Sprayer question of the day

[Hamloc]

2015 Case ih 4440 sprayer with Aim Command pro. Square field full tank sprays out to 1270 gallons. Field with many obstacles like creek, sloughs, oil leases full tank sprays out 1325-1330. Using 06 nozzles. 8-9 gallons per acre depending on field size. New product pump, about 10-12 hours on it. New flow meter with 150 hours on it. Had one wire harness from boom to sprayed was assembled with stretched wires has been repaired. Less than 2200 hrs on sprayer. Any thoughts?

[furrowtickler]

Liquid cal numbers off a bit ?

[biglentil]

I’d bet on air getting into the suction side or flowmeter during rough/obstacle spraying. Can you hear pump cavitation?

[poorboy]

Do you have a recirculating boom? I have a deere sprayer with the nozzle ninja boom recirculation and I forget to flip the switch to spray it puts spray out the nozzles and measures the recirculation product both through the flow meter.

The Case sprayer that I had would often count high at times also. I wondered if it was foam and the flow meter spun real fast at the end when is started sucking in the foam/water mix.

[Hamloc]

Poor boy yes I have the boom recirc system from nozzle ninja, was installed before I bought it. Yes the switch in the cab is off and I manually close the valve at the back. The difference in total volume between a square field and a more complicated field has been replicated about 4 times each. As far as the cal number was input to match the new flow meter when it was installed. I discussed with my tech guy the possibility of the turn comp calculation in the computer being off and whether there was a software update. He asked if the Pro 700 was using the radar or gps for speed. I told him radar. Has been set to gps now but weather hasn’t cooperated to try it. Also noteworthy we use rangepoint gps as opposed to Waas.

[LEP]

It might be how your look ahead is set for sectional control. More obstacles means more area of potential overlap.

[Hamloc]

It might be how your look ahead is set for sectional control. More obstacles means more area of potential overlap.

Yes I discussed look on and look off with the tech guy. There are settings for both in both the Pro 700 and aim command monitor. No doubt in a square field there are less times this comes in to play. Certainly speed sensitive as well. Easier to set look on and look off on a seed drill than a sprayer. I was wondering what the default settings were.