page 37
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Pinion Spyder
First
Secured End
Spirit Level
Pinion
Foundation
Plate
FIGURE 56. THE RACK AND OPERATOR FROM THE GATE'S PERSPECTIVE
Slide the gate halfway along the first section and level the unsecured end, ensuring that
the rack is resting on the Pinion Spyder, not pressing down. Continue this way to fix all
sections.
Level this end of the rack,
and fix it to the gate
Before fully fixing each section of rack, slide the gate backwards and forwards
along the section, checking that the rack is only resting on the Pinion Spyder,
and not pressing down onto it.
OPERATOR INSTALLATION
SECTION 7
7.9.1. Fitting Different Types of Rack to the Gate
Steel Rack
FIGURE 57
FIGURE 58
±300mm
Gate
Steel
Rack
Welded
join
Clamp
Off-cut
Steel
Bracket
Steel
Rack
Fix the Steel Rack with the steel
angle brackets provided. The
brackets must be spaced no more
than 300mm apart.
When joining different lengths of
Steel Rack, a simple way of ensuring
that the correct pitch spacing is
achieved, is to clamp a small off-cut
between the two pieces.
Do not weld the off-cut
to the gate or the join.
±300mm
