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what next · 05-11-2020, 12:17 PM

So I did a service on hyd system changed oil and both filters on my 2010 Spartan frame ISL cummins. The internal filter is held down by a wingnut and a spring, I tightened the wingnut down all the way, is it some sort of relief valve should spring only be half compressed?

Breezy2006 · 05-11-2020, 07:20 PM

It depends on the filter but since I just did this I think there just needs to be some tension on the spring, washer and wing nut so the oil is forced to be pumped through the filter and not underneath it. You do have a washer on top of the internal filter right?

757driver · 05-12-2020, 11:49 AM

Quote:

Originally Posted by what next

So I did a service on hyd system changed oil and both filters on my 2010 Spartan frame ISL cummins. The internal filter is held down by a wingnut and a spring, I tightened the wingnut down all the way, is it some sort of relief valve should spring only be half compressed?

If it is the Nelson 87610A filter then at the Spartan class years ago big Mike said to tighten the wing nut down all the way when changing the filter. Even though the wing nut is tightened down all the way the spring still has some compression room left for bypassing if and when necessary.

what next · 05-13-2020, 11:47 PM

Yes it is the 87610A and yes I have the washer on. It is tighten down all the way now and I guess I will leave it that way.

Stealth01 · 05-14-2020, 10:57 AM

When in doubt, call Spartan Support: 800-543-4277

Dav L · 05-14-2020, 02:02 PM

The spring is there for a reason. Typically to allow fluid flow bypass if the filters are completely clogged so as not to disrupt steering or cooling. So, that would say you don't run the nut all the way down. Likely half way. If the nut is nylock than for sure. I don't remember mine well enough to advise. But the correct answer is consult the service manual.

757driver · 05-15-2020, 01:02 PM

Quote:

Originally Posted by Dav L

The spring is there for a reason. Typically to allow fluid flow bypass if the filters are completely clogged so as not to disrupt steering or cooling. So, that would say you don't run the nut all the way down. Likely half way. If the nut is nylock than for sure. I don't remember mine well enough to advise. But the correct answer is consult the service manual.

The nut run all the way down stops where the treads stop not when the spring is fully compressed.