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My dozer came with a Hastings HF985 filter on the return line. I can't find any specs at all on this thing. What do I look for in a hydraulic filter? Do I have to worry about flow rate? media? etc…
I see that Grainger has a Baldwin cross for it but how do I know this is the right filter at all?
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I have been using a WIX 51551 which is a 10 micron paper filter. If you cross reference the Hastings HF985, you get a WIX 51614. Same thread size but it is steel mesh with a much larger micron sizing. The gasket size of WIX 51551 may work but as to which filter you should use I yield to Bob Rooks.
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Grizz,
What you have there is a suction side strainer element. Wrong application for that.
I use the Zinga AE-10 from Surplus Center, but it also crosses over easily to other brands as well.
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See…this is why I ask such dumb questions. I mean, this is my first tractor of any kind. I don't know what I don't know. On top of that I no longer trust anything about this machine.
That's two votes for a 10 micron filter. Good enough for me. Glad I asked. Glad there is a group of people out there to help. Glad Bob Rooks did all that book learnin' so for our benefit.
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Grizz, your questions are not dumb at all. The experiences you are having are unique and reflect on the previous owner (not the dealer). In part it's irresponsible owners that give machines bad names.
10 micron return line filters are pretty much the standard for most hydraulic systems, only with exceptions for the more sophisticated systems such as aircraft.
Glad I'm in a position to help.
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I just realized (don't know why I didn't look before) that it has the same suction screen filter on the return line of the shuttle clutch. I assume that there should be a regular 10micron filter there too. But here is my question: How do you remove that filter without taking a bath in oil. As soon as I start to loosen the filter oil starts pouring out. And I mean pouring fast. The accumulator is right next to this filter. Is the oil under pressure somehow? With the engine off I cycled the shuttle shift back and forth thinking it would relieve pressure but it didn't seem to make a difference. :shrug:
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The accumulator stores about 40-60 pounds of pressure against the oil in the shift circuit. You should be able to draw down that pressure by shifting the lever quite a few times without the engine running. Listen closely to see if you can hear the servos actuating.
If were my dozer, I'd have a pressure gauge for that. But then you know how I am about gauges – I like to know what's going on.
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(and yes I double checked it through other means)- You must be logged in to reply to this topic.