Graco Inc. G40 manuale d’uso

311052E ENG Instr uctions - P ar ts A utomatic G40 Air -Assisted Spra y Guns For air- assisted spraying of paints and co atings. For prof essional use only . Appro ved for use in e xplosive atmospheres. 4000 psi (28 MP a, 280 bar) Maximum W orking Fluid Pressure 100 psi (0.7 M P a, 7 bar) Maximum Working A ir Pressure See page 3 f or model inf or m[...]

Related Manua ls 2 311052E Contents Related M anuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 W arnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V ent[...]

Models 311052E 3 Models G40 Standard Spray Gun, 28804 6, Series A • High pressu re spra y gun with Carb ide ball and Car- bide seat. • Includes AAP series tip of choice. G40 Plastic Seat Spray Gun, 28804 4, Series B • Medium pressure spra y gun with SST ball and plas- tic seat; for acid catalyzed or thin f luids. • Best results when used wi[...]

Warnings 4 311052E Wa r n i n g s The f ollowing warnings are f or the setup , use, groundin g, maintenance, and repair of this equ ipment. The exclama- tion point symbol alerts you to a gener al warning and the hazard symbol ref ers to procedure -specific risk. Refer bac k to these wa r nings. Additional, product- specific warnings ma y be found t[...]

Warnings 311052E 5 PRESSURIZED EQUIPMENT HAZARD Fluid from the gun/dispense valv e, leaks , or ruptured components can splash in the e yes or on skin an d cause serious injury . • F ollow Pressure Relief Procedure in this manual, when you stop spra yin g and before cleaning, chec king, or ser vicing equipment. • Tighten all fluid conn ections b[...]

Installation 6 311052E Installation V entilate Spra y Booth Configure Gun and Manif o ld The gun is supplie d with an internal fluid plug and seals (5, 6, 7). T o use the gun in a circulating system, remov e the internal plug. In a non-circulatin g system, leav e the plug in place to minimiz e flush time. Cir c ulating System 1. Apply anti-seiz e l[...]

Installation 311052E 7 Install Air Fittings 1. Install the supplied 1/4 in. tube fitting int o the cylin- der (CYL) air port. 2. Install 3/8 in. tube fit tings into the atomization (A T OM) air port and the fan ( F AN) air por t. Gr ound System The f ollowing groundin g instr uctions are minimum requirements f or a system. Y our system may include [...]

Installation 8 311052E Mount Gun Reciprocating Arm Rod Mount T o mount t he gun on a reciprocating ar m rod [0.5 i n. (13 mm) diameter maxim um]: 1. Inser t the mounti ng bar (A) through the hole in the manif old as shown in F IG . 3. 2. Secure the gun to t he bar by tightening the mount- ing screw (B). Stationary Suppor t T o mount the gun on a st[...]

Installation 311052E 9 Connect Air Line 1. Install an air/water separator an d an air line filter to ensure a clean, dry air supply to the gun. Dirt and moisture in the line can r uin the appear ance of your finished piece. 2. Install an air pressure regulator on e ach gun air sup- ply line. 3. F or manifolds with separat e f an and atomization por[...]

Installation 10 311052E Connect Fluid Line 1. Install a fluid filter an d drain valv e(s) close to the pump's fluid outlet. 2. Install a fluid pressur e regulator to control fluid pres- sure to the gun. 3. Install a fluid shutoff v alv e to shut off the fluid supply to the gun. 4. Install an in-line fluid filte r on the gun fluid inlet (F) to [...]

Setup 311052E 11 Setup Flush Spra y Gun Bef ore running any paint through th e spra y gun: 1. Flush the g un with a solvent that is com patible with the fluid to be spr ay ed, using the low est possible fluid pressure and g rounded metal container . 2. P erf orm Pressure Relief Pr ocedure ; see page 12. Select a Spra y Tip and Air Cap The fluid flo[...]

Operation 12 311052E Operation Pressure Relief Pr ocedure 1. T urn off the air and f luid supply to the gun. 2. Close the bl eed-type master air v alve (required in the system). 3. T r igger the gun into a g rounded metal wast e con- tainer to reliev e the fluid press ure. 4. Open the pump dr ain valv e (required in the system) to reliev e fluid pr[...]

Operation 311052E 13 Appl y Fluid The spra y gun has a b uilt-in lead and lag operat ion. When trig gered, the gun be gins emitting ai r bef o re the fluid is discharged. When the t r igger actuation air is stopped, the fluid stops bef ore the air flo w stops. This helps assure the spr ay is atomiz ed and prev ents fluid build up on the air cap and[...]

Maintenance 14 311052E Maintenance Daily Gun Care CA UTION Meth ylene chloride with formic or propionic acid is not recommended as a flu s hing or cleaning solv ent with this gun as it will damage aluminum and nylon compo- nents . CAUTION Solv ent left in gun air passages could result in a poor quality pain t finish. Do not use any cleaning method [...]

