8
d.
L-bracket fixing bolt positioning
Take into account the actual surface condition before fixing the L-bracket: the bolt spacing is 406
mm (16 inches) for the inner ones and 508mm (20 inches) for the outer ones, as illustrated below.
Avoid electricity wire, metal conduit or pipe inside the wall; consider using wall scanner
(wall detector)
3.2
Installation
3.3.1 Installation tools
Impact drill
(3/8 & 13/64 drill)
Torque wrench
(7/16 & 9/16
hexagonal socket)
Marker pen
Electric batch
Hammer
Detector
Steel tape
Level ruler
Personal Protective Equipment (PPE)
508mm
（
20inches
）
406mm
（
16inches
）
Wall
L- bracket
