Tractor Repair: international 574, brake bleeders, international 574

Question
high side shifting fork broke so i replaced it and the high side shifting collar was replaced i forgot to tighten line inside transfer case and the lift and brakesdid not work so i took top cover back off tighten line put it back toghter lift and brakes still did not work so i cleaned all valves inside hydralic pump got lift working but brakes still will not work can loosen brake bleeders got fluid good on the right side but the left side just barely drips can not get no brakes on left side when i bleed them have brakes on right side untill i mash both pedals brakes just go away on both sides also after replaceing high speed shifting fork and collar tractor is still jumping out of high gesr can someone please help   thanks so much wayne

Answer
  Make sure the right brake pedal is coming back up all the way, otherwise the equalizer valve will affect the left brake.  If it's OK, then cap off the brake line to the left brake and see if you can get a firm pedal.  If so, then the problem is in the brake piston.  If not, then the master cylinder or equalizer valve is bad.  
 If the detent balls and springs on the shift rails are OK, then possibly the gear that engages with the shift collar is worn