Instructions - Parts Delta ® Spray XT Gun 310692D For Airspray, HVLP, and Compliant guns with pressure, siphon, and gravity feeds. 300 psi (2.1 MPa, 21bar) Maximum Working Fluid Pressure 100 psi (0.7 MPa, 7 bar) Maximum Working Air Pressure Important Safety Instructions Read warnings and instructions in this manual. Save these instructions. See page 4 for selection list of models. ti4819 Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441 Copyright 2004, Graco Inc. is registered to I.S.
Related Manuals Contents Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . 2 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Selection Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Gun Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Air Caps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Nozzle, Needle, and Tip Selection . . . .
Warnings Warnings The following warnings include general safety information for this equipment. More specific warnings are included in the text where applicable. WARNING FIRE AND EXPLOSION HAZARD - FE CED/IND General Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent fire and explosion: • Use equipment only in well ventilated area.
Selection Charts Selection Charts Pressure feed spray guns Orifice Size in. (mm) HVLP Compliant Airspray .030 (0.75) 234647 234693 234636 .042 (1.0) 234648 234694 234637 .055 (1.4) 234649 234695 234638 .070 (1.8) 234650 234696 234639 .086 (2.2) 234651 234640 .110 (2.8) 234652 234641 .042 (1.0) 234653* 234644* .055 (1.4) 234654* 234645* .070 (1.8) 234655* 234646* .030 (0.75) 249856† .042 (1.0) 249857† .055 (1.4) 249858† .070 (1.
Selection Charts Gravity feed spray guns (without gravity cup) Orifice size in. (mm) HVLP Compliant Airspray .055 (1.4) 234658 234685 234662 .070 (1.8) 234659 234686 234663 Gravity feed spray guns with 16 oz. gravity cup Orifice size in. (mm) HVLP Compliant Airspray .055 (1.4) 234713 234721 234705 .070 (1.8) 234714 234722 234706 Gravity feed spray guns with 3M™ PPS™ gravity cup Orifice Size in. (mm) HVLP Compliant Airspray .055 (1.4) 234681 234689 234677 .070 (1.
Gun Selection Gun Selection HVLP Guns Compliant Guns An HVLP gun is a high transfer efficiency gun which limits the air pressure at the aircap to 10 psi maximum. In some areas, an HVLP gun is required for compliance with environmental standards. A compliant gun is a high transfer efficiency gun which has been tested to have a transfer efficiency greater than or equal to HVLP guns.
Nozzle, Needle, and Tip Selection Nozzle, Needle, and Tip Selection The chart below lists the available nozzle sizes and required fluid needle and nozzles for the Delta Spray XT guns. The HVLP, Compliant, and Airspray guns all use the same nozzle design and fluid needles. When spraying high flow rates and high viscosity materials use the larger nozzle sizes and when spraying light materials or low flow rates, use the smaller nozzle sizes. Nozzle Orifice in. (mm) Nozzle Fluid Needle Assy.
Installation Installation Top and bottom feed guns G E A D C H F B* ti4819 FIG. 1 Key: A B C D 8 Delta Spray XT Gun Fluid Inlet, 3/8 npsm (R3/8-19)* Air Inlet Air Hose recommended 5/16 in. (7.9 mm) ID hose optional 3/8 in. (9.5 mm) ID hose E F G H Air Shutoff Valve Air Regulator Air Filter Air Supply Line *Pressure and siphon feed guns will have bottom feed insert. Gravity feed guns will have a top feed insert.
Setup Setup Flushing the gun 3. Install an air filter (G). See FIG. 1. 4. Use a 5/16 inch (7.9 mm) I.D. air hose to minimize excessive pressure drop in the hose. Flush the spray gun before putting any paint through the gun. 5. Connect the air hose (D) to the 1/4 npsm gun air inlet (C). WARNING Read warnings, page 3. Follow Top and bottom feed guns installation, page 8. C 1. To flush the gun, use a solvent that is compatible with paint to be sprayed.
Setup Connecting the fluid hose Connecting the fluid supply (Pressure feed guns only) For packages that include fluid cups, use the following chart for installation instructions. 1. To control fluid pressure to the gun, install a fluid regulator on the fluid line. Cup attachment Instruction Manual 3M PPS 310693 Gravity Cup 308792 Siphon Cup 308792 Pressure Cups 308791 2. Connect the fluid hose (J) to the gun fluid inlet (B) 3/8-18 npsm [R 3/8-19] compound thread.
Setup Adjusting the Spray Pattern 1. To achieve full fan pattern, open the pattern adjustment valve (25) by turning the knob fully counterclockwise. 3. To establish the correct fluid flow, turn the fluid adjustment knob (21) counterclockwise until no restriction of the trigger movement is felt, then turn out another half turn. When the knob is turned far enough, the trigger should be able to touch the gun handle when the gun is triggered. (Close) (Open) (Open) (Close) 25 21 ti4841a FIG.
