a few days ago i lost the brakes on my john deere 301a, the hydraulic fluid was about a half gallon low so i topped it up, and bled the brakes, i got the left one back just fine, but i cant get anything out of the right bleeder, the manuel [ i&t] says when this happens, to remove the right foot plate and take off the plug on the top of the master cylinder, and see if it has fluid in it, i did that, it was full, the right pedal will push fluid out of the rear of the master cylinder and thru the line, but not out the bleeder on top of the axle, the bleeder is clear, i have left brake just when i use left brake only, when i step on both pedles both go to the floor,does anybody know what i need to do for this thing? ive kind of diagnosed myself into a corner