Power Steering issue

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   I have what I believe to be a 610 AC forklift.  It has a D15 Series 2 engine in it (160 cu. in.).  I am having trouble with the power steering not responding when I first start it up.  The steering wheel is very hard to turn, and the steering wheels don't respond much.  After warming up for a while and pulling on the steering wheel it seems to just start working.  It will work fine until I shut it off.  When I restart it, it may bother again, or it may work right immediately.  The forklift works up and down good right away after starting.  I think the pump is working.
Is air getting into the system somehow?  Not sure where to start.  Any ideas?
Joel

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jpi72 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 27 Jul 2019 Location: Hudson, Iowa Points: 45	Post Options Post Reply Quote jpi72 Report Post Thanks(0) Quote Reply Topic: Power Steering issue Posted: 3 hours 17 minutes ago at 3:15pm
	I have what I believe to be a 610 AC forklift. It has a D15 Series 2 engine in it (160 cu. in.). I am having trouble with the power steering not responding when I first start it up. The steering wheel is very hard to turn, and the steering wheels don't respond much. After warming up for a while and pulling on the steering wheel it seems to just start working. It will work fine until I shut it off. When I restart it, it may bother again, or it may work right immediately. The forklift works up and down good right away after starting. I think the pump is working. Is air getting into the system somehow? Not sure where to start. Any ideas? Joel

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DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 22596	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 2 hours 45 minutes ago at 3:47pm
	The power steering pump (if it is a stand-alone pump) is losing prime. Time to reseal/overhaul/teardown. I'm not familiar with the chassis, but if the lift system always works, the power steering must be a pump of its own. Or, it is a tandem type pump with PS on one end and Lift on the other. Anyway, it is PUMP issues. Nothing else.

CrestonM Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 08 Sep 2014 Location: Oklahoma Points: 8463	Post Options Post Reply Quote CrestonM Report Post Thanks(0) Quote Reply Posted: 48 minutes ago at 5:44pm
	I don't mean to hijack, but what if a guy is having the opposite issue? Steering works but it turns very freely and takes a lot more turning of the wheel to get the steering to respond. Steering orbital needing rebuilt you think?