1. Before pulling emergency release cord, make certain people and objects are clear of door opening. 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.
2. Remove power from opener.
3. Remove lens cover(s) by pressing side tabs inward and remove light bulb(s). FIG. 1.
4. Remove wall control and Safe-T-Beam® wires from terminal block located on back of opener FIG. 1. Use small
common screwdriver to press in on orange locking clips while gently pulling wires from block. Mark wires to
help facilitate replacement.
5. Remove opener from mounting brackets and hardware and set on a clean work surface.
6. Remove 3 bolts from rail assembly and set powerhead aside. FIG. 1.
7. Loosen tension nut at front of rail to remove tension on Chain/Belt. FIG.2.
Pulley Bracket Assembly Replacement
39432502927
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.
!
01/2016
Refer to your Owners Manual or assembly poster for proper assembly and carefully read and understand all warnings and
cautions pertaining to your unit.
Terminal
Holes
Locking
Clips
1
2
3
4
5
6
Photocell
Photocell
Wall
Control
FIG. 1.
Top View Pulley Bracket
(at wall end of rail)
Loosen nut (counter clockwise) to create slack
Use 1/2" socket
on adjustment nut
(Do not fully remove)
FIG. 2.
This repair will require removal of the unit from it’s mounting hardware and repair made on a clean work surface.
Refer to your
owners manual to reverse the wiring, mounting, and assembly process.
READ AND FOLLOW ALL SAFETY, INSTALLATION AND
OPERATION INSTRUCTIONS AND WARNINGS CONTAINED IN THESE INSTRUCTIONS AND THE OWNERS MANUAL.
If you
have any questions or do not understand an instruction, contact a trained service technician. Or call
800-354-3643
.
