I'm talking about the shocks on the "stair stepper" exercise machine
but they seem to be the same as those on a car. Anyway, what causes
shocks to wear out, to lose their resistance, when there's no evidence
of fluid leakage? Thanks.
You are probably not talking about an oil filled shock absorber
like your car's undercarriage has. You are talking about a gas
strut filled with an inert gas (probably nitrogen) often used on
tool box lids, station wagon rear doors. When the gas escaped,
you didn't see the puddle or the cloud.
Keep the whole world singing . . . .
Basically they just wear out. They work by pushing air or oil through
some sort or restriction. There is a piston that does the pushing and
usually the seals on the piston or restriction wear and they loose their
resistance. Finding replacements could be a problem, but try the company
that made them.
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