Increase pressure on a M7060 with a LA1154 Loader

[lugbolt]

Lugbolt
I agree good diagnostics & common sense is a must when attempting to repair hyd problems.

I also agree hyd filters need to be changed if that hasn't been performed lately.

Due to the fact of what you stated against initially adjusting relief valve would you please outline the steps you would utilize in diagnosing/repairing this tractor's hyd low pressure reading?
Thank you,Jim

yeah first you have to know the system. Secondly it's advisable to throw most of the online information you see on this subject away because it's not quite valid. Close but not quite. There is more than one relief. The correct WSM will show it/them. There is also possibility of linkages issues with the valve/cables/controller. Anyone who has any experience with hydraulic systems--even basic systems such as the M7060--will be able to diagnose it pretty quickly.

Does the tractor have any accessories installed? Rear remotes or anything on the rear remotes currently? Does it have a third function valve? Does it have a self-leveling valve on the loader? If so, what brand/type? Any other hydraulic accessories installed? Was the loader factory installed or installed later? Has this been an ongoing issue or did it happen all at once while in operation?

The more a tech knows about a problem the quicker, cheaper, and more effective he/she is in ultimately and properly diagnosing and repairing it.

 

[old and tired]

...the pressure wouldn't go past 1950PSI, i was thinking that there may be a second relief valve for the oil system feeding this which is set at 1950...

Your tractor spec's out at 2,700 psi (give or take). That would be a major game changer, performance wise.

 

[Jesse wheeler]

This whole thread no one shows how to adjust the relief valves on the loader valve does anyone have any info on that my tractor had pressure is fine but the loader it’s self is low on raise and especially lower for down pressure

 

[North Idaho Wolfman]

This whole thread no one shows how to adjust the relief valves on the loader valve does anyone have any info on that my tractor had pressure is fine but the loader it’s self is low on raise and especially lower for down pressure

There are mutiple different valves that they use, so you would need the adjustments for the specific valve that yours has.
The WSM will have all the info needed.

 

[TheOldHokie]

This whole thread no one shows how to adjust the relief valves on the loader valve does anyone have any info on that my tractor had pressure is fine but the loader it’s self is low on raise and especially lower for down pressure

Before jumping to conclusions test the work circuit pressure. There is a very good chance your problem is internal leaks in the cylinders rather thsn the relief valve.

Dan