Setup 7. To achieve a narrow spray pattern, turn pattern adjustment valve (25) clockwise. 9. To improve atomization, reduce the fluid flow rate. Increasing the air pressure can improve atomization but may result in poor Transfer Efficiency (TE) or non-compliant operation. • (Close) (Open) • 25 • ti4841a FIG. 10 8. For HVLP only: To measure the aircap atomizing pressures, use the accessory aircap verification kit. See Accessories on page 30. 12 • For gravity feed HVLP guns, at 29 psi (200 kPa, 2.
Operation Operation Pressure Relief Procedure 1. To achieve the best results when applying fluid: • WARNING • Keep the gun perpendicular and 6 to 8 inches (150 to 200 mm) from the object being sprayed. Use smooth, parallel strokes across the surface to be sprayed with 50% overlap. Incorrect Follow Pressure Relief Procedure, page 13 when you stop spraying and before cleaning, checking, servicing, or transporting equipment. Read warnings, page 3. 1. Turn off air and fluid supply. 2.
Daily Gun Maintenance Daily Gun Maintenance WARNING Follow Pressure Relief Procedure, page 13 when you stop spraying and before cleaning, checking, servicing, or transporting equipment. Read warnings, page 3. CAUTION Methylene chloride with formic or propionic acid is not recommended as a flushing or cleaning solvent with this gun as it will damage aluminum and nylon components. CAUTION Solvent left in gun air passages could result in a poor quality paint finish.
Daily Gun Maintenance Flushing and cleaning 3. Connect the solvent supply hose to the gun. Gravity and Siphon Feed Guns 1. For packages that include fluid cups, use the following chart for flushing and cleaning instructions. Cup attachment Instruction Manual 3M™ PPS™ 310693 Gravity Cup 308792 Siphon Cup 308792 Pressure Cups 308791 2. Continue to step 8 to perform daily cleaning of the Delta Spray XT gun. ti4854a FIG. 14 4.
Daily Gun Maintenance 8. Remove the air cap retaining ring assembly (15) and air cap (14). 12. Scrub the air cap retaining ring, air cap, and fluid nozzle with the soft-bristle brush. 9. Trigger the gun while you remove the fluid nozzle (12) from the gun with the gun tool (28) 14, 15 12 28 ti4847a FIG. 20 ti4844b FIG. 17 • CAUTION Trigger the gun whenever you tighten or remove the nozzle. This keeps the needle seat away from the nozzle seating surface and prevents the seat from being damaged. 10.
Daily Gun Maintenance 15. Dampen a soft cloth with solvent and wring-out the excess. Point the gun down and wipe off the outside of the gun. 16. After cleaning the gun, lubricate the following parts with lubricant 111265 daily: • • • Fluid adjustment knob threads Trigger pivot pin Fluid needle shaft Lubricate ti4848a FIG. 22 Lubricate ti4819a FIG.
Troubleshooting Troubleshooting WARNING Follow Pressure Relief Procedure, page 13 when you stop spraying and before cleaning, checking, servicing, or transporting equipment. Read warnings, page 3. Problem Cause Fluid flow is fluttering while spraying. 1. Fluid nozzle not tight enough. Solution 1. Tighten fluid nozzle to 40 in-lb (4.5 N•m). 2. Fluid filter clogged. 2. Check fluid filter. 3. Fluid source empty. 3. Refill Fluid flow fades while spraying high viscosity fluids. 1.
Service Service Replacing the air and fluid packings 2. Flush the spray gun, page 9. 3. Remove the air cap retaining ring (15A), seal (15B), and air cap (14). Tools needed: • Gun Tool - provided • Packing Installation Tool - provided • Adjustable Wrench • Screw Driver • Lubricant part no. 111265; see Accessories, page 28, to order • Compatible Solvent 15A 15B 28 12 14 ti4849b • • • Order Repair Kit 234828. See Parts starting on page 25.
Service 6. Loosen the hex nut (9) with the gun tool (28). Replacing the spray housing o-rings and packings 1. With the spray housing (2A) removed from the insert (4), use a mechanical pick to remove the o-ring (2B) from the housing (2A). 9 2A 36 4 2B ti4978a FIG. 26 7. Remove the spray housing (2A) and insert (4). ti4829b FIG. 28 2A 4 2. Remove o-ring (34) from the insert (4). O-ring (2B) is slightly larger than o-ring (34). 3. Install a new o-ring (34) into the insert (4).
Service 4. Unscrew the packing screw (8) from the insert (4) with the gun tool (28). 1. Unscrew the pattern adjustment valve assembly (25 A-D). 7 6 5 Replacing the pattern adjustment valve packings 4 25B 25A 25C 25D 8 ti4834a FIG. 29 ti4857a 5. Using a mechanical pick, push the three fluid packings (5, 6, 7) out of the insert (4). Be careful not to damage the insert. Discard the old fluid packings. 6. Place the new fluid packings (5, 6, 7) and packing screw (8) onto the needle (13).
Service Replacing the fluid valve packings 1. Remove the fluid adjustment knob (21) and fluid spring (23). 4. Place the new u-cup packing (16) on the packing installation tool (29), with the u-cup lips facing the tool as shown. 2. Pull the fluid needle (13) out the back of the gun. 16 26 13 21 16 29 ti4851a FIG. 34 5. Push the packing (16) into the back of the gun until a definite snap is felt. 23 22 37 20 19 ti4850a FIG. 33 3.
