Ih 1460 won?t move

My 1460 combine still won?t move. I?ve checked the shaft into
the pump. I?ve check d the splines on the drive shaft. It?s not
out of oil. I replaced the hydraulic filter and changed oil. The
transmission does not grind if the hydrostat level is ahead and
you try to shift without foot in pedal pushed in. How to check
the little check valve on the foot inch pedal? I was driving the
machine and it just stopped. No cavitation got whining from
the pump prior to this happening. Could I have gotten air in
the system? Or a pressure relief va let gone bad? Any
ideas would be greatly appreciated.
 
(quoted from post at 11:20:18 02/09/18) My 1460 combine still won?t move. I?ve checked the shaft into
the pump. I?ve check d the splines on the drive shaft. It?s not
out of oil. I replaced the hydraulic filter and changed oil. The
transmission does not grind if the hydrostat level is ahead and
you try to shift without foot in pedal pushed in. How to check
the little check valve on the foot inch pedal? I was driving the
machine and it just stopped. No cavitation got whining from
the pump prior to this happening. Could I have gotten air in
the system? Or a pressure relief va let gone bad? Any
ideas would be greatly appreciated.

its been sometime scene i worked on one but i think i would remove the hydo.. pimp from transmission ans then start the engine see if it working the main hydo pump is up on the engine and the motor is on transmission. i thinking remove the motor off the transmission see if it working..also have you check you control cable made sure it not broken
 

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