CCLS Remote Problem?

[lfc]

My new TS6020 has a dual remote valve stack pretty much identical to the 10 series deluxe remotes. When it was delivered, the RH remote would not float - the handle would go into the float position, but the SA cylinder (Discbine) wouldn't drop unless you deadheaded the valve in the lower position. Dealer said it was normal, but looked into it and found out the RH remote has a load check valve between the valve stack and the couplers that will not open unless there is system pressure on it. Not sure why it was there - maybe for safety? They removed it so now I have float back. Problem is now with the RH lever in float, the LH remote is dead. Put the RH lever back in neutral and all is fine. Also, the RH remote leaks down quickly - you can literally see the Discbine drop. I've studied the flow schematics in the shop manual and thought it might be the shuttle check valve between the two remotes, but it doesn't make sense then that the LH remote would only not work when the RH is in float but work when it is in neutral. Dealer still says it is normal, but I wanted to try and figure out what was wrong before they have at it again.
By the way, the Tier 3 NEF engine seems to be even a little stronger than my 7710. Maybe a little less responsive on the throttle and uses more fuel, but the power is great. I'm very happy with it.

 

[RodinNS]

I don't know what is 'normal' on that valve but it's certainly not normal on the Rexroth valves on the 10 series...
I wonder if removing the load check is part of the problem... Also wonder if there simply wasn't an adjustment issue with a cable causing the lack of float. Otherwise I'd suspect a problem with THAT spool. The shuttle checks will cause a lack of response in one valve or the other when one is activated because with the shuttle check open it allows load sense pressure to bleed back through the other spool. If you activate a valve and have no response but then get a response when BOTH are activated then I would say you have a bad shuttle check...

Rod

 

[lfc]

Thanks Rod - I'll check the valve between the remotes. It still doesn't make sense to me though why the valve would work when in neutral, but not in float. I'm sure the initial float issue was not cable related, as I checked that first and the valve would securely detent in the float position. I wish my dealer was a little more interested in either fixing it or giving me a good explanation as to why it is the way it is.