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4:1 President
Инструкция по эксплуатации Страница: 5

Graco 4:1 President [5/16] Warning

307745 5

Setup

NOTES:

D Reference numbers and letters in parentheses in

the text refer to the callouts in the figures and the

parts drawing.

D Accessories are available from your Graco repre-

sentative. If you supply your own accessories, be

sure they are adequately sized and pressure-rated

to meet the system’s requirements.

Grounding

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.

WARNING

Proper grounding is an essential part of maintaining a

safe system.

To reduce the risk of static sparking, the mounting

cover and all electrically conductive objects or devices

in the spray area must be properly grounded. Check

your local electrical code for detailed grounding

instructions for your area and type of equipment.

Agitator and drum cover: Connect one end of the

ground wire (Y) to the ground connector (X) on the rim

of the drum cover. See Fig. 1. Connect the other end

of the ground wire to a true earth ground. See the

pump instruction manual (307986 for 230992, 307985

for model 230993, or 308793 for model 220575) for

instructions on grounding the pump.

Fig. 1

Air and fluid hoses: Use only electrically conductive

hoses with 500 ft. (150 m) maximum combined hose

length to ensure grounding continuity.

Air compressor: Follow manufacturer’s recommenda-

tions.

Spray gun or dispensing valve: Ground through con-

nection to a properly grounded fluid hose and pump.

Object being sprayed: Follow your local code.

Fluid supply container: Follow your local code.

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 card-

board, which interrupts the grounding continuity.

To 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.

Positioning the Unit

Select a convenient location for the unit. The air

valves for the pump (37) and agitator (5) must be fully

accessible.

System Accessories

A bleed-type master air valve (N) and a fluid drain

valve (K) are required in your system. These

accessories help reduce the risk of serious injury,

including splashing of fluid in the eyes or on the

skin, and injury from moving parts if you are adjust-

ing or repairing the pump or agitator.

The bleed-type master air valve relieves air

trapped between this valve and the pump after the

air is shut off. Trapped air can cause the pump to

cycle unexpectedly. Locate the valve close to the

pump. A red–handled bleed–type ball valve is

supplied to relieve air trapped in the air motor.

The fluid drain valve assists in relieving fluid pres-

sure in the displacement pump, hose, and gun.

Triggering the gun to relieve pressure may not be

sufficient. Order Part No. 210071.

WARNING

Graco 4:1 President [5/16] Warning

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