Service Reassembling the gun sary. If replacing needle tip, use low strength thread adhesive on needle tip threads. To ensure proper alignment of the parts, assemble parts in the exact order given in the following steps. 1. Slide the insert (4) into the spray housing (2A), and install them onto the gun body (1). Align the housing with the slot and lip (A) on the gun body. 2A 4 4. Lubricate the outside of the new air valve assembly (26) and place it on the fluid needle (13), against the nut (B).
Service 8. Install the trigger (10), pivot pin (17), wave washer (18), and screw (11). Torque the screw to 20-30 in-lb (2.3-3.4 N•m). 12. Install the pattern adjustment valve assembly (25A-D). Torque the nut (25A) to 125-135 in-lb (14-15 N•m). 17 18 25A-D ti4832a 11 10 ti4828a FIG. 40 9. Apply a thin film of lubricant to the fluid nozzle seat and threads. 10. Trigger the gun while you install the fluid nozzle (12) with the gun tool (28). Torque the nozzle securely to 40 in-lb (4.5 N•m). 28 12 FIG.
Service 310692D 25
Parts Parts Airspray, HVLP, and Compliant Guns With Pressure, Gravity, and Siphon Feeds 25D 25B* 15A 15B* 14 12 17 25C 25A 1 13 16* 7* 26* 13A 8 6* 5* 35 23 22 37* 20* 19 21 9 2B* 2A 36* 4† 24 11 ti4821a 29 10 28 ti4831b 26 † Insert (4) appears for top or bottom feed depending on application.
Parts Airspray, HVLP, and Compliant Guns With Pressure, Gravity, and Siphon Feed Ref. No 1 2 Part No. Description Qty. 234740 BODY, gun 1 SPRAY HOUSING ASSY.
Parts 234788 Spatter or Specking Airspray Gun 25 15A 15B* 1 17 14 37 12 13 16* 26* 8 7* 6* 5* 35 23 22 20* 19 21 9 2B* 2A 36* 4 24 11 ti3652482aa 29 10 28 ti4831b 28 310692D
Parts 234788 Spatter or Specking Airspray Gun Ref. No 1 2 Part No. Description Qty. 234740 BODY, gun 1 234592 SPRAY HOUSING ASSY., includes 1 items 2A-B; 2A HOUSING, spray; 1 2B* O-RING 1 4 15D661 INSERT, fluid; 1 5* 188494 PACKING, spreader 1 6* 188495 PACKING, u-cup 1 7* 192351 PACKING, spacer 1 8 192352 SCREW, packing 1 9 192348 NUT, hex; 1/2 - 20 UNF 1 10 15D993 TRIGGER 1 11 203953 SCREW, trigger lock 1 12 15E139 NOZZLE, fluid 1 13 239644 NEEDLE ASSY.
Accessories Accessories Cleaning Brush 105749 Air Control Valve 234784 For use in cleaning gun Comes with gauge. Allows for air pressure adjust- ment at gun inlet. Lubricant 111265 One 4 oz. (113 gram) tube sanitary (non-silicone) lubricant for fluid seals and wear areas. Air Control Valve Kit 243670 Install on the gun air inlet to control both the atomizing air and the pressure in the spray gun cup (if used). 1/4 npsm x 1/4-19 BSPT.
Accessories Gun Air Regulator Assy. 235119 0-100 psi (0-0.7 MPa, 0-7 bar) air regulator to control air pressure to gun. Installing the gun air regulator adds a pressure drop that could limit the air cap pressure. Gravity Cup Holder Bracket 192407 Fits both gravity cup sizes. SST Pressure Cup Kit 239802 with single air regulator 1 qt. (0.95 liter) capacity, 304 stainless steel cup. Includes a pressure relief valve and a single air regulator and gauge. Gravity Cup For use with gravity feed gun.
Accessories SST Pressure Cup Kit 239803 with double air regulator 1 qt. (0.95 liter) capacity, 304 stainless steel cup. Includes a pressure relief valve, a 0-100 psi (0-0.7 MPa, 0-7 bar) air regulator for gun atomization, and a 0-15 psi (0-104 kPa, 0-1.0 bar) air regulator for the 1 qt. pressure cup supply air. Installing the pressure cup kit adds a pressure drop that could limit the air cap pressure. 3M™ PPS™ Paint Preparation System Gravity Feed 234837 Siphon Feed 234773 For use with gravity feed gun.
Technical Data Technical Data Category Maximum Working Fluid Pressure Maximum Working Air Pressure Maximum Compliant Inbound Air Pressure HVLP Gravity/Siphon Feeds HVLP Pressure Feed Fluid and Air Operating Temperature Range Weight Air Inlet Fluid Inlet Wetted Parts Noise Data* Sound Pressure Sound Power Air Consumption Gravity/Siphon Feed: Airspray at 50 psi inlet HVLP at 29 psi inlet Compliant at 29 psi inlet Air Consumption Pressure Feed: Airspray at 40 psi inlet HVLP at 40 psi inlet Compliant at 29 psi
Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.
