vacuumkid47
Logan,
Yes, they are. Here is one example.
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Kirby redesigned the fan case during production because people were complaining of the machine shutting off when adjusted to a lower height, so what they did was redesign both the fan case and the part of the nozzle where it attaches to reduce such a chance. Mine thus has the revised fan case. They also revised the front wheel bracket shaft to allow the machine to sit up higher for the then-trendy shag carpeting, which also led Kirby to develop the Shag King accessory that first came out for this machine at the tail end of its run (February 1973).
~Ben[this post was last edited: 5/28/2020-15:16]