[TheForge] Fw: lubricants and hydraulics

[David E. Smucker]

Terry,  The answer is to pick one of the major oil companies line of 
lubricants and hydraulic  oils and use it in everything that falls within 
that API and/or SAE spec and rating.  They all list their ratings on the 
container.  (I am not suggesting that this means that you the same oil in a 
hydraulic system and a gear box -- unless the gear box is designed for that. 
Some tractors are designed this way.)

Manufactures list the required spec in their full service manuals.  If you 
don't have one of these check on line or go to your local dealer and look it 
up.

Large industrial companies such as I used to work for have their own 
internal standards set up by engineers and lubrication specialists.  In 
Alcoa we had a system we call the ML system for Machinery Lubricants.  We 
then assigned the correct lubricant or hydraulic oil for each machine, gear 
box etc.  Our purchasing department then when out with specifications and 
purchased to these specs and the incoming oils were assigned and mark with 
the correct ML number.  The craftsmen in the plants then knew which oil to 
put in which machine etc.  You can do something similar for you own 
equipment by cross referencing the manufactures specifications to API and 
SAE specs.

Dave
--------------------------------------------------
From: "terry l. ridder" <terrylr at blauedonau.com>
Sent: Tuesday, April 07, 2009 4:16 AM
To: <theforge at mailman.qth.net>
Subject: [TheForge] lubricants and hydraulics

> hello
>
>
> with the number of diesel and gasoline engines that have come to be part
> of my mechanical tools also a vast array of lubricants has also come
> along to take up shelf space. i use to purchase diesel engine oil by the
> quart now i purchase it by the 5 gallon bucket. 90w gear case is another
> one that i am purchasing by 5 gallon buckets. hydraulic oil is one that
> is really confusing. each manfucturerer wants you to purchase their
> hydraulic oil at some obscene usd amount per 5 gallon bucket. i thought
> that bobcat was bad with their hydraulic oil pricing out at $80.00 usd
> per 5 gallon bucket. kubotu super utd which is want it recommended for
> the kubuta bx2660 tractor is $130.00 usd per 5 gallon bucket. kubota is
> on the hairline edge of being in violation of the magnuson-moss warranty
> act. that is beside the point of this posting.
>
> it would seem that there is a simple common set of lubricants that one
> should be able to stock on hand that would meet all the various needs of
> all the equipment without breaking the bank or denting the budget.
>
> what have others done to keep their equipment lubricated as required and
> suggested while not have to stock a large number of different grades of
> lubricants.
>
> i do not see the logic in having three seperate machines each with their
> own gasoline or small diesel engine providing power to the hydraulic
> pump with id providing hydraulics to the rams which allow the machines
> to do what they do. since each machine will probably never to used all
> at the same time why not just one hydraulic power unit the quick
> disconnects and the separate hydraulic units that may be switched in and
> out are needed. why maintain three engines when one engine is all that
> is really needed.
>
> i have a 25 ton log splitter which i may position either horizontal or
> vertical. i have a 30 ton hydraulic press which basically was used by
> the previous owner to press bearing in and out. i have a hydraulic post
> hole digger ( this i may not keep, i have someone who is interested in
> the unit. )
>
> what have others done with having one hydraulic power driver unit and a
> number of hydrauic machines?
>
> i am enjoying being able to do some tinkering now. i am amazed at the
> vast array of different hydraulic oils out on the market. each making
> some unique claim concerning their product.
>
>
>
>
> -- 
> terry l. ridder ><>
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