Bucket curl dump on LA535/LX3310?

[Showmedata]

When I push the loader control stick to the right, there is clearly a detent and a second position just like there is going forward (to engage float mode), but the bucket lowers at the same speed in either first or second position.

Does anyone know if it *should* act as a rapid dump? And if so, what might be preventing mine from doing so?

Only about 60 hours on a 2yo machine. It's always been this way, did not ever rapid dump.

 

[AKguy09]

Should be slower after the detent

 

[Dustball]

Push to the right up to the detent = fast dump, non-powered
Push to the right past the detent = slow dump, powered

 

[NorthwoodsLife]

On pages 20 and 21 in my LA535 Loader manual:

 

[Showmedata]

Thanks. I'm sure I RTFM when I first got it, but mis-remembered the content.

 

[Showmedata]

now I'm wondering if the dump speed in position R1 is limited by an orifice in the valve which could be enlarged...

I probably won't bother because getting into the guts of that valve is probably quite involved, but when I'm moving snow I would sure like that bucket to dump faster.

 

[TheOldHokie]

now I'm wondering if the dump speed in position R1 is limited by an orifice in the valve which could be enlarged...

I probably won't bother because getting into the guts of that valve is probably quite involved, but when I'm moving snow I would sure like that bucket to dump faster.

There are no orifices in the valve. Spools have annular glands ground into them. Dont try to modify them - the outcome will be bad.

Fast dump is achieved by simultaneously connecting the base and rod end ports to pump. That process is called regeneration.

Have you actually timed a full stop to stop dump in positions R1 and R2? Set engine speed to about 2K and break out the stopwatch. R1 should be about 30% faster.

Dan

 

[Showmedata]

There are no orifices in the valve. Spools have annular glands ground into them. Dont try to modify them - the outcome will be bad.

Fast dump is achieved by simultaneously connecting the base and rod end ports to pump. That process is called regeneration.

Have you actually timed a full stop to stop dump in positions R1 and R2? Set engine speed to about 2K and break out the stopwatch. R1 should be about 30% faster.

Dan

Thank you. This is my first machine with hydraulics, lots to learn.