Installation, Prepare the Operator, Grounding

Installation

NOTES:

DReference numbers and letters in parentheses in the text refer to the callouts in the figures and drawings.

DAlways use Genuine Graco Parts and Accessories, available from your Graco distributor. If you supply your own accessories, be sure they are adequately sized and pressure-rated to meet the system's requirements.

DFig. 2 is only a guide for selecting and installing system components and accessories. Contact your Graco distributor for assistance in designing a system to suit your particular needs.

Prepare the Operator

All persons who operate the equipment must be trained in the safe, efficient operation of all system components as well as the proper handling of all fluids. All operators must thoroughly read all instruction manuals, tags, and labels before operating the equipment.

Prepare the Site

Ensure that you have an adequate compressed air supply. Refer to the performance chart on page 15 to find the air consumption of your pump.

Keep the site clear of any obstacles or debris that could interfere with the operator's movement.

Have a grounded, metal pail available for use when flushing the system.

Mounting the Pump

Mount the pump (A) to suit the type of installation planned. The pump dimensions and mounting hole layout are shown on page 13. If you are using a wall bracket (B), check that the wall is strong enough to support the weight of the equipment, hoses, fluid, and stress caused when the pump is in operation. Mount the wall bracket 1.5 m (5 ft) above the floor.

Grounding

WARNING

FIRE AND EXPLOSION HAZARD Before operating the pump, ground the system as explained below. Also read the section FIRE AND EXPLOSION HAZARD on page 4.

DPump: Use a ground wire and clamp. See Fig.1. Loosen the grounding lug locknut (W) and washer

(X). Insert one end of a 12 ga (1.5 mm@) minimum ground wire (Y) into the slot in lug (Z) and tighten the locknut securely. Connect the other end of the wire to a true earth ground. For a ground wire and clamp, order Part No. 237±569.

Z Y

Fig. 1

DAir and fluid hoses: Use only electrically conductive hoses with 150 m (500 ft) maximum combined hose length to ensure grounding continuity.

DAir compressor: Follow manufacturer's recommendations.

DSpray gun or dispensing valve: Connect to a properly grounded fluid hose and pump.

DObject being sprayed: Follow your local code.

DFluid supply container: Follow your local code.

DSolvent pails used when flushing: Follow your local code. Use only metal pails, which are conductive, placed on a grounded surface. Do not place the pail on a nonconductive surface, such as paper or cardboard, which interrupts the grounding continuity.

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

33 5

239-327, Series A specifications

Graco is a renowned manufacturer known for its high-quality spray equipment and pumps, catering to both professionals and DIY enthusiasts. Their diverse lineup includes advanced models such as Series A, Series C, Model 237069, Model 289310, and Model 238620, each uniquely engineered to meet various painting and coating applications.

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