Graco 249377 manual

Instr uctions - P ar ts A utomatic XT Spra y Guns 311051F ENG Airspra y , HVLP , and Compliant guns f or spraying paints and coatings. See page 3 f or model inf or mation. 100 psi (0.7 MP a, 7 bar) Maximum W orking Fluid Pressure 100 psi (0.7 M P a, 7 bar) Maximum Working A ir Pressure Important Safety Instru ctions Read all warnings and instr u ct[...]

Related Manua ls 2 311051F Contents Related M anuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 W arnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Selection Char ts . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Proper Nee[...]

Models 311051F 3 Models * Hardened SST needle tip/nozzle (n ot recommended f or thin fluids). All other models hav e PEEK needle tip . A manif old is required for ea ch gun to be installed. Ref er to the Pa r t s section for m anifold information. Orifice Size in. (mm) HVLP Compliant Airs pray .030 (0.7 5) 249388 249407 249369 .042 (1.0) 249389 249[...]

Warnings 4 311051F Wa r n i n g s The f ollowing wa r nings are for t he setup, use , grounding, maintenan c e, and repair of this equipment. The e xclama- 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 fou [...]

Warnings 311051F 5 T O XIC FLUID OR FUMES HAZARD T oxic fluid s or fumes can cause serious injur y or death if splashed in the e yes or on skin, inhaled, or s wallowed. • Read MSDS’ s to know the specific hazards of the fluid s you are using. • Store hazard ous fluid in approv ed containers , and dispose of it according to app licable guideli[...]

Selection Charts 6 311051F Selection Char ts TERMS: Light Fluid: Up to 18 seco nds with No. 2 Zahn cup (20 centipoise) Medium Fluid:19 to 28 seconds with No . 2 Zahn cup (20-64 centipoise) Heav y Fluid:Greater than 28 se conds with No . 2 Zahn cup (gre ater than 64 centipoise) -- 2.8 V olatile Organic Compounds, High-solid P oly uretha nes, Heavy W[...]

Selection Charts 311051F 7 Compliant Spra y Gun Assemblies * Hardened SST needle tip/nozzle (n ot recommended f or thin fluids). All other models hav e PEEK needle tip . † With Fluid Control Knob (f or fine adjustmen t of fluid flow). Airspra y Gun Assemblies * Hardened SST needle tip/nozzle (n ot recommended f or thin fluids). All other models h[...]

Selection Charts 8 311051F Pr oper Needle/Nozzle Selection The spra y gun's needle/nozzle kits range in size to pro- vide different fluid flow r ate s. As a general guideline, use th e fluid nozzle that will give the required flo w with the needle fully triggered at a fluid pressure of 5-20 psi (0.035 MP a, 3.5 bar - 0.14 MP a. 14 bar) F or lo[...]

Air Flow 311051F 9 Air Flo w All tests were completed with the 0.055 in. (1 .4 mm) nozzle and stand ard air cap for each gu n model. F IG . 1: HVLP Gun Air Cap Pres sure F IG . 2: A utomatic Gun Air Consumption HV LP Ai rcap Pressures 0 1 2 3 4 5 6 7 8 9 10 11 12 0 5 10 15 20 25 30 35 40 45 50 Manif old Inlet Pr e s s ur e p si Ai rcap P r essur e [...]

Installation 10 311051F Installation The A utomatic XT spra y guns were designed to pr oduce the highest quality finish with toda y's fluids as well as the low V .O .C . (volatile orga nic compound) fluids of tomorrow . This spra y gun can spra y most coat ings or finishes cur- rently being used f or automotiv e, industrial, aerospace, marine,[...]

Installation 311051F 11 Install Air Fittings 1. Install the sup plied 1/4 in. tube fitting into the cylin - der (CYL) air port. 2. Install 3/8 in. tu be fittings into the atomization (A T OM) air por t and the f an (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 inclu[...]

Installation 12 311051F Mount Gun Reciprocating Arm Rod Mount T o mount the gun on a reciprocating arm rod [0.5 i n. (13 mm) diameter maxim um]: 1. Insert the mounting bar (A) thr ough the hole in the manif old as shown in F IG . 5. 2. Secure the gun to the bar b y tightening th e mount- ing screw (B). Stationary Suppor t T o mount the gun on a sta[...]

Setup 311051F 13 Setup Connect Air Line 1. F or manif olds with a separate A T OM and F AN por t, the gun cylinder , fan, an d atomization air must be supplied and regulate d separately . F or the manual f an valv e manifo ld, only one supply line is required f or both atomization an d fan air . 2. Connect each air hose (D) to a regulate d air supp[...]

