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Graco Inc. 312578H manual

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Table of contents for the manual

  • Page 1

    Instr uctions-P ar ts AirPr o ™ Siphon Feed Air s pra y Gun 312578H ENG Con ventional, HVLP , and compliant guns f or specialty industrial applications. For pr ofessional use only . 100 psi (0.7 MP a, 7 bar) Maximum Air Inlet Pressure See page 2 f or model inf or mation. Impor tant Safety Instructions Read all warnings and in str uctions in this [...]

  • Page 2

    Models 2 312578H Contents Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 W arnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Gun Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Conv entional Guns . . . . . . . . . . . . . . . . . . . . . . . 4 HVLP Guns . . . . . . . . [...]

  • Page 3

    Warnings 312578H 3 Wa r n i n g s The f ollowing w ar nings are for the setup , use, grounding, maintenance, and repair of this equipment. The e xclamat ion point symbol aler ts you to a general warning and the hazard symbols ref er to procedure-specif ic r isks. Ref er back to these w ar nings. Additional, product- specific warnings ma y be f ound[...]

  • Page 4

    Gun Selection 4 312578H Gun Selection Con ventional Guns Excellent atomizati on and high production rates typically with some reduction in tr ansf er efficiency . HVLP Guns An HVLP gun is a high transf er efficiency gun which limits the air pre ssure at the air cap to 10 psi (0.07 MP a, 0.7 bar) maximum. In some areas, an HVLP gun is required f or [...]

  • Page 5

    Setup 312578H 5 Setup 1. Shut off the air supply . 2. Install a shut off valv e (not supplied) do wn- stream of the air regu lator to shut off gun air . 3. Install an inline air filter (not supplie d) to clean and dr y t he gun air supply . 4. Connect a clean, dr y , filtered air supply to the air inlet fitting. See F IG . 1. 5. Connect fluid cup t[...]

  • Page 6

    Setup 6 312578H Adjust Spra y P attern 1. Rotate the air cap to achie ve desired spr ay patter n. See F IG . 2 2. T o achiev e full f an patter n, open the air control v alve b y tur ning the knob fully coun- terclockwise . See F IG . 3. 3. T o create a round patte r n, tur n the patter n air off b y tur ning the air control valv e fully clockwise [...]

  • Page 7

    Operation 312578H 7 Operation Pressure Relief Pr ocedure 1. T ur n off the gun air supply . 2. T r igger the gun to reliev e pressure . Appl y Fluid 1. Fill the cup with materi al. Do not fill past the shoulder on cup . 2. T ur n on the shop air to the gun. Set atomizing pressure with the gun fully trigg ered. 3. Adjust the patter n siz e and shape[...]

  • Page 8

    Daily Gun Maintenance 8 312578H Dail y Gun Maintenance General T asks Fo l l o w t h e Pressure Relief Pr ocedure , page 7. • F requently lubr icate the gun moving par ts with a drop of non-silicone oil. • Do not disassemble the spr ay gun if y ou are having a spr ay pattern problem. See T r oubleshooting , page 10, f or inf or mation on how to[...]

  • Page 9

    Daily Gun Maintenance 312578H 9 Clean Nozzle and Air Cap 1. Remov e air cap (13), trigger gun, remov e nozzle (11), and soak both in a compatible cleaning solution. 2. Clean air cap , nozzle, and front of the gun with a soft-bristle br ush dipped into com- patible solv ent. Do not use a wire brush or metal tools. 3. Use a soft implement, such as a [...]

  • Page 10

    Troubleshooting 10 312578H T r oubleshooting Prob lem Cause Solution Spra y P atter n Nor mal patter n. No action necessar y . Spra y P atter n Dir ty or damaged air cap or fluid nozzle. Rotate air cap 180°. If patter n f ollows air cap , problem is in air cap (13). Clean and inspect. If pat- ter n is not corrected, replace air cap . If patter n d[...]

