Lubemizer spray nozzle help

[Kraynes]

2014 LT50, installed Woodmizer lube system recently, after about 15 minutes of sawing the top spray is so covered in wet sawdust that it no longer sprays. 
Thinking pressure maybe an issue so I plugged the bottom spray. 
Same thing, 15 minutes later the top spray is caked with wet sawdust. 
Even when clean and unobstructed it seems to have very low pressure. Any thoughts on low pressure trouble shooting?
No leaks in the system, filter is clean. Nozzle is open (tried a second nozzle just to rule that out) also no foreign material in the spray block. 
Sawdust chute is clear. I run a dust blower. But the sawdust that travels around the band wheels seems a little excessive, could this be an issue? If so what would the cause be. 
The idle side of My lt40 stayed spotless, the 50 seems to stay more covered in sawdust. 

Any ideas are appreciated. 
Thanks 

[YellowHammer]

What species are you sawing?
  
You should never have that much caked sawdust in that area, it should have a little, but 
I would say you are using way, way too much fluid.  The sawdust should be like a dryish cornmeal not a spray glue.  It should not be sticking to the belts, either.  It should basically fall off.   

These pumps aren't high pressure, probably 40 psi or so.  

[Kraynes]

Today was yellow poplar, fresh cut so it's pretty wet. 
Way too much spray makes all the sense in the world, I've went up......but not went down to try less! 
My guess would be you just solved my issue. 

There is some that's been sticking to the band wheel belts. 
I'm sure turning the dial way down is going to solve all the issues. 
Really appreciate the reply/help. 

[YellowHammer]

Here is a video I did recently about sawing speed, but it was also a big poplar like yours, and notice how when the mill is sawing correctly there is almost no sawdust left on the board or anywhere of that matter, and it looks like dry corn meal.  Also, look for the scenes where I show my Lubemizer setting, and you will see it is almost on zero.

Here is a "trust me" moment, next time you are sawing fresh poplar, turn your lube completely off for a couple cuts, because it has two purposes, 1.  cool the band - which is not necessary with wet fresh poplar, because poplar is full of all the water your band needs to stay cool, and 2. to clean the band, and a poplar won't sap up a band for several cuts.  So then make some experimental cuts, and just like in the video, you will see the sawdust disappear when you hit the right feed speed, and at some point, you will see some sap just start to buildup on the band.  At that point, turn the pump to a low setting and see if it cleans the band.  If it's not cleaning at a reasonable and low setting, then add more solvent to the jug, whatever you are using, and keep increasing the solvent until the sap buildup disappears.  Sap is cleaned by more solvent, not more water.  At the end of the day, your band should be shine and as clean as if it just came out of the box.  If not, you have a band cleaner and lube issue.   

For example, if you have grease on your hands, you can't wash them clean by turning the tap water up more, you have to use more soap.  Same thing with keeping a band clean.  More soap, less water. 

     

 

[Dave Shepard]

I only had mine set to spray every few seconds. It hasn't worked in years anyway.

[Kraynes]

Yellowhammer- great video, It is safe to say I have watched all your videos, some more than once. Wife thinks I'm crazy, stand behind a mill all day then spend most evenings watching them on YouTube. Picked up a lot from the videos that apply to my day to day. Appreciate the time and effort you take to teach. 

In the morning I'll turn the lube off and expect I'll see results.