Setup 14 311051F Flush Spra y Gun Bef ore running any paint through the sp ray gu n: 1. Flush the gun with a solv ent that is compatib le with the fluid to be sp ray ed, using the lo west possib le fluid pressure and a g rounded metal container . 2. P erform Pressure Relief Procedure ; see page 17. P osition Air Cap Air caps are factor y-set with t[...]

Setup 311051F 15 Adjust Spra y P attern The spra y gun fluid flo w is controlled by the fl uid pres- sure regulator and t he fluid control knob . Use the fluid pressure regula tor to adjust the gene ral fluid flow and the fluid control kn ob to make precise fluid flow adjust- ments . F ollow the se steps to e stablish the correc t fluid flow and ai[...]

Setup 16 311051F 3. T est the spra y pattern atomization while keeping the gun a consistent distance , about 6 to 8 inches (150 to 200 mm), from the te st piece. Check the atomizatio n quality . Increase the gun atomizing air supply pr essure with the air pressure regulator in 5 psi (34 kP a, 0.3 bar) increments unt il yo u obtain the desired atomi[...]

Operation 311051F 17 Operation Pressure Relief Pr ocedure 1. T ur n off all b leed type air v alves and all other air and fluid supplies to th e gun. 2. T rigger the gun into a groun ded metal waste con- tainer to relie ve air and fluid pr essure. Appl y Fluid The spra y gun has a b uilt-in lead and lag oper ation. When trig gered, the gun be gins [...]

Daily Gun Care 18 311051F Dail y Gun Care CA UTION Meth ylene chloride with f or mic or propionic acid is not recommended as a flushing 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 qua lity paint finish. Do not use any cleaning method which ma[...]

Daily Gun Care 311051F 19 General System Maintenance •P e r f o r m Pressure Relief Pr ocedure , page 1 7. • Clean the fluid and air line f ilters daily . • Chec k for an y fluid leakage from the gun an d fluid hoses. Tighten fittings or replace equip ment as needed. • Flush the gun bef ore changing colors and whene ver yo u are done operat[...]

Troubleshooting 20 311051F 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 be tween air and fluid. Ref er to Spray Pattern T roubleshoo ting , page 22. Prob lem Cause Solution Fluid leakage throu gh v[...]

Troubleshooting 311051F 21 Fluid needle will not trigger . Loos e or missing fluid needle stop (29) or setscrew (30). Air leaking around piston (3). Swollen piston o-ring (8). Insufficient air pressure on trigger . Plug (19) is in incorr ect fluid por t. Replace stop or tight en setscrew . Replace o-ring (8) or pi ston. Replace o-ring. Do not immer[...]

Troubleshooting 22 311051F Spra y P attern T roub leshooting Prob lem Cause Solution Fluid flow is flutter ing while spraying. Fluid nozzle is not tight eno ugh. O-ring (36) is missing or damaged. Fluid filter is clogged. Tighten flui d nozzle to 60 in-lb (6.8 N•m). Replace o-ring. Check fluid filter . Fluid flo w fades while spr aying high visco[...]

Service 311051F 23 Service Items Needed f or Service • 1/16 in. He x Wrench - prov ided •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 • Pliers • Lubricant par t no . 111265; see Acce ssories , page 33, to order • Compatib le Solvent Replace Fluid P ac kings and Air Seals 1. P erform Pressure Re lief Procedure [...]

Service 24 311051F 13. Remove all o-r ings from th e piston (3) a nd stems (T). Chec k that the stems are solidly in place . If they are loose, replac e the entire piston asse mbly (3). 14. P erf or m the f ollowing applicab le step: a. Non-circulating guns: Remo ve th e fluid outlet por t plug (19) , and gask et (22) from the flu id housing (2). R[...]

Service 311051F 25 Reassembl y 1. Non-circulating guns only: L ubr icate the backup ring (20†) and o-ring (21†) and install them on th e fluid outlet por t plug (19). Insta ll the plug in the fluid out- let por t of the fluid housing (2). See F IG . 22. 2. All guns: Reinstall the gasket (22) in the flu id hous- ing (2). 3. Install the o- r ings[...]

Parts 26 311051F Pa r t s F IG . 22 SERVICE NOTES: Torque to 35-45 in-lb (4.0-5.1 N•m) Lubricate threads with anti-seize lubricant Lubricate with light-weight oil Tighten cap (4) until it bottoms out Apply semi-permanen t anaerobic sealant Torque to 4-5 in-lb (0.45-0.57 N•m) Torque to 95-105 in-lb (10.7-1 1.8 N•m) Apply semi-p ermanent anaero[...]

