Graco Delta Spray 308741N Instructions Manual
Graco Delta Spray 308741N Instructions Manual

Graco Delta Spray 308741N Instructions Manual

Hvlp spray gun

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Instructions - Parts List
Parts
Delta Sprayt
HVLP Spray Gun
100 psi (0.7 MPa, 7 bar) Maximum Working Fluid Pressure
100 psi (0.7 MPa, 7 bar) Maximum Working Air Pressure
40 psi (280 kPa, 2.8 bar) Maximum Compliant Inbound Air Pressure
U.S. Patent 6,019,293
Taiwan Patent 199585
Taiwan Patent 199601
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INSTRUCTIONS

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This manual contains important warnings
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READ AND KEEP FOR REFERENCE.
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308741N
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Table of Contents
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Summary of Contents for Graco Delta Spray 308741N

  • Page 1: Table Of Contents

    Instructions – Parts List Parts Delta Sprayt HVLP Spray Gun 100 psi (0.7 MPa, 7 bar) Maximum Working Fluid Pressure 100 psi (0.7 MPa, 7 bar) Maximum Working Air Pressure 40 psi (280 kPa, 2.8 bar) Maximum Compliant Inbound Air Pressure U.S.
  • Page 2: Symbols

    Warning Symbol WARNING This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions. EQUIPMENT MISUSE HAZARD Equipment misuse can cause the equipment to rupture, malfunction or start unexpectedly and result in INSTRUCTIONS serious injury.
  • Page 3 PRESSURIZED EQUIPMENT HAZARD Spray from the gun, hose leaks or ruptured components can splash fluid in the eyes or on the skin and cause serious injury. D Do not stop or deflect fluid leaks with your hand, body, glove or rag. D Follow the Pressure Relief Procedure on page 12 when: you are instructed to relieve pressure;...
  • Page 4: Selection Charts

    TERMS: Light Fluid: Up to 18 seconds with No. 2 Zahn cup (20 centipoise) Medium Fluid: 19 to 28 seconds with No. 2 Zahn cup (20–64 centipoise) Heavy Fluid: Greater than 28 seconds with No. 2 Zahn cup (greater than 64 centipoise) -- 2.8 Volatile Organic Compounds, High-solid Polyurethanes, Heavy Waterborne Enamels NOTE: See pages 24–27 for further part number information.
  • Page 5 HVLP Spray Gun and Pressure Cup Assemblies Includes: Gun and Cup Gun and Cup Assy. Part No. Gun Part No. 239568 239560 239569 239561 239570 239562 239571 239563 HVLP Spray Gun and Gravity Cup Assemblies Includes: Gun and Cup Gun and Cup Assy.
  • Page 6: Air Flow And Atomizing Pressure

    Air Flow and Atomizing Pressure NOTE: All tests were completed with the 0.055 in. (1.397 mm) nozzle, large pattern air cap, and the pattern adjust- ment valve fully open. Air Flow GUN INLET PRESSURE (psi) 308741 (inlet pressure versus atomizing pressure) Gun Inlet Pressure psi (kPa, bar) 10 (70, 0.7)
  • Page 7: Typical Installation

    Typical Installation Delta Spray Gun See page 4 for gun part numbers. Fluid Inlet; 3/8 npsm (R3/8–19) Air Swivel Inlet; 1/4 npsm (R1/4–19) Air Hose Recommend 5/16” (7.9 mm) ID hose Optional 3/8” (9.5 mm) ID hose Air Shut-off Valve Air Regulator G Air Filter Air Supply Line...
  • Page 8: Setup

