JD MC Oil Type for Hyd Cylinder

BigRedEd · Apr 20, 2021

Hello,
I am not having any luck finding the type of oil that goes in the reservoir for the hydraulic cylinder that lifts the blade?
The manuals don't seem to list it or I am looking wrong.
Thanks for any help

Case Nutty 1660 · Apr 21, 2021

My guess would have been they originally used 10 or 20 wt engine oil at that time it was built,, later ATF was the norm and of todays oil I would think you would be fine with JD hyd oil,, Hy-Guard, but this is just a educated guess
cnt

Jim.ME · Apr 21, 2021

Good guess.

Don't know what manuals you have to look at but here is the page from the MC Operator's manual with lubrication info.

10W was called for at the time, Hy-gard, or an equivalent, will be fine. Also see your post on the John Deere Forum to get a free copy of the manual.

BigRedEd · Apr 21, 2021

Thank You very much
the 10W just caused a mind block.

Lavoy · Apr 21, 2021

AW32 or AW48 straight hyd oil, or 10wt or 20wt non-detergent engine oil. They don't like HyGard, tend to howl more, and you lose 100-200psi. Won't hurt anything, but no need to buy HyGard when straight hyd oil is cheaper, and no gain to HyGard vs hyd oil.
Lavoy
JDCRAWLERS COM

Jim.ME · Apr 21, 2021

I defer to Lavoy, go with his recommendations. He has years of experience and repairs the MCs and other JD crawlers.

JD MC Oil Type for Hyd Cylinder

BigRedEd

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Case Nutty 1660

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Jim.ME

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BigRedEd

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Lavoy

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Jim.ME

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