Manuale d’uso / di manutenzione del prodotto 309295N del fabbricante Graco
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For use in Class I, Div . I hazar dous locations usi ng Gr oup D spray materials. For use in Gr oup II, Zone 1 areas using Group IIA spra y materials. For Prof essional Use ONL Y . 100 psi (0.7 MP a, 7 bar ) Maximum Air Inlet Pressur e 3000 psi (21 MP a, 210 ba r) Maximum W orking Fluid Pressure U .
2 309295N T able of Contents List of Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 W arnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 W ar ning Symbol . . . . . . . . . . . . . . . . . . . . . . . . . 4 Caution Symb ol .
List of Models 309295N 3 List of Models P art No. Model Description Operation Manual 244572, Series C PRO Xs4 AA Manual Air-Assist ed Spra y Gun 309296/3W9296/ 3Z9296 244573, Series C PRO Xs4 AA Manua.
Warnings 4 309295N Wa r n i n g s W arning Symbol This symbol aler ts you to t he possibility of ser ious injur y or death if y ou do not f o llow the inst ructions. Caution Symbol This symbol aler ts you to t he possibility of damage to or destruction of equipment if y ou do not follo w the instruc- tions.
Warning 309295N 5 Skin Injection Hazard Spra y from the gun, hose lea ks, or ruptured compon ents can inject fluid into y our body and cause an e xtremely serious injury , including the need f or amputation. Splashing fluid in the e yes or on the skin can also cause ser ious injur y .
Introductio n 6 309295N Intr oduction How the Electr ostatic AA Spra y Gun W orks The air-assisted spra y gun combines airless and air spra ying concepts. The spra y tip shapes the fluid into a f an pattern, as does a con v entional airless spra y tip.
Introduction 309295N 7 Gun Overview The electrostatic gun includ es the fo llowing controls . See F IG . 1. • Air cap/tip guard and sp ray tip. Nev er spra y with- out the tip guar d. See page 46 f or spra y tip sizes . • T rigge r safety lock. Pre vents the gu n from spray- ing.
Installation 8 309295N Installation Install the System F IG . 2. show s a typical electr ostatic air-assisted spra y system. It is no t an actu al s ystem design. For assistance in designing a system to suit y our par ticular needs , con- tact y our Graco distribut or .
Installation 309295N 9 Fig. 2. Typica l Installatio n Key ti1514b AB * C* D *E F G H J* K L M N O P Q* *R S T U* V W C Non-Hazar dous Area Hazar dous Area D X The air supply to the gun must be electrically interlocked with the v entilators to prev ent the power supply from operating wit hout ventilating f ans on.
Installation 10 309295N Connect the Air Line 1. Connect the G raco Ground ed Air Supply Hose (R) between the air supply line and th e gun's a ir inlet (V). The gun a ir inlet fitting has a left-h and thread . Connect the air supply hose g round wire (Q) to a true ear th ground .
Installation 309295N 11 Connect the Fluid Line 1. Bef ore connecting the fluid line (N), b low it out with air and flush it with solvent. Use solv ent which is compatible with the fluid to be spray ed . 2. Install a fluid regulator (M ) on the fluid line to cont rol fluid pressure to t he gun.
Installation 12 309295N Gr ounding The follo wing are m inimum grounding requirements for a basic elect rostatic sys tem. Y our system may include other equipment or objects which must be g rounded. Check yo ur local electric al code for detailed groundin g instru ctions.
Installation 309295N 13 Chec k Electrical Gr ounding 1. Hav e a qualified e lectr ician check the electr ical groundin g continuity of the spr a y gun and air hose. 2. T urn the ES ON/OFF valv e OFF . 3. T ur n off the air and flui d supply to the gun.
Installation 14 309295N Chec k Fluid Resistivity Graco P ar t No. 7228 86 Resistance Meter and 72286 0 Probe are a v ailab le as accessories to chec k that the resistivity of the fluid b eing spra yed meets the require- ments of an electrostatic air-assist ed spra y system.
Operation 309295N 15 Operation Low V oltage Adjustment (Smar t Guns Only) The ES HI/LO s w itch enab les you to switch be tween full v oltage and a low er v oltage output. The lo wer v oltage is f actory set, but can be adjusted . 1. Set the ES HI/LO s witch to LO.
Maintenance 16 309295N Maintenance Flush the Spra y Gun Flush the gun bef ore changing colors , at the end of the da y , bef ore storing, and before repairing the gun. 1. T ur n th e ES ON/OFF valv e OFF . 2. Relie ve the pressure . 3. Remo ve and clean the air cap and the spra y tip.
Maintenance 309295N 17 4. Change the flu id source to solv ent, or disconnect the fluid line an d connect a solv ent supply line to the gun. 5. P oint the gun into a grounded met al pail. Flush until clean solv ent flo ws from the gun. 6. Relie ve the pressure .
Electrical Tests 18 309295N Electrical T ests Electrical components inside the gun aff ect perf ormance and safety . The f ollowing procedures test the co ndition of the pow er supply (18) and ba rrel (16), and electrical continuit y between co mponents .
