10
Combine Mounting Rails together using the BT8390-EXT
i. On the intended front facing side of the mounting rail (part D1) insert 4 x joining
bars (part F1) half-way into each slot, on the back side insert 1 x joining bar into
the top slot and 1 x joining bar into the third slot (
see fig. 1
). Loosely fasten the
2 grub screws (part F2) on each joining bar fixing it to the mounting rail.
ii. Slide another mounting rail (part D1) onto the joining bars
and tighten all the grub screws, combining the rails securely.
D1
BACK
FRONT
GRUB
SCREW
JOINING
BAR
D1
D1
F1
F2
F3
OPTIONAL: EXTENDING THE MOUNTING RAIL
F1
fig. 1
