Graco Inc 237-296 Setup, General Information, Prepare the Operator Prepare the Site Grounding

Setup

General Information

NOTE: Reference numbers and letters in parentheses in the text refer to the callouts in the figures and the parts drawing.

NOTE: Always use Genuine Graco Parts and Acces- sories, available from your Graco distributor. Refer to the Product Data Sheet for the pump, Form No.

305–787. If you supply your own accessories, be sure they are adequately sized and pressure rated for your system.

Fig. 2 is only a guide for selecting and installing sys- tem 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 equip- ment.

Prepare the Site

Grounding

WARNING

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

1.Pump: use the ground wire and clamp (supplied). See Fig. 1. Loosen the grounding lug locknut (W) and washer (X). Insert one end of the ground wire (26) into the slot in lug (Z) and tighten the locknut securely. Connect the other end of the wire to a true earth ground.

W

X

26

Z



Fig. 1

The pump requires 150 scfm (4.2 m#/min) of com- pressed air while operating at 90 psi (6 bar, 0.6 MPa) air pressure and 60 cycles per minute. Ensure that you have an adequate compressed air supply.

Refer to Fig. 2. Bring a compressed air supply line (A) from the air compressor to the pump location. Be sure all air hoses (A) are properly sized and pressure-rated for your system. Use only electrically conductive hoses. The air hose should have a 3/4 npsm(m) thread.

Install a bleed-type shutoff valve (B) in the air line to isolate the air line components for servicing. Install an air line moisture trap and drain valve (C) to help re- move moisture from the compressed air supply.

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 or draining the fluid filter.

2.Air and fluid hoses: use only electrically conductive hoses.

3.Air compressor: follow manufacturer’s recommen- dations.

4.Spray gun: ground through connection to a prop- erly grounded fluid hose and pump.

5.Fluid supply container: follow your local code.

6.Object being sprayed: follow your local code.

7.Solvent 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 continu- ity.

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