20
ED100/ED250
02-2018
DL4614-050
dormakaba ED100/ED250 Service Manual
Chapter 11
11.1 Set operator spring tension
11 Operator spring tension
11.1.2 Operator spring tension function
1. Spring tension sets closing force on door.
2. Required spring tension is based on door width.
11.1.3 Spring tension adjustment factory setting
1. Spring tension adjustment is factory set fully CCW,
no spring tension.
2. Spring has to be pretensioned per Para. 11.1.1.
CAUTION
A minimum of ten spring tension revolutions
are required to operate system.
Fig. 11.1.1 Spring tension adjustment
1
ED100/ED250
operator
2
Spring tension
adjustment access
hole in header
3
T handle hex key,
5 mm
Door width
Inches
32
36
42
48
56
mm
813
914
1067
1219
1397
Spring setting
revolutions
ED100
10
14
16
18
ED250
14
18
24
11.1.1 Spring tension setting revolutions
CAUTION
Any change to spring tension setting requires a
new learning cycle (Chapter 13)!
TIPS AND RECOMMENDATIONS
System checks spring tension during learning
cycle.
Learning cycle will be canceled if spring is
insufficiently tensioned; door will stop and
display will show a rotating "0" and an "F".
11.1.4 Check door closing force
1. Para. 11.1.1 table lists approximate spring tension
settings.
2. Use pressure gauge to check door closing force at 2°
and adjust tension setting if necessary.
3. For reveals greater than 11 5/16" [300 mm] check
minimum closing force between 88° and 92°.
4
5
Door pressure
gauge
Fig. 11.1.2 Door pressure gauge
4
Fig. 11.1.2 Spring tension
4
Spring tension
adjustment
