Graco 3A0149E manual

Instr uctions - P ar ts List G15/G40 Spra y Gun 3A0149E EN A lightweight line of air-assi sted spra y guns for spra ying and finishing a v ariety of paints and coatings, par ticularl y in ap plications requiring unifor m atomization and high transfer efficiency . For pr ofessional use only . Important Safety Instructions: Read all warnings and inst[...]

2 3A0149E Contents Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 W arnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 T ypical Installation . . . . . . . . . . . . . . . . . . . . . . . . 6 V entilate the Spra y B[...]

Models 3A0149E 3 Models Pa r t S e r i e s Maximum W orking Air Pressure psi (MP a, bar) Maximum W orking Fluid Pres sure psi (MP a, bar) Descripti on Includ es: 24C853 A 100 (0.7, 7. 0) 1500 (10.5, 10 5) G15 Medium Pressure Air-Assisted Spra y Gun, Carbide Seat and Ball 24C866 Air Cap with pin 24C854 A 100 (0.7, 7. 0) 1500 (10.5, 10 5) G15 Medium [...]

Warnings 4 3A0149E Wa r n i n g s The f ollowing ar e general w ar nings related to the se tup , use, g rounding, maintenance , and repair of th is equipment. Additional, more specific war nings may be f ound thro ughout the body of this manual wh ere applicab le. Symbols that appear in the bod y of the manual ref er to these general w ar nings . W[...]

Warnings 3A0149E 5 EQUIPMENT MISUSE HAZARD Misuse can cause death or ser ious injur y . • Do not oper ate the unit when f ati gued or under the inf luence of drugs or alcohol. • Do not e xceed the maximum w orking pressure or temperat ure rating of the lowest r ated system component. See Te c h n i c a l D a t a in all eq uipment manuals. • U[...]

Installation 6 3A0149E Installation T ypical Installation NO TE: The typical installation shown in F IG . 1 is only a guide f or selecting and insta lling air-assisted spra y sys- tems. Contact your Graco dist ributor for assistance in designing a system to meet your needs . V entilate the Spra y Booth Gr ounding Key: A Air Line Filter B Air Shutof[...]

Installation 3A0149E 7 Air Line 1. Install an air filter (A) on the gun air line to ensure a dr y , clea n air supply to the gun. D ir t and mo isture can ruin the appear ance of y our finishe d workpiece. See F IG . 1. 2. Install an air pressure reg ulator (C) on the gun air line to control air pressur e to the gun. 3. Install an air shutoff v alv[...]

Setup 8 3A0149E Setup Flush Bef ore Using Equipment 1. The equipment was tested wi th lightweight oil, which is left in the f luid passages to prot ect par ts. T o av oid contaminat ing your fluid with o il, flush th e equipment with a compatib le solve nt bef ore using the equip- ment. See Flushing and Cleaning , page 14. 2. Relie v e the pressure[...]

Setup 3A0149E 9 Rever se-A-Clean ® (RA C) Tip Assembl y Model 24C857 guns use a Re verse-A-Clean ® (RAC) tip . T o assemble the RA C tip , in sert the seat housing into the air cap assembly . Inser t the SwitchTip . Inser t the gask et seat. Screw the RA C tip assembly onto the gun and tighten firmly by hand. F IG . 7 F IG . 8 F IG . 9 TI7196A TI[...]

Operation 10 3A0149E Operation Be sure to read and f ollo w the Wa r n i n g s on pages 4 and 5 and throughou t the te xt of this instruction manual. K eep the w allet sized w arning card (222385), provid ed with the gun, with the op erator of this equipmen t at all times . The card contains impor tant treatme nt inf or ma- tion should a skin injec[...]

Operation 3A0149E 11 How the Air -Assisted Spra y Gun Operates The air-assisted spra y gun combines airless and air spra ying concepts . The spra y ti p shapes the fluid into a f an patter n, as doe s a conv entional airle ss spra y tip . Air from the air cap fur the r atomizes the fluid and complete s the atomizatio n of the paint tails into the p[...]

Operation 12 3A0149E HVLP Operation NO TE: F or HVLP oper ation, the atomiza tion air must not e xceed 10 psi. Use HVLP V erification Kit 24C788 to v er- ify air psi. NO TE: The re is no f an adjustment when using RAC tips and caps . Fluid Application Alwa ys hold th e gun at a right angle from the surf ace. Do not make an arc wi th the gun as it c[...]

Daily Gun Care, Flushing, and Cleaning 3A0149E 13 Dail y Gun Care , Flushing, and Cleaning NO TICE Meth ylene chloride with f orm ic or propionic acid is not recommended as a flushing or cleaning solv ent with this gun as it will damage aluminum and n ylon componen ts. NO TIC E Do not use any cle aning method which ma y allo w solv ent into the gun[...]

Daily Gun Care, Flushing, and Cleaning 14 3A0149E General System Maintenance 1. Relie v e the pressure, pag e 10. 2. Clean the fluid and air line f ilters daily . 3. Chec k f or any fluid leakage from the gun and fl uid hoses. Tighten fittings or re place equipment as needed. 4. Flush t he gun before changing co lors and wh ene ver yo u are done op[...]

