Re: 4166 steering

Posted by redfarmer on February 08, 2005 at 19:29:24 from (207.69.136.198):

In Reply to: Re: 4166 steering posted by P Backus on February 08, 2005 at 18:46:19:

My thought with the plumbing change was that it might make the circuit more prioritised to the steering valve than the brakes sinced two other guys had responded and were pretty certain the problem had came from lack of hydraulic pressure.As I look back signs of the pressure problem started last summer when I was barely able to fold the wings up on a 28' field cultivator.Then I used a backhoe on it and things just got steadily worse.I don't know if you have a three point but I do so my pump is the 30 gallon pump which operates the rear steering and brakes on a built in priority circuit,the remaining flow is given to the hitch and auxiliary circuits.The front steering is supplied by the 9 gallon pump which also supplies the transmission lube circuit and oil cooler.You mentioned your implements settle too quickly,if you mean they just gradually go down I would suspect worn spools.Since hydraulic valves use only a tight spool to bore clearance to seal the oil there isn't anything you can do to the valve once it is worn. You could however add a check valve to the circuit after the valve,this would hold the implement in any position until pressure was applied in either direction.Hope this helps.

Follow Ups:

• Re: 4166 steering P Backus 19:39:29 02/12/05 (1)
  • Re: 4166 steering redfarmer 13:26:30 02/13/05 (0)

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