Parts 311051F 27 Pa r t s ★ See spra y gun assemb lies table (pag e 28) for part number . † Included in Flu id Seal Repair Kit 288135. * Included in Air Seal Re pair Kit 288171. ❄ Not shown. Air Caps Ref. No. P a rt No . Description Qty . 1B O D Y 1 2 15H321 HOUSING, flui d 1 3 240895 PIST ON, assy 1 4 CAP , piston 1 192453 standard mode ls 2[...]

Parts 28 311051F Spray Gun Assemb l ies (all models) * Guns with stainless steel needle tip , which is not rec- ommended f or th in fluids. † Guns with Fluid Control Knob . Needle Tips Gun P art No. Needle/Nozzle Kit Includes items 5 & 23 Item 5 Needle Assy . Includes item 5a Item 5a Needle Tip Pa c k o f 5 Item 23 Nozzle Item 24 Nozzle Orifi[...]

Parts 311051F 29 P ar t No. 288221 Manif old with bottom fl uid por ts ❄ Not shown. Ref. No. P a rt No . Description Qty . 101 MANIFOLD , bottom fluid por ts 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 1[...]

Parts 30 311051F 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. Descri ption Qty . 101 MANIFOLD , side fluid po r ts 1 103 1 120388 ❖ FITTING, tube, air inlet; 1/4 in. OD [...]

Parts 311051F 31 P ar t No. 288223 Low Pressure Manif old with side fluid ports and fan adjustment valve ❄ Not shown. Ref. No. P art No. Descri ption Qty . 101 MANIFOLD , f an adjustab le 1 102 243949 V AL VE, f an, assy . 1 103 120388 FITTING, tube , air inlet; 1/4 in. OD tube x 1/8 npt( m) 1 104 120389 FITTING, tube , air line; 3/8 in.OD tube x[...]

Parts 32 311051F 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 art No. Descriptio n Qty . 101 MANIFOLD , aluminum 1 103 FITTING, fluid path 2 15H521 ❖ 1/4 npsm 15J003 ◆ #5 JIC 105 116475 SCREW , SHCS, M4 x 12 2 [...]

Accessories 311051F 33 Accessories Cleaning Brush 105749 F or use in cleaning gun. Lubricant 111265 One 4 oz. (113 gram) tube sa nitary (non-silicone) lubr i- cant f or fluid seals a nd wear areas . Fluid Hose P ar ts Breakdown Alternate Nozzle Sizes Retrofit Adapter Plate 288197 The retrofit adapter plat e enables the manif old to be attached to a[...]

Dimensions 34 311051F Dimensions F IG . 28 TI8181a TI8104a 2.0 in. (50.8 mm) 5.3 in. (134.6 mm) Part No. 249407 Gun Shown 3.86 in. (98 .0 m) 3.0 in. (76.2 mm) 1.395 in. (35.43 mm) 2.76 in. (70.1 mm) 6.41 in. (162.81 mm) with fluid control knob 0.5 in. (12.7 mm) mounting hole[...]

Mounting Hole Layout 311051F 35 Mounting Hole La y out F IG . 29: Manif old Mounting Hole La yout TI8107a TI8181a 0.4 in. (10.2 mm) Two M5 x 0.8 x 0.25 in. (6.3 mm) holes 0.805 in. ( 20.5 mm) 0.187 in. (4.8 mm) 1.375 in. (35 mm) 1.750 in. (44.5 mm) Two 0.128 diame ter x 0.31 in. (7.8 mm) h oles 2.125 in. (54 mm) Use 1/8 in. pin for alignment 2.02 i[...]

Mounting Hole Layout 36 311051F Mounting Hole La y out F IG . 30: Mounting Hole La youts TI8177a Rear Port Manifold Retrofit Adapter Plate Gun with Retrofit Adapter Plate TI8178a 2.007 i n. (50.98 mm) 1.375 i n. (34.93 mm) 0.736 in. (18.69 mm) TI8226a 2.27 in. (57.66 mm) Rear Port Ma nifold TI8232a 2.325 in. (59.06 mm) 1.765 i n. (44.83 mm) 3.730 i[...]

Technical Data 311051F 37 Te c h n i c a l D a t a Loctite ® is a registere d trademark of th e Loctite Cor poration. T riggering Speed These v alues apply to a new gun with a 12 f t. (3.6 m), 1/4 in. (6.3 mm) OD cylinder air line and a 0.055 in. nozzle. These v a lues will vary slightly with use and with variations in equipment. Sound Data (dBa) [...]

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. This manual contains English. MM 311051 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Korea GRACO INC. P.O. BOX 14[...]