Disassembling the Curtis 1203 PMC Controller for Cleaning and, if needed, Trimpot Adjustment:

These controllers are widely used on electric walk- behind and rider- style sweepers and scrubbers.

By the way, you are reading this for amusement. Therefore, if you actually attempt these procedures, you do so at your own risk!

Get ready to attack!

Pop the top!

Clean this!

Adjust this

More to come, I hope!

Updated: 28 March, 2006