Some way I got out of whack and replied to a newer message about your comments about Apollo's lack of customer service. You have my sympathy, and I am not being sarcastic.
When I bought my Fuji, I had to call customer support several times as I just couldn't get it to spray the way I thought it should. Without their help and their own personal experience in using their own equipment, the road would have been much tougher. I had never used HVLP turbine equipment before except at a demo, and getting the right aircap/pressure/viscosity was too was almost too much for me since all my experience was with high pressure equipment. The Fuji written information that comes with the system isn't much better than the Apollo, but their customer support is absolutely the best.
So - I am assuming the same problem exists. Yes? No? Spraying water when the trigger is closed (not depressed)?
Here is the easiest way to check for debris or poor fit of the needle-to-aircap.
- put your test material in the gun
- close the needle valve completely, screw it down snug
- turn on the turbien and give it some air
Does it spray material?
If it does, a few different things could be the culprit. If it sprays unevenly, it is probably debris, which we covered earlier. However, it sprays evenly, there are other distinct possibilites.
Each aircap requires a certain needle. In some cases, different manufacturers will use the same needle on a couple of different sized caps, but usually not more. I don't know what size aircap comes with the Apollo system, but I would guess somewhere along the lines of a
1.4mm. See if your literature gives a size, at it should be the same number stamped or etched into the cap itself. Now with the gun apart, check the needle and see if it is stamped with number or I.D. of some sort. See if it matches your literature on which needle goes with the cap. If the needle does not fit the correct aircap setup (you will have a stainless block that goes with the cap) then it will not seat properly causing it to spray. You may have a needle that is too small for the aircap assembly, and that would certainly explain everything if it always sprays.
Think of the gun trigger as it actually is; no more than a valve. The needle is the valve, and the gun block/air cap assembly is the valve seat. Make sure that you can see the needle tip move in the aircap assembly when you depress the trigger. It should move in and out of sight easily. If you don't see the tip of the needle even with or just outside the cap when the gun is not in use you may indeed have the wrong, or a damaged needle.
You should know that the needles on >>ALL