Retension Knobs

Description

WARNING: The end user must verify that
the retention knob received is correct for
the machine. Different retention knobs
may look similar, but they are not
interchangeable. The use of the wrong
retention knob can cause serious
damage and possible injury.
Retention knobs should periodically be
inspected. If there are signs of excessive
wear or damage, the retention knob
should be replaced.