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Instructions - Parts
Delta Spray
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.
Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441
Copyright 2004, Graco Inc. is registered to I.S. EN ISO 9001
®
XT Gun
310692D
II 2 G
ti4819

Summary of Contents

  • Page 1

    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 II 2 G Copyright 2004, Graco Inc. is registered to I.S. EN ISO 9001...

  • Page 2: Table Of Contents

    Installation ....... . 8 Graco Information ......34 Setup .

  • Page 3: Warnings

    Do not alter or modify equipment. • For professional use only. • Use equipment only for its intended purpose. Call your Graco distributor for information. • Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces. •...

  • Page 4: Selection Charts

    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)

  • Page 5

    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)

  • Page 6: Gun Selection, Air Caps

    HVLP gun is required for compliance than or equal to HVLP guns. The Graco compliant guns with environmental standards. have no restrictions on aircap pressures, but the gun inlet pressure must remain under 29 psi (21 MPa 2.1...

  • Page 7: Nozzle, Needle, And Tip Selection

    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 spray- ing 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.

  • Page 8: Installation

    Installation Installation Top and bottom feed guns ti4819 Key: Delta Spray XT Gun Air Shutoff Valve Fluid Inlet, 3/8 npsm (R3/8-19)* Air Regulator Air Inlet Air Filter Air Hose Air Supply Line recommended 5/16 in. (7.9 mm) ID hose *Pressure and siphon feed guns will have bottom feed optional 3/8 in.

  • Page 9: Setup

    Setup Setup Flushing the gun 3. Install an air filter (G). See F . 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 5.

  • Page 10

    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 2.

  • Page 11

    Setup Adjusting the Spray Pattern 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 1. To achieve full fan pattern, open the pattern adjust- out another half turn.

  • Page 12

    Setup 7. To achieve a narrow spray pattern, turn pattern 9. To improve atomization, reduce the fluid flow rate. adjustment valve (25) clockwise. Increasing the air pressure can improve atomization but may result in poor Transfer Efficiency (TE) or non-compliant operation. •...

  • Page 13: Operation

    Operation Operation Pressure Relief Procedure 1. To achieve the best results when applying fluid: • Keep the gun perpendicular and 6 to 8 inches (150 to 200 mm) from the object being sprayed. WARNING • Use smooth, parallel strokes across the surface to be sprayed with 50% overlap.

  • Page 14: Daily Gun Maintenance

    Daily Gun Maintenance Daily Gun Maintenance WARNING Follow Pressure Relief Procedure, page 13 when you stop spraying and before cleaning, checking, ser- vicing, 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 compo- nents.

  • Page 15

    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 follow- ing chart for flushing and cleaning instructions. Cup attachment Instruction Manual ™...

  • Page 16

    Daily Gun Maintenance 8. Remove the air cap retaining ring assembly (15) 12. Scrub the air cap retaining ring, air cap, and fluid and air cap (14). 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 ti4847a...

  • Page 17

    Daily Gun Maintenance 15. Dampen a soft cloth with solvent and wring-out the 16. After cleaning the gun, lubricate the following parts excess. Point the gun down and wipe off the outside with lubricant 111265 daily: of the gun. • Fluid adjustment knob threads •...

  • Page 18: Troubleshooting

    Troubleshooting Troubleshooting WARNING Follow Pressure Relief Procedure, page 13 when you stop spraying and before cleaning, checking, ser- vicing, or transporting equipment. Read warnings, page 3. Problem Cause Solution Fluid flow is fluttering while spraying. 1. Fluid nozzle not tight enough. 1.

  • Page 19: Service

    Service Service Replacing the air and fluid 2. Flush the spray gun, page 9. packings 3. Remove the air cap retaining ring (15A), seal (15B), and air cap (14). Tools needed: 15A 15B • Gun Tool - provided • Packing Installation Tool - provided •...

  • Page 20

    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). ti4978a .

