Position Bottom Rail here
Keeper Plate
Double Saddle
For Doors up to 3000mm High with Double
Saddles through Bolts and Keeper Plates
B.
For doors up to 3000mm high, rest axle on cast iron saddle.
Rest axle on cast iron saddle. Immediately loosely secure with
“U” bolts, nuts and washers, through slots in bracket arm. This
eliminates the door falling from the brackets (See sketch).
For doors over 3000mm high, rest axle between two cast iron
saddles. Immediately loosely secure with “U” bolts, nuts and
washers, through slots in bracket arm. This eliminates the door
falling from the brackets (See sketch). (See sketch below) If
chain gear is fi tted, ensure that the chain is placed around the
chain wheel and hangs down freely.
10mm Bolts
25mm x 5mm Plate
25mm x 5mm Plate
Cast Iron Saddles
Washers
Axle
Bracket Arm
C.
Before tightening “U” bolts or saddle bolts, position the door
1. So that it overlaps the opening evenly both sides.
2. So that the axle is positioned on the bracket arm slots as far forward as possible, while still allowing the bottom rail to pass the lintel
when the door roll is rotated. (See sketch B)
3. Rotate both the door and the axle so that the bottom rail is level with the bracket arm. (See sketch B) Now tighten the “U” bolts or
saddle bolts very tightly, using washers under nuts, to a torque of 40 newton metres or 30 ft.lb.
WARNING:
Axle must be securely clamped otherwise door will lose spring tension.
2.4 INSTALL GUIDES
Guides must be the correct length. The guide top is to be level with the top of bracket arm for preferred “normal headroom” fi xing or
above the bracket arm by dimension G for “restricted headroom” fi xing. If guides need to be shortened cut from bottom of guide.
Guide Lug
Cushion Head Stop
Bracket Arm
G
Spirit
Level
Chain Clip
Chain Wheel
GUIDE LENGTH – PREFERRED HEADROOM
Top of guides should be level with top of bracket arm for all door heights.
This is the recommended position for electrically driven doors.
GUIDE LENGTH – RESTRICTED HEADROOM
DOOR HEIGHT
DIMENSION G
Up to 4200mm
4200mm to 5100mm
Max 65mm
Max 45mm
Position guides true and plumb at each side of the opening. Allowing 3-4mm of working
clearance between the door and the inside of each guide, mark, drill and fi x both guides.
Use the 10mm (5/16”) coach screws and washers supplied (with suitable plastic plugs for
masonry application or other fi xings to ensure satisfactory attachment. (Note: Welding of
guides to steelwork is usually not recommended).
CREATING PROPER GUIDE LEAD-IN
The shape of lead-in is critical for successful door operation and trouble free performance.
The shape of lead-in needs to be formed by the installer and normally should be as shown on left.
Correct bending method:
1. With multigrips, bend top 5mm of lead-in approximately 45° to prevent Nylofelt catching on
lead-in.
2. Bend lead-in from door stop to top of lead-in (along press cut), to finish 15mm from its original
position.
3. Ensure the brackets are installed properly by checking curtain operation over the lead-in.
NOTE:
Installer may require to increase the 15mm dimension for larger door heights to ensure the
smooth operation of the door.
15mm (NOM.)
Guide Lead-In
Form
Top Door Stop
45°
5mm
CORRECT BENDING OF S2 GUIDE LEAD-IN
7
Firmadoor
®
Series 2 Installation Instructions
Revision 5 April 2011
