replying to nestork , toolworker wrote:
For the record -

Ignore those Philips head rivets.

Unzip the lining. There is what looks like a flat metal bearing in a
channel at the inside of the wheel axle. Pull it out of the channel with
a long nose pliers. This exposes a real Philips head screw which is the
wheel axle. Unscrew and pull it out and the wheel can be rmoved.

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