Posted by Joe Oliver on August 18, 2009 at 15:50:17 from (4.224.63.152):
I have an Oliver 1950-51 industial 88. It has a Ware loader on the front and a Sherman model C-8 Power Digger on the back. It has a large Hydreco pump for the hydralics. I bought the old beast to keep around the farm and use it on the little digging projects that tend to creep up on a person. It does an ok job digging but the hydralics are a little lacking. The loader does a descent job lifting but the digger could use a little more power. I had the pump "looked at" and the guy said that the pump was in pretty good shape. I've up dated quite a few of the hoses. It has a transfer block that switches the hydralics from the loader to the backhoe. I notice that the digging slows down as the fluid gets hot which doesn't suprise me too much. I would expect the fluid to thin and lose a little punch as it heats up. It seems like its a low pressure, high volume system and some of the power is lost to the cylinders being worn and so my question is with the hydraulic fluid. I was wondering if these old systems were set up using a little thicker fluid instead of the 10 and 20 weight they sell for hydraulics today. I could see a thicker fluid keeping its power a bit more, but what other fluid can be used in the backhoe. I know some oils can cause the seals to possibly swell. I would appreciate any in put. Thanks Joe O
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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