Graco 234414 User Manual

1.

Turn on air supply.

2.

Turn T-handle adjusting screw clockwise on the tank 
pressure regulator, while pulling the gun trigger fully 
back to start material flow.

3.

Continue turning T-handle clockwise until desired 
material flow is achieved. To decrease pressure turn 
T-handle counter-clockwise to a lower setting. Then 
relieve pressure in tank by pulling the ring on the 
safety valve. 

4.

Atomization air for the spray gun can be adjusted 
using the air adjusting valve on the spray gun or at 
the air regulator assembly (Model 234415 only) on 
the pressure tank.

5.

Operate spray gun according to instructions 
accompanying gun.

1.

Turn off main air supply to tank.

2.

Follow Pressure Relief Procedure, page 3.

3.

Turn T-handle adjusting screw on regulator, 
counter-clockwise until no spring tension is felt.

4.

Slowly loosen thumb screws, tip clamps back and 
tip tank lid to one side.

5.

Loosen spray gun air cap ring about three turns.

6.

Turn on air supply.

7.

Hold a cloth over air cap on gun and pull trigger. 
This forces material back through the hose, into the 
tank.

8.

Empty and clean tank and parts using a suitable 
solvent.

9.

Pour solvent into tank.

10. Replace lid and tighten thumb screws and clamps.

11. Turn T-handle on tank regulator clockwise while 

pulling gun trigger fully back and spray until clean 
solvent appears.

12. Repeat steps 1-3.

Decorative powder coating may be affected by 
solvent contact. Avoid prolonged exposure of 
solvents to powder coated areas. Tank has been 
zinc plated underneath the decorative coating for 
rust protection.