Page 2 - Contents
Models 2 312578J Contents Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Gun Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Conventional Guns . . . . . . . . . . . . . ...
Page 3 - Warnings; WARNING
Warnings 312578J 3 Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. Refer back to these warnings. Additional, product-sp...
Page 4 - Gun Selection; Conventional Guns
Gun Selection 4 312578J Gun Selection Conventional Guns Excellent atomization and high production rates typically with some reduction in transfer efficiency. HVLP Guns An HVLP gun is a high transfer efficiency gun which limits the air pressure at the air cap to 10 psi (0.07 MPa, 0.7 bar) maximum. In...
Page 5 - Setup; Ground the Gun
Setup 312578J 5 Setup 1. Shut off the air supply. 2. Install a shutoff valve (not supplied) down- stream of the air regulator to shut off gun air. 3. Install an inline air filter (not supplied) to clean and dry the gun air supply. 4. Connect a clean, dry, filtered air supply to the air inlet fitting...
Page 6 - Adjust Spray Pattern
Setup 6 312578J Adjust Spray Pattern 1. Rotate the air cap to achieve desired spray pattern. See F IG . 2 2. To achieve full fan pattern, open the air control valve by turning the knob fully coun-terclockwise. See F IG . 3. 3. To create a round pattern, turn the pattern air off by turning the air co...
Page 7 - Operation; Pressure Relief Procedure
Operation 312578J 7 Operation Pressure Relief Procedure 1. Turn off the gun air supply. 2. Trigger the gun to relieve pressure. Apply Fluid 1. Fill the cup with material. Do not fill past the shoulder on cup. 2. Turn on the shop air to the gun. Set atomizing pressure with the gun fully triggered. 3....
Page 8 - Daily Gun Maintenance; General Tasks
Daily Gun Maintenance 8 312578J Daily Gun Maintenance General Tasks Follow the Pressure Relief Procedure,page 7. • Frequently lubricate the gun moving parts with a drop of non-silicone oil. • Do not disassemble the spray gun if you are having a spray pattern problem. See Troubleshooting, page 10, fo...
Page 9 - Clean Nozzle and Air Cap
Daily Gun Maintenance 312578J 9 Clean Nozzle and Air Cap 1. Remove air cap (13), trigger gun, remove nozzle (11), and soak both in a compatible cleaning solution. 2. Clean air cap, nozzle, and front of the gun with a soft-bristle brush dipped into com-patible solvent. Do not use a wire brush or meta...
Page 10 - Troubleshooting
Troubleshooting 10 312578J Troubleshooting Problem Cause Solution Spray Pattern Normal pattern. No action necessary. Spray Pattern Dirty or damaged air cap or fluid nozzle. Rotate air cap 180°. If pattern follows air cap, problem is in air cap (13). Clean and inspect. If pat-tern is not corrected, r...
Page 12 - Repair; Disassembly
Repair 12 312578J Repair See Parts, page 14, for callout references. Disassembly 1. Unscrew retaining ring (14) to remove air cap (13b). Check o-rings (13a and 13c) and replace if necessary. 2. Trigger gun while unscrewing nozzle (11) to prevent needle damage. 3. Check o-ring (19) and replace if nec...
Page 13 - Reassembly
Repair 312578J 13 Reassembly 1. Install air control valve assembly (5) with valve turned fully counterclockwise to out-ermost position. Torque to 85-90 in-lb(9.6-10.2 N•m). 2. Install air inlet valve assembly (27) with valve turned fully counterclockwise to out-ermost position. Torque to 205-215 in-...
Page 14 - Parts
Parts 14 312578J Parts ti11225a 20 6 5 28 20 7 8 6 8 13c 11 19 21 18 1 9 13b 14 13a 15 2 3 36 27 23 26 9a 9b 9c 22 17 16 10 3 7 1 3 3 3 10 3 3 3 4 4 3 11 11 10 3 Pull trigger before installing nozzle (11).Insert spreader (15) with tapered end facing rear of gun. Insert u-cup (16) with open end facin...
Page 16 - Repair Kits; Without Siphon Cup
Repair Kits 16 312578J Repair Kits Without Siphon Cup With Siphon Cup Needle Tips Model Spray Type Nozzle Size in. (mm) Air Cap Kit (13a-13c) Nozzle Kit (11, 19) Needle Assembly Kit (9a-9c) Needle/ Nozzle Kit (9a-9c, 11, 19) Needle Tip Kit (9c, 5-pack) 289991 Conventional 0.055 (1.4) 289769 289560 2...
Page 17 - Accessories
Accessories 312578J 17 Accessories Repair Kits Air Valves Test Gauges Cleaning Kit Hoses Cups 3M ™ PPS ™ Cups and Accessories Tips Part No. Description 289455 Needle Packing Repair Kit289790 Gun Repair Kit289791 Air Cap Seal Kit289143 Trigger Repair Kit289408 Air Valve Repair Kit289079 Retaining Rin...
Page 19 - Technical Data
Technical Data 312578J 19 Technical Data * Produces 10 psi (0.07 MPa, 0.7 bar) spraying pressure at air cap. ** All readings were taken with the fan valve fully open (fan full size) at the assumed operator position. Sound power was tested per ISO 9614-2. Maximum Air Inlet Pressure . . . . . . . . . ...
Page 20 - Graco Standard Warranty
All written and visual data contained in this document reflects the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice. Original instructions. This manual contains English. MM 312578 Graco Headquarters: Minneapolis Int...