  • Page 21

    Service 4. Unscrew the packing screw (8) from the insert (4) Replacing the pattern adjustment valve with the gun tool (28). packings 1. Unscrew the pattern adjustment valve assembly (25 A-D). ti4834a . 29 ti4857a 5. Using a mechanical pick, push the three fluid pack- .

  • Page 22

    Service Replacing the fluid valve packings 4. Place the new u-cup packing (16) on the packing installation tool (29), with the u-cup lips facing the 1. Remove the fluid adjustment knob (21) and fluid tool as shown. spring (23). 2. Pull the fluid needle (13) out the back of the gun. ti4851a .

  • Page 23

    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 4. Lubricate the outside of the new air valve assembly parts in the exact order given in the following steps. (26) and place it on the fluid needle (13), against the nut (B).

  • Page 24

    Service 8. Install the trigger (10), pivot pin (17), wave washer 12. Install the pattern adjustment valve assembly (18), and screw (11). Torque the screw to 20-30 in-lb (25A-D). Torque the nut (25A) to 125-135 in-lb (2.3-3.4 N•m). (14-15 N•m). 25A-D ti4832a .

  • Page 25

    Service 310692D...

  • Page 26: Parts

    Parts Parts Airspray, HVLP, and Compliant Guns With Pressure, Gravity, and Siphon Feeds 25B* 15B* 20* 19 4† ti4821a ti4831b † Insert (4) appears for top or bottom feed depending on application. 310692D...

  • Page 27

    Parts Airspray, HVLP, and Compliant Guns With Pressure, Gravity, and Siphon Feed Ref. Ref. Part No. Description Qty. Part No. Description Qty. 234379 VALVE ASSY., pattern adjustment; 234740 BODY, gun includes items 25A-D; airspray SPRAY HOUSING ASSY., includes guns only items 2A-B;...

  • Page 28

    Parts 234788 Spatter or Specking Airspray Gun 15B* 20* 19 ti3652482aa ti4831b 310692D...

  • Page 29

    Parts 234788 Spatter or Specking Airspray Gun Ref. Ref. Part No. Description Qty. Part No. Description Qty. 188493 U-CUP 234740 BODY, gun 192272 PIN, pivot 234592 SPRAY HOUSING ASSY., includes 15C468 NUT, fluid valve items 2A-B; 110453 U-CUP HOUSING, spray; 15E245 KNOB, fluid adjustment O-RING 114069 SPRING, air valve...

  • Page 30: Accessories

    Accessories Accessories Cleaning Brush 105749 Air Control Valve 234784 For use in cleaning gun Allows for air pressure adjust- Comes with gauge. ment at gun inlet. Lubricant 111265 One 4 oz. (113 gram) tube sanitary (non-silicone) lubri- cant 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).

  • Page 31

    Accessories Gun Air Regulator Assy. 235119 Gravity Cup Holder Bracket 192407 0-100 psi (0-0.7 MPa, 0-7 bar) air regulator to control air pressure to gun. Fits both gravity cup sizes. Installing the gun air regulator adds a pressure SST Pressure Cup Kit 239802 drop that could limit the air cap pressure.

  • Page 32

    Accessories SST Pressure Cup Kit 239803 ™ ™ Paint Preparation with double air regulator System 1 qt. (0.95 liter) capacity, 304 stainless steel cup. Includes a pressure relief valve, a 0-100 psi (0-0.7 MPa, Gravity Feed 234837 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.

  • Page 33: Technical Data

    Technical Data Technical Data Category Data Maximum Working Fluid Pressure 300 psi (2.1 MPa, 21 bar) Maximum Working Air Pressure 100 psi (0.7 MPa, 7 bar) Maximum Compliant Inbound Air Pressure 29 psi (200 kPa, 2.0 bar) HVLP Gravity/Siphon Feeds 29 psi (200 kPa, 2.0 bar) HVLP Pressure Feed 40 psi (280 kPa, 2.8 bar)

  • Page 34: Graco Standard Warranty, Graco Information

    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.

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