Can someone explain to me why there is a hydraulic filter and a HST filter on the b2601 while there is just 1 oil tank? I don't know much about mechanics and it sounds very strange to me there there are 2 filters for the same oil.
Oil filters on b2601
- Thread starter awesome
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One filter is in the suction line to the main oil pump driven by the engine. The other is for the Hydrostatic transmission, if your tractor is so equipped. Hydrostatic transmissions operate by means of a hydraulic motor driven by pressure from the pump on the engine. Hydraulic motors are more sensitive to debris than are cylinders, and the filter for them is typically a much finer filter than what is typically necessary for a cylinder, e.g. the lift, or the FEL (if equipped).
More plainly, the Suction filter cleans all the oil leaving the transmission going to the main pump. The HST filter cleans the oil coming from the output of the main pump. The discharge of the main drive hydraulic motor goes back to tank/housing
More plainly, the Suction filter cleans all the oil leaving the transmission going to the main pump. The HST filter cleans the oil coming from the output of the main pump. The discharge of the main drive hydraulic motor goes back to tank/housing
Get the WSM and it’ll show the hydraulic oil flow in a schematic and you’ll see how it all works. I never looked at the manual for a 2601 (haven’t needed too, yet) but it’s my guess the charge pump for the hydrostatic has its own filter for a good reason.
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