Posted 10/1/2011 20:49 (#1986808 - in reply to #1986693) Subject: Re: 4430 hydraulic system troubleshooting
Freeburg IL
you need a destroking screw for the pump. Install the destroking screw, then cap the line in front of the valve bock on the right side of the trans case. start the tractor and listen with the destroke screw threaded out, then thread it in and listen for a change in the pump/engine sound. If there is a noticable change then the pump is the problem. often times the outlet valves in the pump. It is repairable.
4430 hydraulic system troubleshooting
