Graco Inc 308-367, 236721, 236723, 236722, 03289A manual Installation, System Accessories, Grounding

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Installation

Be sure that all operators read and understand this entire manual and the separate manuals supplied with components and accessories before using this equip- ment.

Reference numbers and letters in parentheses refer to the figures and parts drawings.

Accessories mentioned are available from your Graco distributor. If you supply your own accessories, be sure they area adequately sized to meet your system's requirements.

The Typical Installation shown in Fig. 4 is only an example. For assistance in designing a system to meet your particular needs, contact your Graco distributor.

System Accessories

WARNING

Two required components are supplied with your pump, to help reduce the risk of serious injury including fluid injection, splashing in the eyes or on the skin, or injury from moving parts if you are adjusting or repairing the pump.

The bleed-type master air valve (B) relieves air trapped between this valve and the pump. Trapped air can cause the pump to cycle unexpectedly. To bleed air from the pump, the pump air regulator

(F) must be open when you close this valve.

The fluid drain valve (H) assists in relieving fluid pressure in the displacement pump, hose, and gun; triggering the gun to relieve pressure may not be sufficient.

Install an air line filter (E) in the main air line, to re- move harmful dirt and moisture from the compressed air supply. To provide automatic lubrication of the air motor, install an air line lubricator (P) downstream from the pump air regulator (F). Install a second master air valve (D) in the main air line, to isolate the accessories for servicing.

Grounding

To reduce the risk of static sparking, ground the pump, object being sprayed, and all other spray equipment used or located in the spray area. Check you local electrical code for detailed grounding instructions for your area and type of equipment. Be sure to ground all of this spray equipment.

1.Pump: loosen the grounding lug locknut (W) and washer (X). Insert one end of a 1.5 mm2 (12 ga) minimum ground wire (Y) into the slot in lug (Z) and tighten the locknut securely. See Fig. 3. Con- nect the other end of the ground wire to a true earth ground.

2.Air hoses: use only grounded air hoses.

3.Fluid hoses: use only grounded fluid hoses.

4.Air compressor: follow manufacturer's recommen- dations.

5.Spray gun: grounding is obtained through connec- tion to a properly grounded fluid hose and pump.

6.Fluid supply container: according to your local code.

7.Object being sprayed: according to your local code.

8.All solvent pails used when flushing, according to local code. Use only metal pails, which are con- ductive, placed on a grounded surface. Do not place the pail on a non-conductive surface, such as paper or cardboard, which interrupts the grounding continuity.

9.To maintain grounding continuity when flushing or relieving pressure, always hold a metal part of the spray gun firmly to the side of a grounded metal pail, then trigger the spray gun.

X

Y

W

Z

 

￿￿64

Fig. 3

308±367 5

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Contents Part No ±721 308±367Part No ±722 Part No ±723Symbols Table of Contents308±367 MPa, 8.4 bar incoming air pressureCart Mounted Pump Assembling the SprayerWall Mount Pump Pail Mounted PumpSystem Accessories InstallationMust be open when you close this valve GroundingHose and Gun Connections Typical Installation ± Cart Mount Model ShownOperation Pressure Relief ProcedureFlush the Pump Before Using Shutdown and Care Starting and Adjusting the PumpPail Mounted Pumps 10 308±367 PartsPart No ±721 Cart Mounted Pump Description Qty 12 308±367 Part No ±722 Pail Mounted PumpAdapter 14 308±367 Part No ±723 Wall Mount PumpCategory Data Technical DataManual Change Summary Graco Phone Number Graco Warranty±800±367±4023 Toll Free 16 308±367