Re: Got the 300u going, but...

Posted by Unreserved dick on February 12, 2007 at 13:32:36 from (4.228.126.17):

In Reply to: Re: Got the 300u going, but... posted by JayWalt on February 12, 2007 at 10:09:42:

Jay,

Contrary to the information you've received in this thread previously, the 300U did not have an open-center hydraulic system as it came from the factory (what's happened since might have changed that, but probably not). The third, smaller port you've noticed on the side of the reservoir is a control line which handles loading and unloading the hydraulic pump. The actual loading/unloading takes place in one of the valves built into the regulator/safety valve block (inboard-rear valve position, no handle); this block also contains a separate safety valve, and maybe a priority valve (on tractors equipped with factory power stearing only).

As far as your surging problem is concerned, it could be a number of things. Probably the best thing to do at this point is to keep working the system and see if the problem goes away as you get the air out of the system. Since the major thing you've changed, from what I can make out, is to put a filter in the suction line, that's what I'd suspect if your troubles continue . . . perhaps you're not getting adequate flow through the new filter??

Good luck.

Replies:

• Re: Got the 300u going, but... JayWalt 14:22:37 02/12/07 (1)
  • Re: Got the 300u going, but... Unreserved dick 14:36:26 02/12/07 (0)

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