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Case Tractors Discussion Forum
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530 gear grinding, hydraulic output

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530Guy

12-28-2006 07:43:43




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2 questions - does anyone know why the gears keep grinding on our early 530 with case-o-matic when shifting? How to fix? Also - what was the original hydraulic pump output in gpm? Thanks - 530Guy.




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Roger (Mi)

12-29-2006 05:25:48




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 Re: COM gears grinding? Lower RPM's in reply to 530Guy, 12-28-2006 07:43:43  
Some gear grinding on Caso-o-matic drives is just the nature of the beast. When the Caso-o-matic multiple clutch disks are disengauged by pushing down on the clutch pedal, some friction remains. A slow idle and a quick hand can reduced the gear grinding. The Case-o-matic drive and hydraulics do share the same oil supply from the torque-tube. They do not share the same pump. The best way to check the three point lift cylinder for leakage is to lift an implement. It it settles down within an hour, the lift cylinder seal is defective and will need to be replaced. Also, the leaking seal will cause differential oil level to rise as oil is being transferred from the torque-tube into the rear end. The best way to check the condition of the hydraulic pump is to do a pressure check. Plumb a pressure gauge into a remote plugin or a fitting on the interlock block at the control valve. The pressure should read at or very near 1400 PSI. If it doesn"t, the pump is worn out and will need to be replaced.

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530guy

01-02-2007 17:58:01




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 Re: COM gears grinding? Lower RPM's in reply to Roger (Mi), 12-29-2006 05:25:48  
In the instruction manual it says 90w oil in differential. We have regular hydraulic oil. Should we change diff. oil?
Also where are all the oil level dipsticks? I know of one on top of diff. housing and one on right side below gas tank for case-o matic and one for motor. Are there more? What dipstick regulates 3-pt and hyd? Should case-o-matic be checked idling or shut off???



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Roger (MI)

01-03-2007 08:38:15




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 Rearend = 90W, Torque tube = TCH in reply to 530guy, 01-02-2007 17:58:01  
The dip stick on the transmission housing near the driver's seat is for the rearend (90W). The dip stick on the torque tube is for the TCH (Torque Converter Hydraulics) fluid level. Those are the only oil/lube checks for the drive train. The torque tube oil is for the hydraulics and Case-o-matic. No need to have the engine running to check the torque tube oil level.



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530guy

01-03-2007 08:55:30




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 Re: Rearend = 90W, Torque tube = TCH in reply to Roger (MI), 01-03-2007 08:38:15  
Thanks



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JGarner

12-28-2006 11:07:35




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 Re: 530 gear grinding, hydraulic output in reply to 530Guy, 12-28-2006 07:43:43  
Check your fluid level in the differential. I believe on the COM (COM experts chime in here) that the hydraulics and COM share fluid. If the hydraulic lift cylinder seals are leaking, it would make lifting slow due to the leak an dlow fluid level in the hyd. section and poor performance from the COM due to low fluid levels in the hyd. section.

If your differential fluid levels are high you are probably getting hyd. fluid leaking to the diufferential housing.

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