Temperamental feed rollers?

[WilliAm444]

Hi,

My feed rollers on my Jbm 521mdx spin very slow on start up, once warm spin as usual. I did have a hydraulic hose come loose and since changing the oil the problem started. I have changed the hydraulic oil, it's not the valve block and its reaching 1200 rpm.

 

Anyone else had a similar issue?

 

Thanks

[skyhuck]

Just cold oil I would think.

[WilliAm444]

Yes but even on the milder days it's doing this and prior to the pipe coming loose and me changing the oil they would spin properly straight away.

[skyhuck]

Yes but even on the milder days it's doing this and prior to the pipe coming loose and me changing the oil they would spin properly straight away.

 

The old oil had probably lost viscosity. Was the new all the same number as the old?

 

I presume you changed the filter?

[Brushcutter]

The only time I've had issues with feed roller speed is when i changed the oil. I put oil in that was too thick and the rollers turned very slowly and even when it was hot they were slow. Put some ISO32 in it and it worked a treat.