Check lift cylinder and lift valve????

   / Check lift cylinder and lift valve???? #1  

smokeless

Member
Joined
Aug 9, 2018
Messages
41
Tractor
kubota
We have a lift valve and lift cylinder on a mower. It is part of the hydraulic system on zero turn. Left and right wheel hydraulic motors work fine. Deck wont raise.

We do not have pressure gages or flow meters and want to identify if the valve, cylinder or both are bad. Thought we would do a shade tree test and disconnect out going hose on valve and see if it is moving fluid. Same for lift cylinder. Both appear to be on the end of the circuit before returning to tank. Comments please....
 
   / Check lift cylinder and lift valve???? #2  
Give it a try a mind see if you have flow......it won’t hurt.

How is the valve actuated? Cables, electric or a manual lever on the valve?
 
   / Check lift cylinder and lift valve????
  • Thread Starter
#3  
Manual lever on the valve, then lines to lift cylinder for deck. We know main pump is good since wheels turn properly. Valve and lift cylinder on end of hydraulic circuit. Thanks
 
   / Check lift cylinder and lift valve???? #4  
Give cracking a fitting a try. It’s uncommon for a valve to go bad and you’d think a cylinder would give some warning of failure...unless it saw damage. Maybe some debris got stuck in one of the fittings.
 
   / Check lift cylinder and lift valve????
  • Thread Starter
#5  
Give cracking a fitting a try. It痴 uncommon for a valve to go bad and you壇 think a cylinder would give some warning of failure...unless it saw damage. Maybe some debris got stuck in one of the fittings.

Thats a good idea, should we forget checking the valve and crack the fitting going to or from the cylinder?
 
   / Check lift cylinder and lift valve???? #6  
Thats a good idea, should we forget checking the valve and crack the fitting going to or from the cylinder?

I would make sure the cable is operating the valve, then crack a fitting as suggested.
 

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