Häfele 442.48.900 Mode D'emploi page 6

Counterbalancing mechanism with spring loaded shaft for KS tambour doors
1.) Tensioning definition
Tensioning the spring loaded shaft with an open-ended spanner or shaft holder at the milled
double flat spindle, anticlockwise.
With every rotation the tensioning lock (small cylinder pin) drops downwards in the tube and blocks
the return in the milled-in helical groove of the double flat spindle.
The number of tensioning operations depends on the length and width of the roller shutter.
Procedure:
Before tensioning the spring loaded shaft, fit roller shutter to spring loaded shaft by sliding
•
onto the clamping rings.
Wind roller shutter all the way around the spring loaded shaft (once).
•
Count number of windings around the spring loaded shaft and unwind roller shutter again,
•
as shown in picture.
The number of tensioning revolutions can be found in the table below:
•
This information is approximate and must be compared with the actual cabinet situation
and the roller shutter (width/height).
Spring type
Spring 4 kg
Cabinet width 430-500mm
Spring 6 kg
Cabinet width 501- 700mm
Spring 10 kg
Cabinet width 701-1200mm
2.) Installing the shaft holders (consoles)
left double flat spindle
6/24
Only shorten expander end here
Internal Internal
Revo-
dimensions dimensions
lutions
Height in mm Height in mm Height in mm Height in mm Height in mm Height in mm
max.
450 750
approx. 3-5 approx. 4-6
rev. rev.
14
approx. 4-6 approx. 5-7
rev. rev.
16
approx. 4-7 approx. 5-8
rev. rev.
13
Top drill hole (tensioning lock)
The locking pin drops down when the springs are
tensioned and blocks the return of the springs
Spring loaded shaft tensioning direction
Internal Internal
dimensions dimensions
1080 1470
approx. 5-7 approx. 6-8
rev. rev.
approx. 6-8 approx. 7-9
rev. rev.
approx. 6-9
approx. 7-10
rev.
rev.
Installing the two shaft holders in the cabinet with
Euro screws (left + right).
Front row of holes of shaft holder tailored to intervals
of 25 and 32mm.
Internal Internal
dimensions dimensions
1920 2430
approx. 7-9 approx. 8-11
rev. rev.
approx. 8-10 approx. 10-12
rev. rev.
approx. 10-13
approx. 8-11
rev.
rev.