How the Graco works

I am the operations manager of a well known pavement maintenance company in the DC area. Most of our employees are Spanish and not very mechanically inclined. I wonder if a detailed schematic of their machine, along with an expanation of how it works, would help them paint more efficiently, consistently and higher quality. Does such a document exist or do I need to create one myself? I don't think I have an accurate idea of how an airless sprayer works. All I know is the pump sucks paint from the can and pushes it through the hose and gun.

There are parts breakdowns on Graco's web site www.Graco.com , however I don't think by reviewing that material will make your guys better stripers, its a skill that takes time to develop. You are right, in an airless machine, the paint is sucked from the pail then pressurized in the pump and routed to the gun or it can be re-circulated back to the pail.

Here is the direct link to a multilingual operator's manual for the 3900. With the pressures involved, having your operators understand the risks and proper operation would be my first concern. The ability to stripe well is a learned art, and may take time to develop. I have had a few (OK more than a few) trainees that just NEVER got it. http://www.graco.com/Distributors/DLibrary.nsf/Files/3088…