Step 1. Remove the insole from each shoe.
Step 2. Below the insole is a “trap door.” Lift up the door and unscrew the spring with a Phillips screwdriver. Use caution not to strip the screw. Note the orientation of the spring before removing.
Step 3. Separate the spring from the shoe.
Step 4. Add the coil cover to the top of the spring. Coil Covers are marked “left” and “right.”
Step 5. Re-attach the spring in EXACTLY the same orientation as the old spring. Tighten as much as you can without stripping the screw. Note: Z-CoiL springs can be adjusted in 90 degree increments to adjust for pronation. Turning the coil will affect the resistance on the inside/outside of your feet and may cause under or over pronation. The factory position is shown below:
Step 6. Call a Z-CoiL Dealer or the Z-CoiL headquarters with any questions @ 800.268.6239