How to Install One-Piece Garage Door Extension Springs

What You'll Need

The E900 Hardware for one piece garage doors can be installed in a few hours with common household tools:

• Hammer

• Impact wrench

• Slotted screwdriver

• Prop stick


Step 1

Step 2

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.

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Insert 1/4" x 5/8" bolt and nut for safety lock as shown.

Repeat on opposite jamb.

Step 2B

FOR USE WITH CLIP-END OR PLUG-END SPRINGS

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 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.

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.

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 2C

FOR USE WITH HOOK-END SPRINGS

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:
 

1. Using a heavy screwdriver as shown, force down the lever plate. Raise or lower the upper nuts, with screwdriver still in place as required.

2. The second method is to raise or lower the upper nuts with a wrench.

Prop door into fully open position. Make sure to tack with a nail to prevent prop from sliding.