Grammer PRIMO M Mode D'emploi page 24

Maintenance
24
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Dirt can impair the function of the seat,
So make sure you keep your seat clean.
Upholstery does not need to be removed from
the seat frame for cleaning.
770
pressure washer!
When cleaning the upholstery, make sure the
upholstery is not soaked.
Use standard commercially available
area.
: Do not clean the seat with a
on a small, concealed
GB