36
1
To correctly pass the test, the following requirements must be met:
"
The door must be easy to operate.
#
- If the door is not easy to operate, check the following :
!
Door levelling
!
Roller adjustment
!
Track levelling and squaring
#
-If the door does not stop between the two final positions, check the
spring tension.
!
If the door continues to open, you need to reduce the spring tension.
!
If the door continues to close, you need to increase the spring tension.
17.3 Spring tension
Warning!
To prevent bodily injury, you must insert a tension bar
firmly in the spring cone and ensure that it is securely
fixed in place before releasing the screws.
The tension in the spring will be transferred to the torsion
bar when the set screws are released.
Reference instructions:
-Insert the bar in the spring cone.
-Loosen the set screws
(1).
-With the winding bar, increase the
spring tension.
-Tighten the screws.
-Follow the same procedure for all the
springs.
MT10051002-GB /10-09-27
GB
RESIDENTIAL SECTIONAL GARAGE DOORS
INSTALLATION, USE & MAINTENANCE MANUAL
DOORS AND AUTOMATION SYSTEMS
