Prepare & Test The Door - Chamberlain RollerLift Plus CR855MYQ Installation And Operating Instructions Manual

TESTING THE DOOR
5
Complete the following test to ensure your door is well balanced, and
not sticking or binding:
• Disable all locks and remove any ropes connected to the garage door.
• Lift the door to about halfway and then release it. The door should
remain spring balanced.
• Raise and lower the door to determine if there are any sticking or binding
points (20 kgf is the absolute maximum allowable to raise or lower the
door in any position).
If your door does not hold in place or the door binds or sticks, call a qualified
door technician before installing the opener.
ATTACHING THE STOP COLLAR
6
• The stop collar is required to be installed on the opposite side
of the door to where the opener is to be installed.
• Ensure the U-Bolt holding the door shaft to the door bracket is
tightly secure.
(NOTE: This U-Bolt must not be removed or loosened)
• Remove the bolt assembly from the plastic stop collar. Open
the collar as wide as possible and push it onto the door shaft.
• Fit the stop collar hard against the boss of the door drum.
Reinstall the bolt assembly onto the stop collar and tighten.
ATTACHING THE WEIGHT BAR
7
If the door has a lifting handle, remove the handle, nuts & bolts. Place the
weight bar over the handle holes, insert the extended bolts through the
weight bar & fasten the handle back in place.
• Place the weight bar in the centre of the door as shown.
If the door curtain does not have a handle you will need to follow these
instructions:
• Use a marker pen to mark the two hole positions.
• Drill two 5.5 mm holes through the two marked positions, then place the
weight bar on the inside of the door.
• Use the bolts, washers and nuts (provided) to fasten the weight bar in
place.
INSTALLATION
Non opener side
SAFETY CHECK!
Is the stop collar installed?
YES: proceed to the next
step
NO: install the stop collar
before proceeding
5
Opener side
1
Boss