NH3 meter question

[jd730]

I have a red Continental NH3 meter (6000).  I'm having trouble getting it to put on enoughNH3.  Can't find any troubleshooting guides, was wondering if it could be a diaphraghm problem or the manifold?  Adjustment knob turns freely.

Thanks,

John

[Bleeding RED]

Do you have a break away coupler near the trailer hitch and a screen?  The screen may be full of rust.  Check it.  If your break away isn't big enough or working properly, that could be your problem.

[jd730]

Screen was clear and only putting on 65 lbs/N so I believe the coupler is not a factor.  After talking to the dealer I believe the metering rod was sticking and it was so old that Continental will not rebuild it, so I bought a new meter and it seems to be working well.

Thanks

John