I would visually inspect all the screws and bolts on the pedal assembly for broken or cracked parts, but I suspect that the spring may be catching on something. It may be a simple fix with some lithium grease.

Thanks for the advice. I'm wondering if it's possible to take the spring out of the tube? Is there a way to go about disassembling the thing without a bunch of springs and washers popping out? I'm afraid I won't know how to put it back together.

Use your camera on your phone to document each disassembly step, then reverse the process. The pull rod is usually threaded at the bottom to a plunger that pushes down on the spring. The toe of the pedal is connected to the plunger (or another rod connected to the plunger from the opposite end). The plunger is what keeps the spring in place.

Cool, thanks. I'll give that a go. I just can't live with that squeak. Otherwise it's a cool stand. I'm liking it.

Cheers.