Daily Gun Care, Flushing, and Cleaning 3A0149E 15 5. Increas e the pressure slowly . P oint the gun down into a grou nded metal container , and flush the gun with solv ent until all tr aces of fluid are remo ved from the gun passag es. 6. T ur n off the solv ent supply . 7. Relie ve the pressure . 8. Disconnect the solv ent supply hose (T) fro m th[...]

Daily Gun Care, Flushing, and Cleaning 16 3A0149E 13. If th e diffuser was removed, trigg er the gun wh ile yo u reinstall the diffuser ( 5) with the gun tool (30). Tighten the diff user securely to obta in a good seal. T orque to 155-165 in-lb ( 18-19 N•m). When p roperly tightened, the flange will bottom out on the gun. 14. Install the air cap [...]

Daily Gun Care, Flushing, and Cleaning 3A0149E 17 Rotate the Switc hTip . Disengage the trigger loc k. T r igger the gun into a pail to clear the clog. Engage the trigger loc k . Return the Sw itchTip to its or iginal position. Disengage the trigger loc k and contin ue spra ying. F IG . 28 F IG . 29 Do not point gun at any one or at any part of the[...]

Troubleshooting 18 3A0149E T r oubleshooting NO TE: • Chec k all possible reme dies in the troubl eshooting char ts bef ore disassemblin g the gun. • Some improper p atterns are caused by the improper balance be tween air and fluid. Prob lem Cause Solution Fluid leakag e from back of fluid packing area. W or n pac kings or needle shaft. Replace[...]

Troubleshooting 3A0149E 19 Fluttering or spitting spray . Insufficient fluid supply . Adjust fluid regulator or fill fluid supply tank. Air in paint supply line . Chec k, tighten pump siphon hose connec- tions , bleed air from paint line . Attempting to “f eather” (p ar tially trigger the gun). Cannot “f eather” with an AA gun. Feather will[...]

Repair 20 3A0149E Repair Repair Kits NO TE: • Seal Repair Kit 249422 is av ailab le. F or best results, use all the ne w par ts in the kit. Kit part s are marke d with an asterisk, f or e xample (7*). • Plastic Seat Repair Kit 24942 4 and Carbide Seat Repair Kit 249456 are av ailab le and can be used with both Model G15 guns and Model G40 guns [...]

Repair 3A0149E 21 7. Reinstall th e seat gasket (5b , carbide models only), seat (5c), and seat n ut (5d). T orque to 45-50 in-lb . Be sure not to ov er ti ghten the nut. NO TE: • When reinstalling the carbi de seat (5c), the tapered end of the seat (red side) m ust point to ward th e gun tip . • The plastic seat (5c , model 24C854 guns), can b[...]

Repair 22 3A0149E Air V alve Repair 1. Unscrew the spr ing cap (11) from th e back of the gun body ( 1) using th e gun tool (3 0). Remove the two sprin gs (15 and 19) and th e shaft (9). 2. Push the air v alv e assemb ly (8*) out the bac k of the gun. See F IG . 39. 3. Inspect the u-cup ( 7*) in the gun body (1). If the u-cup is wor n or lea king, [...]

Repair 3A0149E 23[...]

Repair 24 3A0149E Reassembl y NO TE: See Repair Kits , page 20. 1. Install the tube gask et (22*) in the gun. Handtight en the fluid tube con nector (C) into th e gun’ s fluid inlet. Handtighten th e air inlet fitting (17) and screw (20). T orque the fluid tu be connector to 15 0-160 in-lb (17-18 N•m). T orque the air inlet f itting to 210-220 [...]

Repair 3A0149E 25 F IG . 43 1 2 3 4 5a 6 (G15 only) *7 *8 9 11 12 13 14 15 16 17 18 19 20 21 *22 33 6 *6b *5e *5f *5g 5b ✖ (carbide only) 5c† ✖ 5d† ✖ 4 6 6 3 7 *2a 3 1 5 3 3 3 TI6579D 10 9 1a 6 (G40 only) 10 11 *6a T orque to 150-160 in-lb (17-18 N •m). Lubricate lightly . T orque to 155-165 in-lb (18-19 N •m). T orque to 20-30 in-lb [...]

Parts 26 3A0149E Pa r t s P art No. 24C853 a nd 24C854, G15 Gun P art No. 24C855, G40 Gun P art No. 24C856, G40 Gun, High Flow 1 2 3‡ 4 5a 6 (G15 only) *7 *8 9 11 13‡ 14‡ 15 17 19 21 *22 33 ◆ *6b *5e *5f *5g 5b ✖ (carbide o nly) 5c† ✖ 5d† ✖ *2a 1a 6 (G40 only) ◆ *6a 21a (G15 only) TI6579D 29 30 28* 12 16 18 20 16 (24C856 only) ([...]

