1. Pull emergency release cord on carriage to disengage opener to close door if
necessary. (If unable to lower door using opener, use
extreme caution manually closing door. Before pulling
emergency release cord, make certain people and
objects are clear of door opening.)
2. Unplug opener power cord from power receptacle.
3. Open lens cover by pressing outer tabs on both sides
of motor and swing down to remove light bulbs. FIG. 1.
4. Remove wall control and Safe-T-Beam wires from
terminal block located on rear of opener FIG. 1A. Use
small common screwdriver to press in on orange tabs
while gently pulling wires from block. Mark wires to
help facilitate replacement.
5. Remove the cotter pin & clevis from door arm to
separate door from opener. FIG. 2.
6. Remove motor head and rail assembly from mounting
brackets/hardware and set on a clean work surface or floor.
7. Remove the 3-5/16” bolts from rail to motor mount to remove rail. FIG. 3.
Drive Sprocket Replacement
This repair will require removal of the unit from it’s mounting hardware and repairs made on a bench or floor. Refer to the
Owners Manual and/or Installation Poster for proper assembly and carefully read and understand all warnings and cautions
pertaining to the unit.
FIG. 1.
39187502683
11/2014
WARNING
WARNING
BE SURE ELECTRICAL POWER HAS BEEN DISCONNECTED FROM THE INPUT POWER LINES PRIOR TO REMOVING THE
MOTOR COVER.
!
ANY AND ALL REPAIRS MADE TO THIS UNIT MUST BE PERFORMED WITH THE DOOR DISCONNECTED FROM THE OPENER
AND IN THE CLOSED POSITION.
!
Lens Cover Tabs
FIG. 2.
FIG. 3.
6 5 4 3 2 1
Wall Control 1-2
PhotoCells 3-6
Wire Tabs
FIG. 1A.
