Important: A new SIR coil assembly will come pre-centered.
- Hold the coil assembly with the bottom up.
- While holding the coil assembly, depress the spring lock in order
to to rotate the hub in the direction of the arrow until it stops.
- The coil ribbon should be wound up snug against the center hub.
- Rotate the coil hub in the opposite direction 2 1/2 revolutions.
- Release the spring lock between the locking tabs.