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SPECIFICATIONS 

Max. Air Pressure 

0.69MPa (6.9 bar) 

Max. Fluid Pressure 

0.69MPa (6.9 bar) 

Cylinder Air Pressure 

Min. 0.35MPa (3.5 bar) 

Max. 0.50MPa (5.0 bar) 

Weight 

507g 

Gun Stud Diameter 

16.0mm 

Fluid Thread 

G1/4 (M) CAP Thread: G1/4 (M) 

CYL Thread 

G1/4 (M) 

 

INSTALLATION 

Figure 1. Dimensions 

 

Mount the gun with the set screw (22). 
NOTE: 
The air supplied to the gun should be clean air that removed any impurities. Also, the air hose should have enough inner 

diameter depending on the length to supply necessary air. 
 

OPERATION 

1. Mix, prepare and strain the coating material to be sprayed according to paint manufacturer’s instructions. 
2. Adjust the CYL air at 0.35 Mpa ~. Please use air regulator for setting the air pressure for the smooth

 

movement of CYL. 

3. Turn Needle Adjusting Knob counter-clockwise 3.5 turns from fully closed position. This makes the Needle

 

fully opened. 

4. Adjust CAP air at 0.20Mpa.~0.25Mpa. 
5. Adjust fluid pressure at about 0.07Mpa~0.1Mpa. 
6. Turn on CYL air and test spray. Adjust fluid and air pressure until desired pattern is obtained. Pattern size can be adjusted 

by using pattern valve (5). Control fluid pressure at supply source. Always attempt to keep CAP pressure as low as possible 

to minimize overspray and control the air at air supply source. 

WARNING 

Risk of injury. Equipment and fluid may be under pressure. Pressure in the system must be relieved before beginning the 

cleaning procedure and before replacing any parts. Follow the procedures in the literature provided with the system. 

 

Summary of Contents for DA-300

Page 1: ...t No Fluid Tip Size 0 8 1 1 1 4 1 8 mm Air Cap No 305MT 307MT 345 NOTE The fluid passage is made of Stainless Steel This gun can be used with waterborne paint Chart 1 Air Cap Fluid Tip Size mm Pattern...

Page 2: ...solvents for cleaning Those used for equipment flushing must have a flash point equal to or greater than that of the coating Those used for general cleaning must have flash points above 100 F 37 8 C...

Page 3: ...f actual noise levels produced by the various air cap nozzle set ups are available on request Wear earplugs when using the spray gun Spraying solvent Pressured air fluid passage may be broken when cle...

Page 4: ...Please use air regulator for setting the air pressure for the smooth movement of CYL 3 Turn Needle Adjusting Knob counter clockwise 3 5 turns from fully closed position This makes the Needle fully op...

Page 5: ...Needle Packing Kit 7 1 Relieve all air and fluid pressure in system 2 Remove Retaining Ring 1 and Air Cap 3 3 Remove Fluid Tip 4 4 Replace Fluid Tip and Needle at the same time with the lapped set It...

Page 6: ...ve Gasket 1 10 DA P10 K5 O Ring Kit of 5 1 11 DA 43 Air Valve Assy 1 12 DA Y20 K3 Y Packing Kit of 3 1 13 DA 9 Piston Assy 1 With DA Y20 14 DA 4993 Spring Kit 1 15 DA 46 K5 E Ring Kit of 5 1 16 3 16BA...

Page 7: ...struction in the line 2 Gun material passage plugged 3 Worn Needle Seal Kit 7 4 Loose or damaged fluid tip 1 Fill tank or clear obstruction 2 Clean 3 Replace 4 Tighten or replace Air leaking from Ratc...

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