Sprockets and chain are replaced in order to accelerate the ops limit shaft to increase the accuracy of the limit system for sectional doors 8ft H or less
This is installed onto the panel when the door is opened it is engaged and will keep the door open above the header so there is no hang down of the door.
The door will stay open above the header to eliminated the door being damaged.
Apron: Laterally adjustable formed steel 11-3/4" l. x 4" w.
Pendant: 3/4" dia. square head bolt with adjusting nut zinc plated
Door Thickness: 1-3/4" to 2-1/4
Includes: 1 Pair in a box.
Included in each box:
12 flat head stove bolts 3/8" dia. x 2-3/4" l. for 150B1
12 flat head stove bolts 3/8" dia. x 4" l. for 150B2
2 carriage bolts 7/16" dia. x 1"â??long
1 lock joint clip for No. 33 track.
2 blinds for track ends
Compatible with LiftMaster® Models 85503 & 85503-267 DC Battery Backup Belt Drive WiFi® Garage Door Openers; featuring myQ® technology and Secure View™ Video Camera.
The Apollo XBA4 is a 13.1 ft long line of indicator lights for the click fixture on the upper or lower side of the barrier arm of the M3BAR and M5BAR barrier gate openers.