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Old 10-21-2020, 07:00 PM   #1
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ZF 80-1 transmission

Our trawler has a ZF 80-1 transmission and I am preparing to change the ATF fluid. Noticed there is also a transmission filter that screws into the top of the casing with an Allen bolt. How often should I be changing the filter?
Every fluid change?

Thanks everyone

Brent
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Old 10-21-2020, 07:06 PM   #2
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Okeedokee
Just found the ZF manual. Actually my wife found it
Manual states change filter every time you change fluid.
Now I just need to find the filter.

Brent
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Old 10-21-2020, 08:45 PM   #3
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The ZF " filter" is a cleanable screen. I bought a second one just so I could clean it later but it really is quick & easy task. If you are pumping the bulk of the fluid out the filter housing is a good place to get a large part of it. The drain plug is tough to get much of a pan under it and be able to get it out... at least it was in my case.
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Old 10-21-2020, 08:50 PM   #4
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Yep, the filter is cleanable. Rinse in some diesel and blow out with compressed air. No need to replace. Usually cap o-ring can be cleaned up and re-used. Note the filter is on the suction side of the pump.
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