LiftMaster LJ8900W Manuel D'instructions

After Installation, Please Leave with Customer
This product is to be installed and serviced by a trained door systems technician only.
This product may require adjustments to door springs and/or track configurations. This
product is not intended for use on low headroom tracks with outside pickup drum or
doors utilizing extension springs.
• Please read this manual and the enclosed safety materials carefully!
• The door WILL NOT CLOSE unless the Protector System
are connected and properly aligned.
• Periodic checks of the operator are required to ensure safe operation.
• The model number is located on the front cover of the operator.
• DO NOT exceed 10 complete cycles of door operation per hour.
Register your door operator to receive updates and offers from LiftMaster
Light-Duty Jackshaft Operator
Take a photo of the
camera icon including
the points ( ).
Send it in by texting
the photo to 71403
(US) or visit
www.liftmaster.photo
(Global)
for Sectional Doors
Model LJ8900W
For Light Duty Commercial Use
Install On Sectional Doors With
Torsion Assemblies Only
NOT FOR RESIDENTIAL USE
and cable tension monitor
®
2 YEAR WARRANTY
LiftMaster
300 Windsor Drive
Oak Brook, IL 60523