McNaughtans gas spring services cover cylinder pressure adjustment, both to recover lost force and to reduce it. The work is done on the spring you already have fitted, without replacing it, across forces from 100 to 2200 N.
How to choose the service
Start from whether the lid falls short or overshoots: if it no longer holds, you need a recharge; if it opens too hard or is a struggle to close, you need a discharge. Then read the spring's current force, usually printed on the cylinder, and pick the band that contains it. If the spring leaks or the rod is scored, adjusting the pressure will not fix it and the part needs replacing.
Decide whether you need more or less pressure.
Read the force printed on the cylinder.
Pick the newton band that contains it.
Rule the service out if there is a leak or a damaged rod.
Frequently asked questions
How long does a recharged spring last?
It recovers its original force and behaves like a new one from then on, as long as the rod and seals are in good condition.
Can I ask for a force other than the original?
Yes. It is the usual request when the lid has changed weight, for instance after adding a lining or mounting equipment on top.