Parts 3A0149E 27 P art No. 24C854, G15 Gun with Plastic Seat P art No. 24C853, G15 Gun with Ca rbide Seat ▲ Replacement Danger and W ar ning labels, tags , and cards are av ailab le at no cost. * Included in Seal Repair Kit 249422 (purchase separately) . † Included in Plastic Sea t Repair Kit 249424 (purchase separ ately). ✖ Included in Carbi[...]

Parts 28 3A0149E P art No. 24C855, G40 Gun with Standar d Tip P art No. 24C856, G40 Gun, High Flow ▲ Replacement Danger an d W ar ning labels , tags, and cards are av ailab le at no cost. * Included in Seal Repair Ki t 249422 (purch ase separately). ✖ Included in Carbide Seat Re pair Kit 249456 (purchase separ ately). ‡ Included in T rigger R[...]

Parts 3A0149E 29[...]

Parts 30 3A0149E P art No. 24C857, G4 0 Gun with RA C Tip 1 2 3‡ ★ 4 ★ 5a *7 *8 9 11 13‡ 14‡ 15 16 17 19 20 *22 ★ *5f ★ *5g ★✖ 5b *2a 1a TI7203B 29 30 28* 33a ★ 35 ★ 6 33 ★ *6a 5c ✖★ 5d ✖★ TI6580A[...]

Parts 3A0149E 31 P art No. 24C857, G4 0 Gun with RA C Tip ▲ Replacement Danger and W ar ning labels, tags , and cards are av ailab le at no cost. * P ar ts included in Seal Repair Kit 24 9422 (purchase separately) . ✖ P ar ts included in Carbide Seat Repa ir Kit 249456 (purchase separ ately). ‡ P ar ts included in T r igger Repair Kit 2 49585[...]

Spray Tip Selection Ch art 32 3A0149E Spra y Tip Selection Char t Spra y Tips, f or use with G15/G40 Air Cap AAM Fine Finish Spray Tips Recommended f or high finish quality application s at low and med ium pressures . Order desir ed tip , Part No. AAMxxx, where xxx = 3- digit number from matrix below . GG4 Industrial Spra y Tips Recommended f or hi[...]

Spray Tip Selection Chart 3A0149E 33 AAF Fine Finish Pre-Orifice Spra y Tips Recommended f or high finis h quality applica tions at low and med ium pressures . AAF ti ps hav e a pre-orifice that assists in atomizing sheer thinn ing materials, including lacq uers. Order desired tip , Part No. AAFxxx, where xxx = 3-digit n umber from matrix belo w . [...]

Spray Tip Selection Ch art 34 3A0149E RA C SwitchTips, f or use with G40 RA C Air Cap, Continued NO TE: All tips in the Spra y Tip Selection Char ts below can be used with Model G40 guns equ ipped with RA C air cap 24C921 . FFT Fine Finish RA C Spra y Tips Order desir ed tip , Part No. FFTxxx, wher e xxx = 3-digit nu mber from matrix below . WRX Wi[...]

Accessories 3A0149E 35 Accessories Use Only Genuin e Graco P ar ts and Accessories Air Fitting and T ubing Kit 249473 Alternative-style connect or for air inlet and hose. 3/8 in. to 1/4 npt( f) Push-T o-Lock fitting, 25 ft (7.62 m) long, 3/8 in. (9.5 mm ) ID , nylon tub ing. Air Hose 241811 100 psi (0.7 MP a, 7 b ar) Maximum W orking Pressure 1/4-1[...]

Accessories 36 3A0149E Plastic Seat Re pair Kit 249424 Kit includes replaceme nt plastic seat (pac k of 10), and seat nut f o r Model G15 gun. SST Seat Repair Kit 287962 Kit includes assemb led diffuser with SST seat f or use with pigmented acid catalyz ed materials. F or use with gun 24C854 only . Carbide Seat Re pair Kit 249456 Kit includes repla[...]

Accessories 3A0149E 37 P art Interc hangeability Guide NO TE: The ne w retaining ring is blac k and has coarse threads , while the old retainin g ring is silver and has fine threads. Any interchange will damage the threads on the ring and gun body . * Older model par t numbers incl ude 288xxx, 287xxx, 249xxx. Description Par t N um b e r New Models[...]

Dimensions 38 3A0149E Dimensions 6.1 in. (15.5 cm) 8.0 in. (20.3 cm) 6.9 in. (17.5 cm) 5.0 in. (12.7 cm) Model G15 TI6583A 6.9 in. (17.5 cm) 5.8 in. (14.7 cm) 8.0 in. (20.3 cm) 6.9 in. (17.5 cm) Model G40 TI6845A[...]

Technical Data 3A0149E 39 Te c h n i c a l D a t a * All readings wer e taken with t he fan valv e fully closed (f ull fan siz e), at 20 psi (140 kP a, 1.4 bar) and 100 psi (0.7 kP a, 7 bar), and at the assumed o perator position . Sound P ower was tested to ISO 9614-2. Category Data Maximum Working Flui d Pressure . . . . . . . . . . . . . . . . .[...]

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. MM 3A0149 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Korea[...]