Electrical Tests 309295N 19 T est P o wer Supply Resistance 1. Remo ve the pow er supply (18) , page 32. 2. Remo ve the turbine alternator (19) fr om the pow er supply , page 33. 3. Measure re sistance from the po wer supply's g round strips (EE) to the spring (18b).
Electrical Tests 20 309295N T est Barrel Resistance 1. Insert a conductive rod (B) into the gun barrel (remo ved f or the pow er supply test) and ag ainst the metal conta ct (C) in t he front of the barre l. 2. Measure the resistance betwe en the conductiv e rod (B) and the ba rrel contact ring (16a).
Troubleshooting 309295N 21 T r oubleshooting NO TE: Chec k all possible remedie s in the T roubleshoo t- ing Char t be f ore disasse mbling the gun. Spra y P attern T r oubleshooting NO TE: Some spra y pattern problems are caused b y the improper balance between air and fluid.
Troubleshooting 22 309295N Gun Operation T r oubleshooting Prob lem Cause Solution Excessiv e spra y f og. Atomizing air pressure too high. Close atomizing air v alv e some, or decrease air p ressure as low as pos- sible; minimum 40 psi (0.28 M P a, 2.
Troubleshooting 309295N 23 Electrical T r oubleshooting * ES indicator light is off when the gun is triggered. Prob lem Cause Solution P oor wrap . ES ON/OFF v alve OFF (0 ).* T ur n ON (I). Gun air pressu re too low . Chec k air pressure to gu n; minimum 40 psi (0.
Repair 24 309295N Repair Pressure Relief Pr ocedure 1. T urn the ES ON/OFF valv e OFF . 2. Lock the trigge r . 3. T ur n off the air b leed v alv es to the fluid source and to the gun. 4. Unloc k the trigger . 5. T rigger the gun into a grounded met al waste con- tainer to r elie ve the fluid pres sure.
Repair 309295N 25 Prepare the Gun f or Service NO TE: • Check all possib le remedies in T roub leshooting before disassembling the gun. • Use a vise with padde d jaws to pre vent damage to plastic par ts. • Lubricate the po wer su pply o-ring (18a) and the plastic end of the flui d tube (14) with dielectric greas e (4 0) .
Repair 26 309295N Tip Guar d, Air Cap, Spra y Tip, or Seat Housing Replacement 1. Prepare g un f or service, page 25. 2. Remove the re taining r ing (27 ), tip guar d (4), air ca p (9a), and spra y tip (3). Y ou may hav e to tur n th e air cap with the tip guard to remov e it.
Repair 309295N 27 5. T r igger the gun an d install the gr ay -colored seat housing (2). Tight en until snug, then 1/4 turn more. 6. Assemb le the spra y tip (3), air cap (9a), and tip guard (4). Mak e sure the electrode (9b) is not dam- aged or missing.
Repair 28 309295N Electr ode Replacement 1. Prepare the gun f or service, page 25. 2. Remove the air cap as sembly , page 26. 3. Pull the el ectrode (9b) out of the bac k of the air cap , using a needle-nose pliers . 4. Push the new electr ode throug h the air ca p hole.
Repair 309295N 29 Fluid T ube Replacement 1. Prepare the gu n f or ser vice, page 25. 2. Disconnect t he bottom fluid tube nut (C). See F IG . 11. 3. Carefully unscre w the top fl uid tube nut (D). 4. Apply dielectric grease (40) to the entire length of the plastic e xtension on the end of the fluid tub e (14).
Repair 30 309295N Fluid Needle Replacement 1. Prepare the gun f or service, page 25. 2. Remo ve the air cap assembly an d seat housing, page 26. 3. Remo ve the barrel (16), page 31 . 4. Remove the tr igger screws (8) and tr igger (30) . 5. Remo ve the spring cap (45) and the sp ring (26a) from the barr el.
Repair 309295N 31 Barrel Remo v al 1. Prepare the gu n f or ser vice, page 25. 2. Carefully loose n the nut (C) from the bracket fluid fit- ting (13). S ee F IG . 16. 3. Loosen the th ree scre ws (11). 4. Hold the gu n handle (17) with one hand a nd pull the barrel (16) st raight off the handle.
Repair 32 309295N P ower Suppl y Remo val and Replacement NO TE: • Inspect the gun ha ndle pow er supply ca vity f or dir t or moisture. Clean w ith a clean , dr y rag. • Do not e xpose gasket (10) to solve nts. 1. Prepare g un f or service, page 25.
Repair 309295N 33 T urbine Alternator Remo v al and Replacement NO TE: Replace turb ine bear ings a fter 2000 hours of operat ion. Order P ar t No . 223688 Bearing Kit. 1. Prepare gun f or ser vice, page 25. 2. Remo ve the powe r supply/alternator assemb ly , page 32.
Repair 34 309295N Atomizing Air Adjustment Va l v e R e p a i r 1. Prepare the gun f or service, page 25. 2. Place a wrench on the fla ts of the v alv e assembly (20) and unscre w it from the handle ( 17). NO TE: Y ou ma y replace the v alve a s an assemb ly (go to step 9) or as individual pa r ts (steps 3-9) .