Maintenance 311052E 15 General System Maintenance 1. P erf orm Pressure Relief Pr ocedure , page 12. 2. Clean the fluid and air line f ilters daily . 3. Chec k for an y fluid leakage from the gun an d fluid hoses. Tighten fittings or replace equip ment as needed. 4. Flush t he gun before changing co lors and wh ene ver yo u are done operating the g[...]

Maintenance 16 311052E 7. T urn off the solvent supp ly . 8. P erform Pressure Relief Procedure , page 12. 9. Disconnect the solv ent supply hose from the gun. 10. Dip the end of a soft-bristle brush into a compatib le solv ent. Do not continuously soak the brush's bris- tles with solv ent and do not use a wire brush. 11. With the gun poin ted[...]

Troubleshooting 311052E 17 T r oubleshooting General T roub leshooting Check all possib le remedies in the troubleshoot ing char ts bef ore disassembling th e gun. Some improper patte r ns are caused by th e improper balance betw een air and fluid. Ref er to Spray Pattern T roubleshoo ting , page 19. Prob lem Cause Solution Fluid leakage throu gh v[...]

Troubleshooting 18 311052E Fluid needle will not trigger . Loos e or missing fluid needle stop (21) or setscrew (19). Brok en fluid needle (14). Air leaking around piston (20). Swollen piston o-ring (22). Insufficient air pressure on tr igger . Spra y tip (9) is plugged . Fluid filter is plugged. Plug (5) is in incorrect fluid port. Replace stop or[...]

Troubleshooting 311052E 19 Spra y P attern T r oubleshooting Prob lem Cause Solution Flutter ing spra y . Insufficient flu id supply . Air in paint supply line. Adjust fluid regulator or fill fluid sup- ply tank. Chec k, tighten siphon hose connec- tions , bleed air from pa int line. Spitting spr ay . W or n diffuser-seat ( 10) or needle (14) ball.[...]

Service 20 311052E Service Items Needed f or Service • 1/16 in. He x Wrench - provided •3 m m H e x W r e n c h • Adjustab le Wrench •4 m m H e x W r e n c h • 5/16 in. Nut Driver • Pliers • Lubricant part no . 111265; see Accessories , page 34, to order • Compatib le Solvent Disassembl y 1. P erform Pressure Relief Procedure , page[...]

Service 311052E 21 10. If gask et (15) needs to be r eplaced, unscrew the two screw s (18) and separate the flu id housing (2) and piston housin g (1). Inspect gask et (16) and replace if needed. 11. Remove the large o-rin g (22) from the piston and the smaller o-ring (23) from t he piston sh aft. Remov e the tw o o-rings (25, 26) fr om each of the[...]

Service 22 311052E F IG . 17 SERVICE NOTES: Lubricate threads with anti-seize lubri cant Lubricate with light-weight oil Do not lubricate Torque to 155-165 in-l b (18-19 N•m) Apply semi-permanent an aerobic sealant Torque to 4-5 in-lb (0.45-0.56 N•m) Tighten cap (27) u ntil it bottoms out 4 3 2 8 7 6 5 Cutaway View: Part No. 288044 Gun Shown 30[...]

Service 311052E 23 Diffuser Seat Replacement 1. P erf orm Pressure Relief Pr ocedure , page 12. 2. Remove gun from manifold. 3. Remove the air cap reta ining r ing (8), air ca p (30), and spra y tip (9). 4. T r igger the gun (o r remove ca p (27) and spr ings (28, 29)) to pull the needle hous ing off the seat w hile you unscre w the diffuser (10) f[...]

Parts 24 311052E Pa r t s F IG . 18 2 17 16* 15* 28 7 † 27 29 8 10a SERVICE NOTES: Lubricate threads with anti-seize lub ricant Lubricate with light-weight oil Do not lubricate Torque to 65 in-lb (7.3 N•m) Apply semi-permanent anaero bic sealant Torque to 4-5 in-lb (0.45-0.56 N•m) Tighten cap (27) until it bottoms out Used on non-ci rculating[...]

Parts 311052E 25 Pa r t s ◆ Model 288044 only . ❖ Model 288046 only . ★ Model 288053 only . † Included in Fluid Seal Repair Kit 288 136. * Included in Air Seal Repair Kit 28 8171. ✓ Included in Seat Repair Kits 249424 (plastic) or 249456 (carb ide). ✿ Pa r t n o t fo r s a l e . Ref. No. Pa r t No. Description Qty . 1B O D Y 1 2 HOUSING[...]

Parts 26 311052E P ar t No. 288217 Nor th America Manifold with side fluid ports P ar t No. 288218 International Manif old with side fluid por ts ❄ Not shown. ❖ P ar t No . 288217 only . ◆ P ar t No . 288218 only . Ref. No. P a rt No. Description Qty . 101 MANIFOLD , side fluid po r ts 1 103 1 120388 ❖ FITTING, tube, air inlet; 1/4 in. OD t[...]

Parts 311052E 27 P ar t No. 288221 Manif old with bottom fl uid por ts ❄ Not shown. Ref. No. P a rt No . Descri ption Qty . 101 MANIFOLD , bottom fluid ports 1 103 120388 FITTING, tube, air inlet; 1/4 in. OD tube x 1/8 npt(m) 1 105 114246 SCREW , set; 5/16; 0.437 in. long 1 107 166846 NIPPLE, SST; 1/4 npsm, straight pipe thre ad x 1/4 np t 2 108 [...]

