FIG.3
FIG.4
4
Back
A B
Front
Back
12
12
20
20
Plug wires of both triggers into the scoreboard #16.
Slide the rim #12 into the metal track.
And please make sue the rim is on top
of trigger.
Fix the rim by screw set #20.
Noted: Please ensure that washers are used
on both rims as shown in FIG B