Repair 309295N 35 Air V alve Repair 1. Prepare the gu n f or ser vice, page 25. 2. Remo ve the barrel, page 31. 3. Remo ve the air v alve cap (25) from the h andle (17). Remov e the spring (15). See F IG . 20. 4. Remove the air valv e (21) with a pliers.
Repair 36 309295N ES ON/OFF V alve Repair 1. Prepare the gun f or service, page 25. 2. Loosen th e screw (48) . Remov e the v alv e. 3. Lubricate the o-r ings (2 2a* and 22b*) with non-sili- cone grease, P ar t No . 111265. Do not ov er-lubr i- cate. 4.
Parts 309295N 37 Pa r t s P art No. 244572 85 kV El ectrostatic Gun, Series C (items 1-50) I O ES ti1366a 4 9a 26 16 11 18 19 *10 17 28 20 22 25 15 21*** 35 13 24 38 8 *6 9b 11 *18a 18b 24a* 30 39 47 See page 38 f or detail vie w s of the altern ator (19), atomizing air adjustm ent valve (20), an d ES ON/OF F valve (22).
Parts 38 309295N TI1487A 20a 20b* 20c 20d Ref. No. 22: ES ON/OFF V alve Ref. No. 20: Atomizing Air Adjustment V a lve Ref. No. 19: Alternator TI1481a 19a* 19b 19b 19c 19d 19e TI1488A 22a* 22b* 22c 22d.
Parts 309295N 39 P art No. 244572 85 kV El ectrostatic Gun, Series C (items 1-50) Ref. No. P art No. Description Qty 1 205264 FIL TER, fluid, inline 1 2 245280 HOUSING, seat 1 3 GG3XXX SPRA Y TIP (customer’ s choice); includes item 3a 1 3a 183459 .
Parts 40 309295N * Included in Air Seal Repair Kit 244781. *** Rubber seal is not r emov abl e. Replacement W ar ning labels, signs, ta gs, and car ds are ava il a bl e at no c os t .
Parts 309295N 41 P art No. 244573 85 kV El ectrostatic Gun, Series C (items 1-59) ti1253a 100 % KV μα 0 HI LO ES I O I O ES 20 See page 42 f or detail vie ws of the alternato r (19), atomizing air adjustment valve (20), and ES ON/OFF valve (22).
Parts 42 309295N P art No. 244573 85 kV Electr ostatic Gun, Series C (items 1-59) TI1488A TI1487A TI1481a 20a 20b* 20c 20d Ref. No. 20: Atomizing Air Adjustment V a lve Ref. No. 19: Alternator Ref. No. 22: ES ON/OFF V alve 19a* 19b 19b 19c 19d 19e 22a* 22b* 22c 22d 22e 22f 22g 48 Ref.
Parts 309295N 43 * Included in Air Seal Repair Kit 244781. *** Rubber seal is no t remov able. Replacement W ar ning labels , signs, tag s, and car ds are ava il a bl e at no c os t . 18 244541 POW ER SUPPL Y , 85 kV ; includes items 18a-18b 1 18a* 10333 7 .
Accessories 44 309295N Accessories Air Line Accessories AirFlex ™ Flexib le Gr ounded Air Hose 100 psi (7 bar , 0.7 MP a) Maxim um W orking Pressure 0.315 in. (8 mm) ID; 1/4 npsm(f) x 1/4 npsm (f) left-hand thread 244963 6 ft (1.8 m) 244964 15 ft (4.
Accessories 309295N 45 Gun Accessories Gun Repair Kit 244781 Air Seal Repair Kit Electr ode Replacement Kit 244917 Includes fiv e electrodes. Inline Fluid Filters 238561 100 mesh filter . Set of three. 238563 60 mesh filter . Set of thre e. Round P attern Kit Provides high er le vel of per fo r mance to electrostatic spra ying.
Spray Tip Selection Char t 46 309295N Spra y Tip Selection Char t Pa r t N o . Fan Width at 10 in. (250 mm) in. (mm) Orifice Siz e in. (mm) GG3107 2-4 (50-100) 0.007 (0.1 78) GG3207 4-6 (100-150) GG3307 6-8 (150-200) GG3209 4-6 (100-150) 0.009 (0.229) GG3309 6-8 (150-200) GG3409 8-10 (200 -250) GG3211 4-6 (100-150) 0.
Technical Data 309295N 47 T echnical Data Loctite® is a registered t rademark of the Loctit e Cor poration. Category Data Maximum W or king Fluid Pressure 3000 psi (21 MP a, 210 bar) Maximum Working Air P ressure 100 psi (0 .7 MP a, 7 ba r) Minimum Air Pressur e to Gun Inlet 40 psi (0.
All written and visual data contained in this document reflects the latest product information available at the time of publica tion. Graco reserves the right to make changes a t any time without notice. Original instructions. This manual contains English.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Graco 309295N è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Graco 309295N - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Graco 309295N imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Graco 309295N ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Graco 309295N, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Graco 309295N.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Graco 309295N. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Graco 309295N insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
