INSTALLING ONE-PIECE GARAGE DOOR SPRINGS
One-piece garage door springs can be installed in a few hours with common household tools:
Download installation guide ![]() STEP 1![]() STEP 2SELECT THE CORRECT INSTRUCTION SET (A OR B) FOR THE SPRING COMBINATION PROVIDED WITH YOUR HARDWARE. STEP 2A - FOR USE WITH HOOK-END SPRINGS ![]()
Single Hook-End Spring
Install spring hook through the U bolt. Stretch spring up and hook over lower bushing on kicker as shown. If hooks are not in line, twist spring in the direction it turns easiest. Attach Spanner with bolt and nut on each end (see drawing). Repeat on opposite jamb.
Double Hook-End Springs
Install two springs by their hooks through the U bolt. Stretch springs up and hook over lower bushing on kicker as shown. If required, twist springs in the direction they turn easiest to line up hooks. Insert 1/4" x 5/8" bolt and nut for safety lock as shown. Repeat on opposite jamb. ![]() ![]()
Single Clip or Plug-End Spring
Install "C" hook through the U bolt. Install other hook over the lower bushing in kicker, as shown. Attach spring to lower hook. Apply the plate and keeper ring according to sketch & instructions, then stretch to connect to upper hook. Apply plate and keeper ring. Repeat on opposite jamb.
Double Clip or Plug-End Springs
Install "W" hook through the U bolt. Install other hook over the lower bushing in kicker, as shown. Attach two springs to lower hook and add plate and keeper ring, as shown. Stretch springs to connect to upper hook. Add plate and keeper ring. Repeat on opposite jamb. ![]() SPRINGS SHOULD BE STRETCHED ENOUGH TO HOLD THE DOOR UP AGAINST THE HEADER IN THE OPEN POSITION, BUT THE AMOUNT OF STRETCH SHOULD NOT EXCEED 2" AT ANY TIME. If a spring produces excessive noise when door closes, (a) brace door open (b) unhook spring at kicker and (c) twist the end of the spring 180 degrees IN THE DIRECTION IT TURNS MOST EASILY. Hook Spring on kicker and put bolt and nut in place. STEP 2CFOR SPRING ANCHOR A certain amount of pre-stretch of the springs is required to keep the door snug against the header when open. At no time should there be more than 2" of pre-stretch. There are two different methods to do this with the same basic hardware:
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