INSTRUCTIONS–PARTS LIST

This manual contains IMPORTANT

WARNINGS AND INSTRUCTIONS

READ AND RETAIN FOR REFERENCE

307–975

Rev. C

Supersedes B

AIR CAP RESTRICTION VALVE

Part No. 222–322

For use with Model PRO3500 and

PRO4500 Series Electrostatic Air Spray Gun.

Allows air cap air flow to be restricted without limiting high voltage output.

Air Cap Restriction Valve

Valve includes o-ring,part no.

106–555

CAUTION

To avoid damaging the air cap restriction valve, the fan air adjustment valve MUST be removed BEFORE removing the restriction valve.

Plug

Fan Air

Adjustment

Valve

WARNING

Pressure Relief Procedure

To reduce the risk of serious bodily injury, including splashing in the eyes or on the skin, injury from moving parts or electrostatic shock, follow this procedure before installing the valve.

1.

Turn the ES On–Off valve lever to OFF.

2.

Turn off the air and fluid supply to the gun.

3.

Trigger the gun into a grounded metal waste container to relieve air and fluid pressure.

4.

Open the pump drain valve, having a waste container ready to catch the drainage.

5.

Leave the pump drain valve open until you are ready to spray again.

INSTALLATION

1.

Place a wrench on the flats of the fan air adjustment

valve and remove it from the gun handle.

2.

Remove the plug from the gun handle. See illustration.

3.

Screw the restriction valve into the gun handle.

4.

Apply PTFE paste on the threads of the fan air

adjustment valve and install it into the gun handle.

Torque the valve to 10 to 12 in-lb (1.1 to 1.4 N m).

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441

COPYRIGHT 1989 GRACO INC.

PERFORMANCE GRAPH

NOTE: 100% is equivalent to full air flow.

AIR

FLOW

(percentage)

VALVE POSITION

Operating the Air Cap Restriction Valve

Limit the air flow to the air cap by turning the valve with a flat blade screw driver until the desired air flow/atomization level is achieved. See the graph, above, for the performance curve.

THE GRACO WARRANTY AND DISCLAIMERS

WARRANTY

Graco warrants all equipment manufactured by it and bearing its name to be free from defects in material 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. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written recommendations.

This warranty does not cover, and Graco shall not be liable for, any malfunction, damage or wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of non–Graco component parts.

Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility with Graco equipment of structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or maintenance of structures, accessories, equipment or materials not supplied by Graco.

This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor and transportation.

DISCLAIMERS AND LIMITATIONS

THE TERMS OF THIS WARRANTY CONSTITUTE PURCHASER’S SOLE AND EXCLUSIVE REMEDY AND ARE IN LIEU OF ANY OTHER WARRANTIES (EXPRESS OR IMPLIED),

INCLUDING WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, AND OF ANY NON–CONTRACTUAL LIABILITIES, INCLUDING

PRODUCT LIABILITIES, BASED ON NEGLIGENCE OR STRICT LIABILITY. EVERY FORM OF LIABILITY FOR DIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS IS

EXPRESSLY EXCLUDED AND DENIED. IN NO CASE SHALL GRACO’S LIABILITY EXCEED THE AMOUNT OF THE PURCHASE PRICE. ANY ACTION FOR BREACH OF WAR-

RANTY MUST BE BROUGHT WITHIN TWO (2) YEARS OF THE DATE OF SALE.

EQUIPMENT NOT COVERED BY GRACO WARRANTY

GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO

ACCESSORIES, EQUIPMENT, MATERIALS, OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO.

These items sold, but not manufactured by Graco

(such as electric motor, switches, hose, etc.) are subject to the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these warranties.

Factory Branches: Atlanta, Chicago, Dallas, Detroit, Los Angeles, West Caldwell (N.J.)

Subsidiary and Affiliate Companies: Canada; England; Switzerland; France; Germany; Hong Kong; Japan; Korea

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441

PRINTED IN U.S.A. 307–975 3–89 Revised 9–91