863C won't drive at all

[bobkatdoctor]

We overhauled the engine in an old 863C as well as replacing the rear plate on the hydrostatic. It was apart for quite a while. Finally got it all back together and now it won't drive at all. No response to stick movement on either side. It is an old cable steer unit. Anyone have any ideas? The lift and tilt functions work normally. I can't seem to find any info on testing pilot pressure. I suspect we don't have any. Just seems like the servos are not moving the swash plates for some reason... Andy

 

[antfarmer2]

Can you loosen some lines to bleed the air out

 

[bobkatdoctor]

Can you loosen some lines to bleed the air out

we did loosen some lines and bled it. We also loosened the plugs on the servos and got some air out, but still won't budge. I'm not sure if there is a pilot dump solenoid in the bics system on those? I don't remember running across one. But I have not worked on all that many cable steer models. Fortunately they didn't make those for long. Andy

 

[antfarmer2]

we did loosen some lines and bled it. We also loosened the plugs on the servos and got some air out, but still won't budge. I'm not sure if there is a pilot dump solenoid in the bics system on those? I don't remember running across one. But I have not worked on all that many cable steer models. Fortunately they didn't make those for long. Andy

I don't know that one either have you changed the filters I would bleed some more till someone that knows comes along

 

[antfarmer2]

I don't know that one either have you changed the filters I would bleed some more till someone that knows comes along

Does it load up when you try to drive it

 

[bobkatdoctor]

Does it load up when you try to drive it

Not at all.

 

[antfarmer2]

Not at all.

Does it have drain case filters?

 

[bobkatdoctor]

Does it have drain case filters?

I don't believe that it does. If so, just one at the reservoir.