Antonio Carraro 3800 HST Tigretrac Compact Tractor

[tonuadrian]

Hi, i recently bought a carraro 3800 hst....i changed the filters and oils but tractor is very very slow and is whining a little from transmision..When i fully press the direction lever it takes 5 seconds to start moving and have...at 3000 rpm and lever at rabbit ..it catches 8 km/h..any idea what to check?

 

[Wagtail]

Hi, i recently bought a carraro 3800 hst....i changed the filters and oils but tractor is very very slow and is whining a little from transmision..When i fully press the direction lever it takes 5 seconds to start moving and have...at 3000 rpm and lever at rabbit ..it catches 8 km/h..any idea what to check?

G'day tonuadrian.

When you replaced the hydraulic fluid 1) did you do it on a level surface and 2) did you check the level of hydraulic fluid the next morning whilst the tractor was 'cold'? (again, on a level surface)

 

[tonuadrian]

1)yes 2)yes

 

[Xfaxman]

Any foam visible in the hydraulic reservoir?

What type of hydraulic fluid did you use?

 

[tonuadrian]

in the rear part, i used 10w30 ambra multi g

 

[Wagtail]

So, the tractor was operating correct before the hydraulic fluid/filter change. You've correctly drained and refilled the hydraulic fluid.

The only thing different, in the process of elimination, is the new filter. Is it the correct filter? Is it seated or 'oriented' correctly (if that is required). If so, it could be blocking/slowing the return of hydraulic fluid to the reservoir = reduced fluid available to run the hydraulic system.

A call to a/your Dealership is in order to answer the filter questions (filter part number/filter seating/orientation).

 

[Sawyer Rob]

I'm thinking it could have some air trapped in the system...

SR

 

[woolyAcres]

I don't know if that machine is like my 4400HST or not but on my machine there are 2 reservoirs. One for hydralulic lift (3PT and remotes) and one for transmission. Could you have changed the 'wrong' one?

 

[Xfaxman]

in the rear part, i used 10w30 ambra multi g

Is the rear part for the HST transmission?