Accessing Pot to Clean on Cambridge A&R A60

Looking to thoroughly clean a slightly noisy pot on the cambridge A&R A60. I have been using contact cleaner and trying to put it down the small holes in the casing, but don't, think it is penetrating deep enough. To access the Volume pot and give it a thorough clean, do i need to just remove these circular metal casings, using small pliers to bend back the metal attachments? Please see the photo for reference. Thanks!!
 

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