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Bommer Spring Pivots - 7100 and 7300 Series Pivots

How To Reactivate Spring Tension for Bommer Door Pivots.
If the pivot fails to close the door in one or both directions, the pivot unit can be reactivated as follows:

1. Remove pin from Tension Collar.

2. Remove the Pivot from the door and bracket.

3. Viewing the Pivot from the threaded end, (see Figure " 1 ") and with the mounting bracket toward you, turn the Tension Collar to the left (counterclockwise) until it comes to a stop. Hold the Tension Collar in this position while turning the threaded spindle to the right (clockwise) until it comes to a stop.

4. Place the threaded spindle in a vise, gripping it on the 1/2" Diameter (see Figure " 2 ") so the spindle is horizontal and mounting bracket is still toward you.

5. Place a Spring Hinge Tension Lever Adjusting Tool (you could use a 2" - 3" long finishing nail, ice pick or just about any steel object that will fit into the Adjusting Hole) in Tension Collar Hole near the cover plate stop (A) and turn the collar toward you (counterclockwise) until spring tension is felt.

Insert the tension pin into the hole in the Tension Collar close to the stop (A) on the cover plate. Pin must be inserted fully into the hole with the shoulder of the pin against the Tension Collar. Allow the spring tension to rotate the collar and tension pin toward the stop (A) until the pin contacts the stop.

6. Reinstall the door.

  Bommer 7100 and 7300 Series Pivots
Bommer Hinge Number Description
Bommer 7112 Surface Mount Spring Door Pivot Hinge for Door up to 36 Inches Wide, 2-1/2 Inches Thick with a Maximum Door Weight of 75 lbs.
Bommer 7114 Box Clamp Mount Spring Door Pivot Hinge for Door up to 36 Inches Wide, 1-1/8 Inches Thick with a Maximum Door Weight of 75 lbs.
Bommer 7122 Mortise Mount Spring Door Pivot Hinge for Door up to 36 Inches Wide, 2-1/2 Inches Thick with a Maximum Door Weight of 75 lbs.
Bommer 7312 Surface Mount Spring Door Pivot Hinge for Door up to 36 Inches Wide, 2-1/2 Inches Thick with a Maximum Door Weight of 75 lbs.
Bommer 7322 Mortise Mount Spring Door Pivot Hinge for Door up to 36 Inches Wide, 2-1/2 Inches Thick with a Maximum Door Weight of 75 lbs.
Bommer 7313 Box Clamp Mount, Both Door and Jamb, Spring Door Pivot Hinge for Door up to 36 Inches Wide, 2-1/2 Inches Thick with a Maximum Door Weight of 75 lbs.
Bommer 7314 Box Clamp Mount on Door Spring Door Pivot Hinge for Door up to 36 Inches Wide, 2-1/2 Inches Thick with a Maximum Door Weight of 75 lbs.

bommer spring pivots adjustment diagram



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