18
1.
2.
3.
The patio door is opened
by turning the handle to a horizontal position
and pushing the door leaf outwards. The door opens to 90º and is
equipped with a friction arm which allows it to be held in any position
between closed and fully open. Doors can be fitted with a hinge to allow
180º opening but then cannot be fitted with a friction arm.
Double doors
can be supplied with different types of mullion - see
page 25 for more information.
Care.
It is important to keep the guide rails free of dust and dirt by using
a soft brush or cloth (1). The guide rails should not be oiled as this will
accumulate dust and dirt, and remove friction. The hinges require oiling at
least once a year using a teflon-based lubricating oil or a similar product.
In order to ensure the hinges are properly lubricated, the patio door
should be opened and closed several times during and after oiling (2).
Friction arm adjustment.
The friction arm, found at the top edge, can
be adjusted by turning the friction bolt using a 4mm hexagon key (3).
VELFAC 231 Casement door
