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Case Tractors Discussion Forum

hydraulic cylinder seals for Case DI w/ Lull front loader

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dieseldave56

04-22-2008 03:05:56

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Great , share the knowledge!! I just aquired this Case Model DI w/ Lull front end loader. The tractor is 100% complete and working. But.... isn't there always a BUT? But I haven't any information i.e. service/repair/parts manuals for the Lull equipment. (1)So I need those or information leading to the aquisition of said manuals. (2) The previous owner, God rest his Soul flushed and cleaned the hydraulics system. Completely disassembled everything , added a Parker hydraulic filter on the low psi return line and added hi detergent ATF thru the system . Then flushed that out with AW 32 or 46 till the fluid was clear. Obviously changed the filter again. I understand that Case recommended SAE oil (viscosity varied depending on the ambient temperature of the region or season) in their hydraulics. I see some seepage or slight weeping from the top of the Lull cylinders at the packing gland. So the question is should I now replace the AW hydualic fluid with the SAE motor oil ( probably 10-30W)? OH , if anyone has any insight or experience with the Case D/DI/DC ect. please feel free to contact me. This is my first tractor, the darn thing is my same age and is in much beter shape. Ya gotta love steel. Thanks in advance, dave

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rminont

04-22-2008 04:51:26

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Re: hydraulic cylinder seals for Case DI w/ Lull front lo... in reply to dieseldave56, 04-22-2008 03:05:56

Your loader is probably about the same as the Lull loader on my MM UTIL. I put new V packing in the glands on my cylinders. The packing should be available from hydraulic shops or power transmission shops. You might need a "hook and pick set" to get the old packing out.
The new V packing fixed my cylinders right up even though the rods were a little rough.
I've been retired from any restorations for 10 years now so I can only go from a failing memory on this stuff.
Bob

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