843 no motion yet

[rocky]

843 with Isuzu that I just replaced the rear hydr drive pump - new filters The problem is no drive motion Have lift and tilt I have tried several times and I guess it has lots of air

 

[frogfarmer]

Have worked on several 843s they are very good machines. Air will self bleed quickly so start looking for a problem. Open lines from the charge pump to the feed lines at the hystats and see if you have any flow. Should have a two section hyd pump half works the lift and tilt and half charges the hystats. If the charge side is bad or weak you made ruin a newly built hystat. My guess would be charge pump is bad but always test to make sure. Hope some of that helps.

 

[Fishfiles]

my guess would be you put a hose in the wrong spot when reassembling