EN
13.3
Spring unit installation
1. Unlock the barrier (see chapter 23) and move the boom into the completely open vertical position.
2. Fasten the spring unit
SP/85/AS/02
to the linkage lever using the screws included (fig. 17), according to the opening direction and in the position that allows the
correct movement of the barrier. The internal roller bearing [
S
] is composed of 3 modular elements which, if incorrectly assembled, inhibit the correct operation of the
barrier.
CAUTION
: using the slider hole that is the farthest from the linkage lever centre, during barrier operation, the springs will be more tensioned, while, vice versa, when using
the slider hole that is the closest to the linkage lever centre, the springs will be less tensioned.
3. Fasten the springs to the fixed structure (fig. 18) on the steel cross bar of the barrier, using the screws included. The heavier the boom is (totality of the accessories
installed), the more to the outside the springs should be installed (hole
A
).
4. Check the correct operation of the balancing system.
• Lift the boom manually to an angle of 45° and let go. If the boom rises or falls, try another position of the slider
CU1
. Whenever this is not sufficient, the slider can be
rotated by 180°, to change the 2 mm holes pitch (fig. 15 - values 136 and 138).
• To obtain millimetre precision, replace CU1 with the
CU2
slider included (fig. 16 - values 135 and 137).
5. Grease the points indicated in fig. 17 and 18 with LITHIUM grease (EP LITHIUM). Available upon request, article
RS/GR1/100
: 100 g can of lithium grease.
Lithium
Li
A
B
C
OBBLIGATORIO LUBRIFICARE!
OBLIGATORY TO LUBRICATE!
17
18
Lithium
Li
OBBLIGATORIO LUBRIFICARE!
OBLIGATORY TO LUBRICATE!
LATO INTERNO (BARRIERA)
INTERNAL SIDE (BARRIER)
LATO ESTERNO
EXTERNAL SIDE
LATO ESTERNO
EXTERNAL SIDE
8
7
6
5
4
3
2
1
S
S
Lato Esterno
External side
S
1. VITE -
SCREW
2. RONDELLA -
WASHER
Ø 15
3. RONDELLA -
WASHER
Ø 12,5
4. BOCCOLA -
SOCKET
5. RONDELLA -
WASHER
Ø 15
6. RONDELLA -
WASHER
Ø 24
7. RONDELLA -
WASHER
Ø 24
8. DADO - NUT
4
3
2
LATO INTERNO (BARRIERA)
INTERNAL SIDE (BARRIER)
