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INSTRUCTIONS–PARTS LIST
30:1 PRESIDENT CARBON STEEL, WALL MOUNTED
PRO AA4500 Electrostatic Package
See the Data Sheet, 305–668, for application information.
3000 psi (210 bar) Maximum System Working Pressure
100 psi (6.9 bar) Maximum Air Inlet Pressure
Model 237–425, Series A
This complete package includes a pump,
electrostatic air-assisted airless gun with a size 411 tip
,wall bracket, 25 ft. (7.6 m) air and fluid hoses,
air and fluid controls, and a fluid feed.
IMPORTANT
This manual provides the basic safety, installation and
operation information for the package. For your safety,
also read the component manuals supplied with this
package before operating it.
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
This manual contains important
warnings and information.
READ AND RETAIN FOR REFERENCE
COPYRIGHT 1994, GRACO INC.
308–464
Rev. B
Supersedes A
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Summary of Contents for Graco 237-425
- Page 1 This manual provides the basic safety, installation and operation information for the package. For your safety, also read the component manuals supplied with this package before operating it. GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 COPYRIGHT 1994, GRACO INC.
- Page 2 ........This symbol alerts you to the possibility of damage to Graco Phone Numbers ......
- Page 3 Handle and route hoses and tubes carefully. Keep hoses and tubes away from moving parts and hot surfaces. Do not use the hoses to pull equipment. Do not expose Graco hoses to tempera- tures above 180 F (82 C) or below –40 F (–40 C).
- Page 4 This equipment is for professional use only. Read all instruction manuals, tags, and labels before operating the equipment. Use the equipment only for its intended purpose. If you are in doubt about this, call Graco Techni- cal Assistance at 1–800–543–0339.
- Page 5 Setup Prepare the operator. 4. Have a grounded, metal waste–pail available to use when draining the fluid filter. All persons who operate the system should be trained in the safe, efficient operation of all system compo- nents as well as the proper handling of the chemical 5.
- Page 6 Setup III. Unpack the system. Connect the hoses and gun to the system. 1. In addition to the assembled components, the air See Fig. 1. and fluid hoses, gun and instruction manuals are 1. Connect the blue fluid hose (6) between the fluid packaged separately in the main shipping con- filter and the fluid inlet of the spray gun (3).
- Page 7 4. Electrostatic spray gun: grounding is obtained through connection to a properly grounded air supply hose. Use only Graco electrically conduc- tive air supply hose (34) as supplied with this system. Loosen the grounding lug locknut (W) and washer (X). Insert the bare end of the air hose ground wire into the slot in the lug and tighten the Fig.
- Page 8 System Component Information VII. How to use the air–assisted airless ES indicator light electrostatic spray gun. See Fig. 6. ES On–Off lever I is ON and 0 is OFF The air hose supplies air to the spray gun. Part of the Air control valve air operates the turbine and the rest of the air assists Electrode...
- Page 9 System Component Information VIII. How to adjust the air regulators. See Fig. 9. As you look at the system, the air regulator (8a) on the left regulates air to the gun and the air regulator (8b) on the right regulates air to the pump. 1.
- Page 10 Operation Pressure relief procedure Flush the pump before the first use. Flush with a solvent compatible to your fluid. Consult WARNING the fluid manufacturer’s literature for recommenda- tions. See Flushing on page 13. The system remains pressurized until pressure is manually relieved.
- Page 11 Operation Set the fluid and air pressure. WARNING 1. Install the spray tip and air cap on the gun. This system has a maximum air working pressure 2. Adjust the pump air pressure regulator until the of 100 psi (6.9 bar) which produces a maximum pressure shown on the fluid filter gauge is about fluid working pressure of 3000 psi (210 bar).
- Page 12 Operation 8. Hold the gun tip (electrode) (D) 10 to 12 in. (250 to You are now ready for production 300 mm) from the grounded part and trigger the spraying. gun. Operate the gun like a conventional spray gun, but use a slower stroke to allow the electros- CAUTION tatics to work properly.
- Page 13 Flushing When to flush. NOTE: The gun air regulator (8b) always stays closed during flushing. Before the first time use 7. Open the master air valves (A,14). When changing colors Before fluid can dry or settle out in a dormant sys- 8.
- Page 14 Parts Model 237–425, Series A Includes items 1 to 44 Part No. Description Part No. Description 223–586 PRESIDENT PUMP 206–994 THROAT SEAL LIQUID, 8 oz 156–849 NIPPLE, See 306–981 for parts 3/8 npt x 3/8–18.6 sf 186–727 WALL MOUNTING BRACKET 210–658 BALL VALVE, 3/8 npt (mbe),...
- Page 15 Parts Model 237–425, Series A Includes items 1 to 44 Ä Ä...
- Page 16 WARRANTY Graco warrants all equipment manufactured by it and bearing its name to be free from defects in fluid and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. As purchaser’s sole remedy for breach of this warranty, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment proven defective.