accelerator, brake, clutch | foot
To stop the machine push the foot pedal.

bicycle | organ, piano | wah/wah-wah
Some guitar players tend to overuse the wah-wah pedal.

press, push, put your foot on, step on, use, work
Her foot was working the pedal of the sewing machine.

release, take your foot off

control sth, operate sth

boat, car, cycle | bin

on a/the ~
with one foot on the pedal

fast, furiously, hard, like mad, madly
He pedalled furiously up the hill.

slowly | away
She pedalled away as fast as she could.

along, down, up
He pedalled along the lane and up the hill.