hydrolic oil questions

Dozer Guy · Nov 3, 2008

What is the differance between hydrolic oils? Dipstick says EXAMPLE:"use only JCB hydrolic oil only"... Is it just a sales pitch to buy there oil when the tractor is new? Isnt all hydrolic oils about the same? On the back of the 5 gallon bucket it says "compatable with J/D, A/C, M/F, ect. ect.. BUT, does not JCB.. What is the differance? THANKS, Larry

Rusty wheel · Nov 3, 2008

A lot of the differance has to do with the kind of seals in the system. Seals are made of butyl rubber and some are viton. Viton seals are a lot more expensive that butyl. Also, some oils are fire resistant and some are not. The recomendation could be a sales gimmick if the dealer gets a kick-back. You'd probably be better off using the recommended oil unless you can find other oils that are compatable with your system. Mobile dte 25 is one of the best oils I've found and it comes in light, medium, and heavy viscosity.............rw

Anonymous-0 · Nov 3, 2008

I don't know what it is about JCB oil. We have a JCB forklift at work. The tranny started giving us problem. Refilled it with JCB oil and haven't had any trouble since.

buickanddeere · Nov 3, 2008

Depends if it's a straight hydraulic system. Are there gears? What type of gears? Hypoid gears require oil with higher shear stress resistance and pressure point additives.
Are there wet clutch plates? The oil has to be compatible with wet clutches. Wet clutches depending on the design need either no, some or lots of friction modifiers. Some clutches are designed to grab hard, some slip a little and others a more gradual engagement.
So unless your wall has a lubrication engineer degree on it with your name printed upon it. Use the oil specifications the equipment manufacture states.

dej(Jed) · Nov 4, 2008

Hi- I have a Lubrication Engineers Degree hanging on my wall , but I don't like to tell too many people. There are so many gifted and sensitive people on this site that I don't want to dismiss their knowledge base. I am certain that someone will already have taken offense at my comments so far. Hydraulic oils come in three weights, ISO 32/46/68. These are based on viscosities. Your OEM will tell you what you should be using and what is compatible.

(fuelsandlubestechnologies.org)

Anonymous-0 · Nov 4, 2008

Some oils have detergent that suspend water, some don't.

JOE FARMER · Nov 4, 2008

rusty wheels is right, i have worked for lindberg cylinders for the past 18 yrs;rebuilding and manufactoring cylinders for
custom applications as well as dreging eqiupment;and mostly steel companies; viton seals have almost double the temp. rating as butyl {STANDARD} BUT I HAVE USED BOTH TYPES WITH A VARIETY OF FLUIDS FROM HYLDRALIC OIL TO WATER GLYCOL TO VEGI OIL IN FOOD SERICE TYPE CLYINDERS

hydrolic oil questions

Dozer Guy

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Rusty wheel

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Anonymous-0

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buickanddeere

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dej(Jed)

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Anonymous-0

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JOE FARMER

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