Comparison DK45 vs DK50 vs NX4510
- Thread starter SwingOak
- Start date
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CJONE
Veteran Member
Yea, I just don't know how to explain to people how critical it is to keep clean fluid. These systems are filtered 2 times once on the suction and once after it goes through the powersteering circuit. The filters clean down to 5-10 micron or so and the clearances in a typical hydrostat are .0005 or tighter So you have particles that measure .0004 going through .0005 gaps does that cause wear? Yea you bet it does. Let alone what it does to brass slipper shoes on the pistons. I filter all the Hydrostatic systems I build down to 3 micron just to keep the wear down. If I can't get 3-5 years out of a hydrostat 24 7 I find out why. Anyway if you plan on keeping your tractor for 5000 hours + keep the hyd fluid clean. Your hydrostat will thank you. CJ
murphy1244
Super Star Member
- Joined
- Nov 25, 2011
- Messages
- 16,335
- Location
- Ohio
- Tractor
- Kubota 1120 RTV Kioti DK-40, MF-135, Ventrac 4500Y
If it feels good, do it.:thumbsup:
k0ua
Epic Contributor
It did feel good
I was suprised how dirty it was, compared to the clean MobilFluid 424 I poured in it.:thumbsup:
The small amount of fluid that came out when I changed the hydraulic and hydrostatic filters did not look bad at all at the 200 hour filter only change.
I know that this has been conversed to death on various threads here, with proponents on both sides, but I can only attest to what the fluid out of mine at 50 hours looked like, and it was not pretty.
CJONE
Veteran Member
It did feel good
I was suprised how dirty it was, compared to the clean MobilFluid 424 I poured in it.:thumbsup:
The small amount of fluid that came out when I changed the hydraulic and hydrostatic filters did not look bad at all at the 200 hour filter only change.
I know that this has been conversed to death on various threads here, with proponents on both sides, but I can only attest to what the fluid out of mine at 50 hours looked like, and it was not pretty.
I called and talked to a tech at Mobile and the 424 oil is good through 3500 to 4k hours. So I will be changing filters and sampling to find out how far I should go with out changing. Just thought you would like to know! CJ
k0ua
Epic Contributor
Thanks.
I think the first change is the most important one, and I am glad it is behind me.
grm61
Platinum Member
It did feel good
I was suprised how dirty it was, compared to the clean MobilFluid 424 I poured in it.:thumbsup:
The small amount of fluid that came out when I changed the hydraulic and hydrostatic filters did not look bad at all at the 200 hour filter only change.
I know that this has been conversed to death on various threads here, with proponents on both sides, but I can only attest to what the fluid out of mine at 50 hours looked like, and it was not pretty.
I poured my 50hr hyd oil into the white buckets that my new hyd fluid came in, they sat in my shed for a couple weeks before I dumped them at the recycle, some of the crap had settled out of the oil and is in the bottom of the buckets, I'll snap a couple pics this weekend and post them for the non believers.
grm61
Platinum Member
It did feel good
I was suprised how dirty it was, compared to the clean MobilFluid 424 I poured in it.:thumbsup:
The small amount of fluid that came out when I changed the hydraulic and hydrostatic filters did not look bad at all at the 200 hour filter only change.
I know that this has been conversed to death on various threads here, with proponents on both sides, but I can only attest to what the fluid out of mine at 50 hours looked like, and it was not pretty.
I poured my 50hr hyd oil into the white buckets that my new hyd fluid came in, they sat in my shed for a couple weeks before I dumped them at the recycle, some of the crap had settled out of the oil and is in the bottom of the buckets, I'll snap a couple pics this weekend and post them for the non believers.
k0ua
Epic Contributor
I poured my 50hr hyd oil into the white buckets that my new hyd fluid came in, they sat in my shed for a couple weeks before I dumped them at the recycle, some of the crap had settled out of the oil and is in the bottom of the buckets, I'll snap a couple pics this weekend and post them for the non believers.
Should we call them "Fluid-Deniers?"
grm61
Platinum Member
Also, as long as we are talking about oil, another grey area...I have 98 hours on my tractor, I changed the engine oil at 50, the manual says change at 50, then it had a dot on 100, 200, etc...Do I need to change it again at 100, then every hundred??
Your interpretations please:confused3:
Thanks
Your interpretations please:confused3:
Thanks
