8
4. INSPECT THE SPINE (TOP EDGE) OF THE DOOR for weaknesses such as
cracks or wood-knots. Ensure that the point that the door mount
bracket is attached to, will sufficiently support the weight and load
of the door when operated.
If there is any question to the above, replace or brace the spine
(top edge) of the door with stronger material.
5. ENSURE THAT ANY MECHANICAL LOCKS are either removed or se-
curely locked in the UNLOCKED position.
6. ONE CHALLENGER DOOR OPERATOR IS NOT INTENDED TO BE USED TO
OPERATE TWO SINGLE GARAGE DOORS IN TANDEM. i.e. one motor
per installed door.
E.T. Systems will not guarentee any Challenger unit working on
more than one door. However, the Challenger units will be able to
automate one complete double oversized door.
7. PLEASE BE SURE TO MATCH THE DRAWBAR LENGTH to the type of
hinge assembly when automating oversized doors.
8. Please note that the Challenger range of garage door operators
are NOT IP55 weather-proof rated and are thus only intended for
installations in protected garage-type conditions i.e. under a roof
and out of the wind. This is even more critical when the unit is used
near a coastline.
BEFORE INSTALLING
