User manual GRACO 204500 H

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Manual abstract: user guide GRACO 204500 H

Detailed instructions for use are in the User's Guide.

[. . . ] Do not expose Graco hoses to temperatures above 66_C (150_F) or below ­40_C (­40_F). D Comply with all applicable local, state, and national fire, electrical, and safety regulations. 2 306563 WARNING SKIN INJECTION HAZARD Spray from the gun, leaks or ruptured components can inject fluid into your body and cause extremely serious injury, including the need for amputation. Fluid splashed in the eyes or on the skin can also cause serious injury. D Always have the tip guard and the trigger guard on the gun when spraying. [. . . ] Clear regulator of paint or other fluid by blowing back fluid through the gun and hose. Shut off supply pump and relieve line pressure by opening back pressure regulator or other by-pass valve. Open regulator valve by screwing the threaded portion of key (25) as far as possible into the cap. Loosen air cap ring of spray gun three turns, hold a rag firmly over the end of the cap and trigger the gun. After blow-back, remove the adjusting key (25) Note: Do not use the threaded end of key (25) to adjust pressure. 25 CAUTION Do not pressure test the regulator with air; use solvent. Air may cause leaks between the fluid seals and result in fluid leaks during normal operation. If the rest of the system must be pressure tested with air, loop past the regulator during the test. Insert hex end of key (25) in adjusting screw (20) and turn counterclockwise until spring tension is relieved. Start pump and open shutoff valve of outlet (H) to admit fluid to regulator. Turn key (25) clockwise until desired fluid pressure shows on gauge. CAUTION Do not exceed the Regulated Pressure specification of your regulator. Blow Back Position Note: When reducing pressure, relieve pressure in gun and supply line to ensure a correct gauge reading. 2 Regulating Position 03369 6 306563 Troubleshooting Problem No pressure regulation Fluid leaks under cap Cause Damaged diaphragm Loose cap, worn gasket Damaged diaphragm Pressure creeps above setting Loose cap Worn gasket Damaged diaphragm Worn or held open fluid valve Pressure drops below setting Loose cap Worn gasket Blocked fluid supply line or valve Using regulator beyond capacity Solution Replace diaphragm (31). Flush regulator, replace fluid valves (26 & 27) if worn excessively. Do not use regulator beyond its rated capacity. 306563 7 Service Regulator Disassembly Shut off pump, close shutoff valve and relieve pressure in regulator by triggering the spray gun. Using the hex end of key (25), adjust screw (20) all the way counterclockwise to relieve regulator spring tension. Remove outlet bushing (15) and counter-balance spring (29) (Model 204500 only) from the body. Unscrew valve stem (27) from diaphragm hanger (28) with adjusting key. Remove screws (1), regulator cap (17), spring adjusting screw (20), spring (13), and spring cap (30) (Model 204500 only). Thoroughly inspect all parts and inspect for wear or damage, replacing as necessary. 10 4 25 03371 28 5 6 1 1 12 13 32 30 3 CAUTION Use special care in handling the valve stem and seat to avoid damaging the hard carbide parts. 27 Regulator Reassembly Reassemble regulator in reverse order of Disassembly. [. . . ] The buyer agrees that no other remedy (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale. GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS, OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc. ) are subject to the warranty, if any, of their manufacturer. [. . . ]

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