Carefully work the old check spring out of the collar as illustrated by Photos B and C below. If you grab the part of the
spring that the thread runs over, and push inward and upward at the same time, the spring will start to come out of
the base, as shown in photo B.
Once the check spring has been removed, you will need to remove the outer parts of the tension control for a
thorough cleaning. Clean disks with rubbing alcohol, and inspect for any spots of oxidation or rust that may have
developed – if any are noted, the entire tension control unit should be replaced. The base of the tension unit should
also be cleaned to remove any oil build-up or lint.
To install the check spring, begin by hooking the “U” shaped end arm through the slot in the base.
Tension Control Components
Hooking end of spring through slot
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