Loader SLOOOOW

[edandlisa1999]

I have a B8200 HST with loader that I am having some issues with.
The 3pt works perfect and loader works perfect with this exception, When I raise the loader it goes up Extremely Slow but all other function work fine even the down pressure will lift tractor off ground. In my trouble shooting I found that if I raise the rear 3pt while raising the loader it moves at a normal speed but as soon as the 3pt raises completely the loader goes back into creeper mode,,,Any suggestions would be appreciated. Thanks

 

[07wingnut]

Just tossing this out there, since I am not familiar with your model. Do you detect any strain on the engine or a high pitch squeal during normal operation or when raising your loader? I'm thinking that maybe your 3pth is not sitting in a neutral position, causing your pressure relief valve to bypass the hydraulic fluid and slowing your loader. When you raise your 3pth, you are providing a low pressure path to the sump, and everything speeds up due to normal flow. If this is the case, don't use your tractor until it is fixed, bypassing hydraulic fluid thru the pressure relief is very hard on your hydraulic system and causes the fluid to overheat.

 

[edandlisa1999]

Thanks for the reply. I haven't noticed any squealing or engine bogging down

 

[North Idaho Wolfman]

You need to provide more information:
What make model loader it is?
Is it driven from the pump on the side of the engine behind the injection pump or driven from a pump off of the crank?
Is the loader spool valve stock 2 lever valve?
Are there 2 or 3 lines off of the loader spool valve, aside from the 4 that go to the loader cylinders?

 

[edandlisa1999]

Not sure on model but tractor is a 1989 and I believe loader was bought at same time.
Driven by pump on side behind injector pump
Single lever
3 lines of valve besides lines going to cylinders
Has a float position

Thanks

 

[200mph]

Try swapping the hoses around for the lift/down function to see if the problem followed the hose swap or is with the cylinder. Additional swaps can be done with the curl function to help isolate/conform problem area.

Just remember to swap back to original configuration when done testing.

Good luck!

 

[edandlisa1999]

Swapped hoses around and it did follow the hoses,,,now the bucket curl is slow

 

[200mph]

My neighbor has a b9200 so I am hoping it is similar with respect to bucket controller/joystick.

Do you have what looks like bolts that limit joy stick travel. On his tractor the pins in the linkages gained slop over the years causing his to slow down. The the spool valve itself was no longer moving full stroke due to the slop in the linakages. If this is the case, simply reposition the limit stops so the joy stick moves further. Concentrate on the one that is giving you trouble.

 

[edandlisa1999]

Yes it does have bolts to stop lever but I have tried adjusting them with no effect

 

[North Idaho Wolfman]

Does the valve lock into detent (float)?
There is a know issue that the detent cover fills with water on some models and then freezes in the winter and causes issues.

 

[edandlisa1999]

Yes it does lock in float

 

[stumpcutter]

take control apart clean an check orings on spools

 

[edandlisa1999]

Yes it does lock in float

 

[edandlisa1999]

If it follows the hoses I wouldn't think it would be the Valve,,,,Correct?