  • Page 11

    Troubleshooting 312578H 11 Will not spra y Cup is empty . Fill cup . Fluid control v alve (8) turned too f ar clockwise . Adjust v alve (8) countercloc kwise. Excessiv e air blo wing back Loose fluid nozzle (11). T ighten fluid nozzle (11). Damaged fluid nozzle seal (19). Replace seal (19). Excessiv e air leak behind trigg er . W or n u-cups/air va[...]

  • Page 12

    Repair 12 312578H Repair See Pa r t s , page 14, for callout ref erences. Disassembl y 1. Unscrew retaining r ing (14) to remov e air cap (13b). Check o- r ings (13a and 13c) and replace if necessar y . 2. T r igger gun while unscr ewing nozzle (11) to pre vent needle damage . 3. Check o-ring (19) and replace if necessar y . 4. Remov e fluid contro[...]

  • Page 13

    Repair 312578H 13 Reassembl y 1. Install air control v alve assemb ly (5) with v alve turned fully counterclockwise to out- er most position. T orque to 8 5-90 in-lb (9.6-10.2 N•m). 2. Install air inlet v alv e assemb ly (27) with v alve turned fully counterclockwise to out- er most position. T o r que to 205-215 in-lb (23.2-24.3 N•m). 3. Lubri[...]

  • Page 14

    Parts 14 312578H Pa r t s 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 bef ore installing nozzle (11). Inser t spreader (15) with tapered end facing rear of gun. Inser t u- cup (16) with open end f acing front of gun. Apply lubricant. Apply lo[...]

  • Page 15

    Parts 312578H 15 ★ Included in Gun Repair Kit 289790. ✖ Included in T r igger Repair Kit 289143 (contains 5 of each par t). + Included in Needle P acking Repair Kit 289455 (contains 5 of each par t). * Included in Air V a lve Repair Kit 289408. ◆ Included in Air Cap Seal Kit 289791 (contains 5 of each P ar t). ✓ Included in Retaining Ring K[...]

  • Page 16

    Repair Kits 16 312578H Repair Kits Without Siphon Cup With Siphon Cup Needle Tips Model Spray T ype Nozzle Size in. (mm) Air Cap Kit (13a-13c) Nozzle Kit (11, 19) Needle Assembl y Kit (9a-9c) Needle/ Nozzle Kit (9a-9c, 11, 19) Needle Tip Kit (9c, 5-pac k) 289991 Conv entional 0.055 (1.4) 289769 289560 289788 289487 288984 289992 Conv entional 0.070[...]

  • Page 17

    Accessories 312578H 17 Accessories Repair Kits Air V alves T est Gauges Cleaning Kit Hoses Cups 3M ™ PPS ™ Cups and Accessories Tips P ar t No. Description 289455 Needle P acking Repair Kit 289790 Gun Repair Kit 289791 Air Cap Seal Kit 289143 T r igger Repair Kit 289408 Air V alv e Repair Kit 289079 Retaining Ring Kit 24C269 Fluid Inlet Fitting[...]

  • Page 18

    Related Manuals 18 312578H Related Manuals Manual Langua ge 313074 Chinese 313076 Dutch 313077 Finnish 313078 F rench 313079 German 313081 Italian 313082 J apanese 313083 K orean 313085 P or tuguese 313086 Russian 313087 Spanish 313088 Swedi sh[...]

  • Page 19

    Technical Data 312578H 19 Te c h n i c a l D a t a * Produces 10 psi (0.07 MP a, 0.7 bar) spra ying pressure at air cap . ** All readings were tak en with th e fan v alv e fully open (fan full size) at the assumed operator position. Sound pow er wa s tested per ISO 9614-2. Maximum Air Inlet Pressur e . . . . . . . . . . . . . . . . . . . . . 100 ps[...]

  • Page 20

    All written and visual data cont ained in this document reflec ts t he latest product information available at the time of publication. Graco reserve s the right to make changes at any t ime without notice. Original instructions. This manual contains English. MM 3125 78 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, K[...]