Posted by Steve Lehman on July 11, 2009 at 20:19:00 from (70.13.177.108):
The hydraulics on my Oliver 70 (M & W add-on pump mounted behind the governor - live hydraulics)are making a rattling noise. I assume that this is due to overheating of the fluid (using all-season hydraulic oil). Am I using the correct oil in this, or should I be using a straight weight oil? Their is a 3/4" suction line that goes from the reservoir to the pump, and a 1/2" pressure line that goes to the valve. The valve is mounted on top of the reservoir, so I assume that the oil passes through the valve and dumps back into the reservoir when it is not used for lifting. Is it possible that the fluid is not dumping back through the valve fast enough? There is another inlet on the reservoir - I could run a bypass to that inlet and regulate it with a valve when I am not using the loader. I would appreciate any ideas. Thanks.
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