LINE 6 HELIX FLOOR Adjustment

Expression Pedal Tension Block and Axle Kit

The tension block provides the mechanical resistance necessary for the pedal to remain stationary at any point in its sweep. Over time, the composite material can wear down or compress, causing the pedal to become 'floppy' or fall forward. Replacing the block or the associated friction shims restores the physical resistance required for expressive control.

Expression Pedal Tension Adjustment Bolt

This 3/16 inch hex-head bolt passes through the chassis to apply pressure to the internal friction plates. If the threads are stripped or the bolt has vibrated loose, the pedal will lose its 'stay-put' capability. In cases where the user cannot tighten the pedal, the bolt or the receiving threads in the tension assembly have typically failed.

Optical Shutter Vane Assembly

If the pedal is physically loose, the optical vane attached to the axle may become misaligned with the infrared sensor on the PCB. This results in software 'drift' where the unit cannot be calibrated to 0% at heel-down because the vane is not correctly interrupting the light path due to mechanical play in the axle.