check the fuel primer ball just behind the filter, it looks like the same kind that boat motors have, sometimes when they go bad they suck tight,Likely you fuel filteris duo to be changed, it is causing a drop in fuel flow reducing power, next in line is the air filter. These are the common problems. The 743 through 773 non turbo where not real hi hp machines anyway and drivng up hill with a load especially at higher speeds can show these limitations, especially if you have filter troubles. Aside from this is hard to say, lift pump not working, injection pump or injector troubles. But the latter should not be a issue with those low hours.
Ken
thank you for the help, started up the old machine today only because the temp got up to 48 degrees. now there is a new problem, the lift side works but seems to stick, the tilt side does not work at all, hydro filter very hot to the touch, lifted seat to tap valve control no change, any help on this one, seems to me the valve body is sticking ??? what is anything can I do ?? thank you for your helpLikely you fuel filteris duo to be changed, it is causing a drop in fuel flow reducing power, next in line is the air filter. These are the common problems. The 743 through 773 non turbo where not real hi hp machines anyway and drivng up hill with a load especially at higher speeds can show these limitations, especially if you have filter troubles. Aside from this is hard to say, lift pump not working, injection pump or injector troubles. But the latter should not be a issue with those low hours.
Ken
check that the right stick is not stuck in detent for the aux hyd move it left and right till it pops into the center . if you have no need for the aux a bolt will fit into the bottom of the stick and prevent this....Jeffthank you for the help, started up the old machine today only because the temp got up to 48 degrees. now there is a new problem, the lift side works but seems to stick, the tilt side does not work at all, hydro filter very hot to the touch, lifted seat to tap valve control no change, any help on this one, seems to me the valve body is sticking ??? what is anything can I do ?? thank you for your help