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MAINTENANCE OF YOUR OPENER SYSTEM
Test door opener monthly. The garage door MUST reverse on contact with a 1 inch high solid test ob-
ject on the floor. If adjusting either the force or the limit of travel, retest the door opener. Failure to ad-
just the opener properly may cause severe injury of death.
KEEP GARAGE DOORS PROPERLY BALANCED. See owner’s manual. An improperly balanced door
could cause severe injury or death. Have a qualified service person make repairs to cables, spring as-
semblies and other hardware.
Once a Month:
1. Manually operate door, if unbalanced or binding, call a professional garage door service person.
2. Check to be sure door opens and closes fully. Adjust Limits and/or Force, (see pages 17, 19 and 21).
3. Perform safety reverse tests (Step 28 and 30). Make any necessary adjustments.
Twice a Year:
Check chain tension. If chain rests on bottom of rail, adjust tension by turning the two chain adjusting nuts at the end
of the rails (opposite the power head end) clockwise. Make sure to adjust both nuts equal amounts and adjust until
chain is approximately 5/8” above rails. If your opener is equipped with only a single nut simply turn the nut to adjust
the rail.
Once a Year:
1. Lubricate door rollers, bearings and hinges. (Refer to door owner’s manual for maintenance information).
2. Check batteries in Transmitters, Wireless Wall Station, Wireless Keyless Entry and Wireless Infrared Safety Sen-
sors (if included). When replacing batteries always use new batteries; never mix old and new batteries. Never mix
different types of batteries (see pages 14, 17 and 20). Alkaline or Lithium batteries are recommended for longer
life. Dispose of used batteries properly.