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11
To Increase Spring Tension:
Move the door to the fully open position and place clamps on the guides to prevent door from closing. Using a large
pipe wrench, grip the tensioning hex plate and rotate the ratchet gear assembly in the direction indicated above until
an audible “CLICK” is heard (one gear tooth). Operate the door to determine if the spring tension increase was
sufficient. Repeat spring tension increase procedure until door is properly balanced.
To Decrease Spring Tension:
Move the door to the fully open position and place clamps on the guides to prevent door from closing. Using a large
pipe wrench, grip the tensioning hex plate and remove the spring tension force from the pawl. Grip the pawl
retention screw and pull the pawl in the direction indicated above to keep it disengaged. Slowly release spring
tension held with the pipe wrench, allowing the ratchet gear to begin to rotate in the direction indicated above. The
spring tension will rotate the gear in the proper direction. Once the stop face of the previously engaged tooth has
passed the tip of the pawl, release the pawl to allow it to engage the next tooth. Operate the door to determine if the
spring tension decrease was sufficient. Repeat spring tension decrease procedure until door is properly balanced.
STEP #12e: Once spring tension has been adjusted and the door is properly balanced, lock the pawl in position by
tightening the pawl retention screw until it penetrates the bracket. Test that the pawl is locked in position by
attempting to add one(1) “CLICK” of tension. If properly locked, the ratchet gear will not be able to rotate. If
ratchet gear rotates, adjust tension back to previous position, verify that the pawl retention screw is lined up with the
hole in the bracket, and tighten the pawl retention screw. Return to STEP #10 in this manual and continue with the
door installation.
If pawl retention screw does not penetrate hole in Tension- Pro
bracket, spring tension could be released during door
operation, allowing door to close rapidly, possibly causing
severe or fatal injury.
The pawl retention screw, if not properly aligned with the hole
in the Tension-Pro bracket, can cause pawl to disengage. To
prevent severe or fatal injury from unexpected release of
spring tension, do not drive retention screw with screw gun.
To prevent severe or fatal injury, keep fingers, hands, arms
and loose clothing away from all moving mechanisms.
WARNING
WARNING
WARNING