Harbor Freight Tools CENTRAL PNEUMATIC 93305 - Manual (Page 14)

For technical questions, please call 1-800-444-3353. SKU 93305 Page 14
If the steps above do not solve the problem or if the repairs involved are too
complex, contact a qualified technician.
Troubleshooting
Spray Pattern Diagnosis
The Patterns below resemble symptoms of spray pattern problems. Please refer to
the accompanying possible problems if you are experiencing similar difficulties. The
solution to each problem follows the problem in parentheses.
Problem 1:
1. The Pattern Control Knob (57) is partially closed. (Open Pattern Control Knob (57).)
2. The material is too thick. (Thin material according to the manufacturer’s instructions.)
3. The air pressure is too low. (Increase air pressure. Make sure air pressure feeding into
the pot is within the proper range (30-43 PSI) & air pressure as shown on the Gauge (38)
is within the proper range (10-30 PSI).)
Problem 2:
1. High air pressure. (Reduce air pressure at gun.)
2. Not enough fluid. (Increase fluid.)
3. Pattern Control Knob (57) open too much. (Partially close Pattern Control Knob (57).)
Problem 3:
1. Air Cap plugged. (Clean the Air Cap.)
2. Air cap loose or dirty seat. (Clean and tighten.)
3. Dried material on fluid tip. (Use a nonmetallic point to clean the Air Cap.)
Problem 4:
1. Dirt on one side of the fluid tip. (Clean the fluid tip.)
2. Holes on one side of the Air cap are plugged. (Clean the Air cap with a nonmetallic
point.)