Instruction/ maintenance manual of the product 249369 Graco
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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.
Related Manua ls 2 311051F Contents Related M anuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 W arnings . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
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.
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.
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.
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).
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.
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 .
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 .
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.
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).
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 .
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.
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 .
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.
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.
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.
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.
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.
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.
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.
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.
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).
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 .
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.
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.
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 .
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.
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 .
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.
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 .
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 .
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.
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.
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.
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.
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.
An important point after buying a device Graco 249369 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Graco 249369 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Graco 249369 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Graco 249369 you will learn all the available features of the product, as well as information on its operation. The information that you get Graco 249369 will certainly help you make a decision on the purchase.
If you already are a holder of Graco 249369, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Graco 249369.
However, one of the most important roles played by the user manual is to help in solving problems with Graco 249369. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Graco 249369 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
