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Anyone know the full service steps for Nautilus NS-300 gym?
January 12, 2026, 08:19 PM
ChuckFinleyAnyone know the full service steps for Nautilus NS-300 gym?
The shop in town that sold this and used to come service it no longer does so. I can't find online a comprehensive service protocol.
It's starting to judder as the plates slide on the guide rods. I've cleaned and lubed the guide rods and the tension and cables with the pulleys seems correct, but I expect that there is more going to it than just eyeballing it.
Hoping someone here can help?
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"Of all tyrannies, a tyranny exercised for the good of its victims may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end, for they do so with the approval of their own conscience." -- C.S. Lewis
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Trying to simplify my life...
January 13, 2026, 07:14 AM
ChuckFinleyVery helpful, thank you. I am still left to wonder if anyone does this on their own machines, or used to work in this field, and can provide a narrative of their experience, what to look for, what things should look like.
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NRA Endowment Member
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"Of all tyrannies, a tyranny exercised for the good of its victims may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end, for they do so with the approval of their own conscience." -- C.S. Lewis
January 13, 2026, 08:14 AM
Tn226I have a machine very similar to yours. I have found that occasional general cleaning is adequate except for the guide bars. I clean mine quarterly (admittedly may be overkill). Make sure they are absolutely free of anything and use silicone lube sparingly. Mine work best when they are nearly dry
January 13, 2026, 09:23 AM
ChuckFinleyquote:
Originally posted by Tn226:
I have a machine very similar to yours. I have found that occasional general cleaning is adequate except for the guide bars. I clean mine quarterly (admittedly may be overkill). Make sure they are absolutely free of anything and use silicone lube sparingly. Mine work best when they are nearly dry
Thanks!
_________________________
NRA Endowment Member
_________________________
"Of all tyrannies, a tyranny exercised for the good of its victims may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end, for they do so with the approval of their own conscience." -- C.S. Lewis
January 13, 2026, 11:55 AM
4MUL8RJudder. This speaks of what we call stick-slip friction. We formulate to avoid such noise vbration and harshness (NVH).
To avoid NVH in slow speed sliding conditions, the near static friction must be lower than the dynamic friction.
If the plates are not moving (static) and you invite them to move, high static friction works against your invitation. The cycle of sticking then slipping then sticking then slipping can create NVH.
Seek to reduce near static friction in your choice of lubricant.
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Trying to simplify my life...