Installation - Chamberlain Merlin Professional MT230 Installation And Operating Instructions Manual

17
CONNECT DOOR ARM (SECTIONAL DOORS)
Makes sure garage door is fully closed. Pull the
emergency release handle to disengage the trolley.
Slide the trolley assembly back 200mm from the
idler pulley.
Figure 1.
• Fasten straight door arm section to trolley
assembly using the hardware provided with
your opener.
Figure 2.
• Bring arm section together. Find two pairs
of holes that line up and join sections.
Select holes as far apart as possible to
increase door arm rigidity.
Figure 3.
• If holes in curved arm are above holes in
the straight arm, disconnect straight arm
and cut approximately 150mm from
solid end. Re-connect to trolley with cut
end down as illustrated.
• Bring arm sections together.
• Find two pairs of holes that line up and join
with bolts, washers and nuts.
HARDWARE PROVIDED
5
CONNECT ELECTRIC POWER
TO AVOID INSTALLATION DIFFICULTIES, DO NOT RUN THE GARAGE DOOR OPENER UNTIL
INSTRUCTED TO DO SO.
Connect the opener to a properly EARTHED power outlet, installed in compliance with local building
and electrical standards.
4 2
3
1
Figure 1
Pulley
R-clip
Fastener
Door
Bracket
1
Figure 2
Pulley
Figure 3
Pulley
10
Trolley
2 Emergency
Release
Handle
Straight
Door Arm
Curved Door Arm
Trolley
Trolley
Clevis Pin