Removing the hydraulic control valve

• Disengage PTO and be sure truck is either off or disconnected prior to maintenance
• Make sure pressure has been relived from the hydraulic lines
• The flow divider (Behind the front tub bulkhead) is the part that is rusty, use a large allen wrench (3/8”) and remove the plug (there is one on each side, you can remove either.) The plugs have a rubber “O” ring in them, so use caution when removing.
• Remove the spool inside of the valve, if it won’t come out, remove the plug on the other side of the valve & push out.

• Remove air from the hydraulic system
• Suck tub down on to frame. Hold switch for 4-5 seconds so hydraulics go over relief
• Dump tub ¼ of the way, bring back down to frame and hold switch 4-5 seconds so hydraulics go over relief
• Dump tub ½ of the way, bring back down to frame and hold switch 4-5 seconds so hydraulics go over relief
• Dump tub ¾ of the way, bring back down to frame and hold switch 4-5 seconds so hydraulics go over relief
• Dump tub fully, hold switch for 4-5 seconds in dumped position so hydraulics go over relief
  
  
• Bring tub back down to frame and hold switch 4-5 seconds so hydraulics go over relief
• Fully Cycle the tub 3 additional times, hold switch 4-5 seconds in each position so hydraulics go over relief
• Make sure there are no leaks