHCS.
2. Place 9 mm axle extension over
ED50 axle.
3. Install OHC arm over axle extension
parallel to header as shown in
Fig. 28.1.1 and 28.1.2.
4. Insert M8 SHCS through arm and axle
extension.
5. Using 5 mm T handle hex key, thread
M8 SHCS into ED50 OHC operator axle
and tighten screw.
CAUTION
Torque wrench with 5 mm hex key
socket must be used to tighten M8
screw to 26 ft-lb.
2
3
1
3.3
3.2
3.1
RH
Jamb
DC3404-060:
3
9 mm arm extension
3.1
M8 SHCS, 1 3/8"
long, custom
3.2
Conical spring
3.3
O Ring
