Hello,
I recently purchased a 2008 Komatsu PC78MR-6 Excavator. The excavator runs well and is overall in good shape. The issue I am having is the engine will bog down only when I am moving the stick away and in (Left Joystick forward or backward) and the engine will stall out when moving the stick from full away to full in or vice versa without letting go of the controls.
Every other function like swing, boom up/down, curling bucket, dozer, thumb being done will not cause any issue, even if it's a combination of moves. But once I move the stick in or away it starts bogging/drooping engine.
There is no smoke from the exhaust when the engine is bogging down.
Could anyone provide some insight of what to start looking for to diagnose this issue?
Thanks in advance!
I recently purchased a 2008 Komatsu PC78MR-6 Excavator. The excavator runs well and is overall in good shape. The issue I am having is the engine will bog down only when I am moving the stick away and in (Left Joystick forward or backward) and the engine will stall out when moving the stick from full away to full in or vice versa without letting go of the controls.
Every other function like swing, boom up/down, curling bucket, dozer, thumb being done will not cause any issue, even if it's a combination of moves. But once I move the stick in or away it starts bogging/drooping engine.
There is no smoke from the exhaust when the engine is bogging down.
Could anyone provide some insight of what to start looking for to diagnose this issue?
Thanks in advance!