hydro gear 2800 Oil Change Problem

[clubairth]

I have #123292 for the big black brace and #120838 for the smaller yellow brace.
It's odd because the small yellow brace is called a clutch cover?
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[turboawd]

I have #123292 for the big black brace and #120838 for the smaller yellow brace.
It's odd because the small yellow brace is called a clutch cover?
.
.
.

Maybe it protects from backing into something underneath.
Thanks