jd 300 moves eventually

[markspark]

my tractor takes a long time to get into gear after moving the forward reverse lever. When it has been going for a while the time taken gets so long i give up and park it.
Is there a oil screen, solenoid etc that would cause this or am i looking at a failure in the gearbox?

Mark

 

[MSM]

There is a suction screen in the bottom side of the trans behind a 2" plug that is removed with a 1/2" drive breaker bar. The trans will have to be drained first.There is also a canister type hydraulic filter in the trans case.Sluggish reverser operation can be caused by low fluid,clogged filter/suction screen,improper clutch adjustment/binding linkage,improper reverser valve adjustment or low pump pressure. A service manual would have the adjustment and testing proceedures.