**Updated 2/13 to include Graco 395 pump/compressor use recommendations**
Graco 395 Finish Pro and G40 aaa Gun Update:
The G40 gun on our Graco 395 Finish Pro keeps soldiering on, entering it’s fourth year of service with just one repack, after consistent use in both production and fine finish tasks in the shop and in the field. We have not experienced the excessive air orifice clogging that some painters have mentioned. There are days where it looks congested as heck, but you can still feel full air.
We have sprayed alot of latex and acrylic primers through it, as well as heavy bodied exterior paints like Duration and Aura. Even in long production settings, air clogging has not been much of a production impacting issue.
How to Measure Clogging
The way to test for this issue is prior to engaging the trigger to spray, the initial pull of the trigger calls for air only. Put your free hand right out there and feel it…just don’t pull the trigger any further while your hand is in front of the gun.
Check air flow when the gun is clean at the start of your task, and then throughout.
Here are some tips for keeping your G40 happy:
- If you feel a decrease in air at the orifices, dunk the gun and scrub tip with a toothbrush
- Run the air at the compressor high, and dial it down at the gun
- During breaks in spraying, dunk the gun or drape a damp rag over it
- On completion, clean thoroughly, show it lots of love with a wooden toothpick
- Be sure to pull the inline filter at the gun EVERY time; clean/replace as needed
- Pull the diaphragm filter at the pump EVERY time; clean/replace as needed
When not in use, keep the machine and gun in heated space, your living room if necessary. Also, remember to treat all of your spray gear to pump armor regularly.
Update on The Graco 395 Pump/Compressor Combo
Lately there has been some scuttlebutt amongst online contractor circles, with painters expressing concern over the discovery of paint residue in the compressor of the 395 Finish Pro.
To demonstrate, we have removed the front and rear panels from the compressor on our 395.
There is visible paint residue inside the compressor housing. It is in dust form. The compressor is designed to intake fresh air. If the pump is located too close to spraying operations, the compressor will intake air that contains airborne mist. No matter how fine, it is still in the air. If it is in the air it will be drawn to the compressor.
Workarounds to avoid this issue include: using all 50 feet of the supplied fluid/air hose to put maximum distance between the pump and gun. Ideally, locate your pump close to a fresh air source (open window if possible), so that air entering the compressor intake is clean. We also recommend not running the 395 in straight airless mode – kind of defeats the point of having it.
We would emphasize that while paint residue in the compressor is not a desirable condition, it is entirely unlikely that paint in fluid form could enter the air line at the gun and travel in reverse direction against 30 psi of forward airflow, pass through the air quick connect and enter the compressor for internal dispersal. It is more likely that paint could travel to the moon.
Evidence of paint inside the compressor is an external matter, completely controllable by the sprayer operator during set up of the spray operation: Use all 50′ of hose and put distance between the gun and pump; move the air in your spray space away from the pump and operator; supply fresh air in proximity to the pump.
We recommend pulling the compressor panels periodically to clean any over spray residue that does find its way to the inside of the compressor. Pull the intake filter and clean that as well.
[Related: Graco 395 Finish Pro Review]
Anyone have anything they would add to the list?
Here is a short clip of our happy G40:
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