Parts 28 311052E P ar t No. 288224 High Pressure Air-Assisted Manifold with side flu id por ts and fan adjustment valve P ar t No. 24C3 43 International Manif old with side fluid por ts ❄ Not shown, optional size . ---- Not sold separately . ❖ P ar t No . 288224 only . ◆ P ar t No. 24C343 only . Ref. No. P art No. Des cription Qty . 101 ---- [...]

Parts 311052E 29 P ar t No. 288160 Rear P or t Manifold, Nor th Amer ica P ar t No. 288211 Rear P or t Manifold, International ❖ P ar t No . 288160 only . ◆ P ar t No . 288211 only . Ref. No. P ar t No. Description Qty . 101 MANIFOLD , aluminum 1 103 FITTING, fl uid path 2 15H521 ❖ 1/4 npsm 15J003 ◆ #5 JIC 105 116475 SCREW , SHCS, M4 x 12 2[...]

Notes 30 311052E Notes[...]

AAP Series Tip and Air Cap Selection Charts 311052E 31 AAP Series Tip and Air Cap Selection Char ts AAP Series Precision Spray Tips . * Tips are tested in w ater . † Tip sizes include a 150 mesh tip filter Air Cap Order desired tip (P ar t No . AAPxxx) where xxx is the size code f or the char t. Tips are physically marked with Xxxx, where xxx is [...]

LTX Series RAC Tip Selectio n Charts 32 311052E L TX Series RA C Tip Selection Char ts For use with G40 RA C Housing * Tips are tested in w ater . ✖ P attern width measured withou t airflow . L TX Rever s e-A-Clean (RA C) Spray Tips • L TX R A C spray tips include a metal fluid se at and r ubber fluid seal. • G40 RA C conv ersion kits are av [...]

LTX Series RAC Tip Selection Charts 311052E 33 RA C Switch Tips FFT Fine Finish RA C Spray Tips WRX Wide RA C Spray Tips * Tips are tested in water . ❖ Measured with NO airflow . Air assist will tend to reduce patte r n lengths by 1 in. to 2 in. Order desired ti p (P ar t No . FFTxxx) wh ere xxx is the size code f or the char t. Orifice Size in. [...]

Accessories 34 311052E Accessories Gun Manif olds Orde r separately; not i ncluded with gun (See Par t s , page 25) P ar t No. 28821 7 Nor th America Manifold with side fluid ports P ar t No. 28821 8 International Manif old with side fluid por ts P ar t No. 28822 1 Manif old with bottom fl uid por ts P ar t No. 28822 4 High Pressure Air Assisted Ma[...]

Accessories 311052E 35 Air Cap Seal Kit 253032 P ack of fiv e seals and fiv e o-r ings f or the air cap assembly . Plastic Seat Repair Kit 249424 Kit includes r eplacement plastic seat (pack of ten ), and seat nut. SST Seat Repair Kit 287962 Kit includes assemb led diffuser with SST seat (15H2 82) f or use with pigmented acid catalyz ed materials. [...]

Dimensions 36 311052E Dimensions F IG . 24 2.0 in. (50.8 mm) 3.86 in. (98.0 m) 3.0 in. (76.2 mm) 4.9 in. (124 .5 mm) TI8113a TI8127a 1.375 in. (34.9 mm) 2.0 in. (50.8 mm) 2.40 in. (60.96 mm)[...]

Mounting Hole Layout 311052E 37 Mounting Hole La y out F IG . 25: TI8107a 0.4 in. (10.2 mm) (6.3 mm) h oles 0.805 in. (2 0.5 mm) 0.187 in. (4 .8 mm) 1.375 in. (35 mm) 2.125 in. (54 mm) TI8127a 1.750 in. (44.5 mm) Two M5 x 0.8 x 0.25 in. Two 0.128 dia meter x 0.31 in. (7.8 mm) deep holes (for alignment pin) Remove set screws when using bottom mounti[...]

Mounting Hole Layout 38 311052E Mounting Hole La y out F IG . 26: Mounting Hole La youts TI8227a Rear Port Manifold Retrofit Adapter Plate Gun with Retrofit Adapter Plate TI8178a 2.007 in. (50.98 mm) 1.375 in. (34.93 mm) 0.736 in. (18.69 mm) 2.250 in. (57.15 mm) Gun with Rea r Port Manifold 1.765 in. (44.83 mm ) 2.325 in. (59.06 mm) 2.400 i n. (60.[...]

Technical Data 311052E 39 Te c h n i c a l D a t a T riggering Speed These v alues apply to a new gun with a 6 ft . (1.8 m), 1/4 in. (6.3 mm) OD cylinder air line and a 0.019 in . tip. These v a lues will vary slightly with use and with variations in equipment. Sound Data (dBa) † Sound pressure me asured 3.28 fe et (1 meter) from equipment. ‡ S[...]

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. T his manual contains English. MM 311052 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Kore[...]