Question about Garden
Retractable things - hoses and cables and even the mower recoil starter rope are invariably powered by a clockspring.
One end is anchored to the stationary casing and usually the centre is anchored to the rotating part. The spring is pretensioned by an amount sufficient to retract the hose, rope or cable all the way and then pulling out the rope, etc. will further tension the spring. The spring end is usually the part that breaks or the anchor.
The spring should be treated with respect as it is usually a great deal longer than expected and should you dismantle a troublesome unit it is very important to keep a firm hold on it because if they are allowed to unravel it is violent and there is a couple of sharp ends...
When a retractable unit ages it often becomes sluggish and it usually helps to wash and dry the spring and lubricate with a few drops of light machine oil or some graphite dust.
Posted on Sep 19, 2020
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