To Next PageTo Next PageWhy is fluid dripping from the bottom of my DeVilbiss FLG4's cup?
Fluid dripping or leaking from the bottom of the cup on your DeVilbiss Paint Sprayer may be because the cup is loose on the gun, the cup gasket is worn or missing below the cup, or the cup threads are dirty. Tighten the cup, replace the cup gasket, and clean the threads.
How to prevent runs and sags with DeVilbiss FLG4 Paint Sprayer?
Runs and sags when using your DeVilbiss Paint Sprayer can happen if there's too much material flow, the material is too thin, or if the gun is tilted at an angle, or moved too slowly. Adjust the gun or reduce fluid flow, properly mix the material or apply light coats, and hold the gun at a right angle to the work surface, adapting proper gun technique.
Why is my DeVilbiss Paint Sprayer producing a dry spray?
Dry spray from your DeVilbiss Paint Sprayer can be due to several reasons: the air pressure is too high, the gun tip is too far from the work surface, or the gun motion is too fast, or the gun is out of adjustment. Reduce the air pressure, adjust to the proper distance, slow down your motion, and adjust the gun.
How to get round spray with DeVilbiss Paint Sprayer?
If you're unable to get a round spray from your DeVilbiss Paint Sprayer, it could be that the spreader adjustment screw is not seating properly or the air cap retaining ring is loose. Clean or replace the spreader adjustment screw, and tighten the air cap retaining ring.
Why will my DeVilbiss FLG4 Paint Sprayer not spray?
If your DeVilbiss Paint Sprayer will not spray, it could be due to no air pressure at the gun, the fluid needle adjusting screw not being open enough, or the fluid being too heavy for gravity feed. Check the air supply and air lines, and blow out the gun air passages. Open the fluid needle adjusting screw. Thin the material and/or change to a larger tip size.
Why is my DeVilbiss FLG4 Paint Sprayer creating excessive fog?
Excessive fogging with your DeVilbiss Paint Sprayer is often due to too much or too fast-drying thinner, or too much atomization (air pressure). Remix properly or reduce the air pressure to resolve this issue.
Why does my DeVilbiss FLG4 have a split spray pattern?
A split spray pattern from your DeVilbiss Paint Sprayer can be caused by atomization air pressure being too high, fluid flow being too low, or the spreader adjusting valve set too high. Reduce the air pressure at the transformer or gun, increase fluid flow to increase gun handling speed and adjust the spreader adjusting valve.
What causes a heavy center pattern with DeVilbiss FLG4 Paint Sprayer?
A heavy center pattern with your DeVilbiss Paint Sprayer can occur if the fluid flow is too high for the atomization air, the material flow exceeds the air cap's capacity, the spreader adjustment valve is set too low, the atomizing pressure is too low, or the material is too thick. Balance air pressure and fluid flow, increase the spray pattern width with the spreader adjustment valve, thin or lower fluid flow, adjust the pressure, and thin the material to the proper consistency.
Why does my DeVilbiss FLG4 have a heavy right or left side pattern?
A heavy right or left side pattern is caused by left or right side horn holes that are plugged or dirt on the left or right side of the fluid tip. To fix this, clean the affected parts and ream with a non-metallic point.
Why does my DeVilbiss FLG4 Paint Sprayer have a jerky or fluttering spray?
A jerky or fluttering spray can occur if the fluid tip/seat is loose or damaged, the material level is too low, the container is tipped too far, there's an obstruction in the fluid passage, or the fluid needle packing nut is dry or loose. To resolve this, tighten or replace the fluid tip/seat, refill the material, hold the container more upright, backflush with solvent, and lubricate or tighten the packing nut.
General| Type | Gravity Feed Spray Gun |
|---|---|
| Nozzle Size | 1.4 mm |
| Cup Capacity | 600 ml |
| Material | Aluminum |
| Pressure | 29 psi |
| Fluid Tip | 1.4 mm |
| Air Inlet | 1/4 inch |
| Application | Automotive, Industrial |
| Operating Pressure | 29 psi |
Details HVLP models' air cap pressure limits and CFM requirements for efficient spraying.
Describes the durable aluminum cup with nickel-plated brass insert and recyclable lid.
Details the acetal cup with drip check lid and stainless steel connector for water-based materials.
Instructions for attaching the cup to the gun body, including gasket and filter.
Covers initial flushing, air supply connection, pressure adjustment, and quick connects for optimal spray.
Instructions for mixing materials, filling the cup, and installing the lid for proper spray gun use.
Explains warning, caution, and note symbols used in the manual for user safety.
Details hazards like fire, solvent spray, toxic substances, explosion risks, and general safety practices with safeguards.
Informs about chemicals known to cause cancer or birth defects in California products.
Guides on adjusting spreader valve, fluid needle, and air pressure for optimal spray patterns.
Warning against soaking cup lids in solvent for extended periods to prevent sealing issues.
Instructions for routine cleaning, fluid passage cleaning, and air cap cleaning.
Daily lubrication points for trigger, air valve, fluid needle, and baffle for optimal gun performance.
Recommendations for replacing fluid tips, needles, and seals simultaneously, including torque specifications.
Lists all components of the FLG4 spray gun with part numbers for 702576 and GFC-501 cups.
Identifies common spray patterns like heavy top/bottom or split spray and provides corrective actions.
Addresses issues like fluid leaks, runs, sags, and thin, sandy finishes with specific solutions.
Lists optional accessories like cleaning kits, cups, regulators, air cap test kits, and gun holders.
Details the 1-Year Limited Warranty provided by DeVilbiss Automotive Refinishing.