    1. Connect the Air Line NOTE: D You must install an air pressure regulator (F) on the gun air line to control air pressure to the gun. See Fig. 2. D If your regulated air source does not have a filter, install an air filter (G) on the air line to ensure a dry, clean air supply to the gun.
  • Page 9 3. Flush the Spray Gun. Before putting any paint through the spray gun, flush the gun out with a solvent that is compatible with the fluid to be sprayed, using the lowest possible fluid pressure and a grounded metal container. Fig.
  • Page 10 6. Adjust the Spray Pattern (continued) B. Adjust the fluid flow using the fluid pressure regulator (L) installed in the gun fluid line. Typical industrial flow rates will vary with regulator pres- sures from 5 to 30 psi (34 to 210 kPa, 0.3 to 2.1 bar).
  • Page 11 6. Adjust the Spray Pattern (continued) NOTE: D If the fluid adjustment knob is turned in all the way the gun will emit only air. D For continuous spraying, turn the fluid adjustment knob (8) counterclockwise until no restriction of the trigger movement is felt.
  • Page 12: Operation

    Pressure Relief Procedure WARNING PRESSURIZED EQUIPMENT HAZARD The system pressure must be manually relieved to prevent the system from starting or spraying acci- dentally. To reduce the risk of an injury from acci- dental spray from the gun, splashing fluid, or moving parts, follow the Pressure Relief Proce- dure whenever you: D are instructed to relieve the pressure,...
  • Page 13: Daily Gun Care, Flushing, And Cleaning

    Daily Gun Care, Flushing, and Cleaning WARNING PRESSURIZED EQUIPMENT HAZARD To reduce the risk of a serious injury whenever you are instructed to relieve pressure, follow the Pres- sure Relief Procedure on page 12. Solvent left in gun air passages could result in a poor quality paint finish. Do not use any cleaning method which may allow solvent into the gun air passages.
  • Page 14 Daily Gun Care, Flushing, and Cleaning WARNING PRESSURIZED EQUIPMENT HAZARD To reduce the risk of a serious injury whenever you are instructed to relieve pressure, follow the Pres- sure Relief Procedure on page 12. 1. Relieve the pressure. 2. Disconnect the fluid supply hose (J) and air supply hose (D) from the gun.
  • Page 15 Daily Gun Care, Flushing, and Cleaning 8. Remove the air cap retaining ring (15) and air cap (14). 9. Trigger the gun while you remove the fluid nozzle (12) from the gun with the gun tool (28). Fig. 19 CAUTION Trigger the gun whenever you tighten or remove the nozzle.
  • Page 16 Daily Gun Care, Flushing, and Cleaning 14. Trigger the gun while you install the fluid nozzle (12) with the gun tool (28). Tighten the nozzle securely to 125–135 in-lb (14–15 NSm) to obtain a good seal. 15. Install the air cap retaining ring (15) and air cap (14).
  • Page 17: Troubleshooting

    WARNING PRESSURIZED EQUIPMENT HAZARD To reduce the risk of a serious injury, follow the Pres- sure Relief Procedure on page 12 before checking or repairing any part of the gun or system. PROBLEM Fluid flow is fluttering while spraying Fluid flow fades while spraying high viscosity fluids Pattern becomes off-set or heavy on ends...
  • Page 18: Service

    Items Needed for Service D Gun Tool – provided D Packing Installation Tool – provided D Adjustable Wrench D Screw Driver D Lubricant part no. 111265; see Accessories, page 28, to order D Compatible Solvent Fluid Packings Replacement WARNING PRESSURIZED EQUIPMENT HAZARD To reduce the risk of a serious injury, follow the Pressure Relief Procedure on page 12 before checking or repairing any part of the gun or sys-...
  • Page 19 12. Place the new fluid packings (5) and packing screw (8) onto the needle (13). See Fig. 27 for the orientation of the parts. 13. Insert the fluid needle (13) into the back of the insert (4) to install the fluid packings (5). 14.
  • Page 20 22. To tighten the packing screw (8), turn the screw in until it touches the fluid packings (5), then tighten one full turn to pre-set the packings. Loosen the screw, then turn it in until it touches the packings again. Tighten the screw 1/12 turn more (equal to half the distance between points on the hex head).
  • Page 21 11. Place the new fluid packings (5) and packing screw (8) onto the needle (13). See Fig. 27, page 19, for the orientation of the parts. 12. Insert the fluid needle (13) into the back of the insert (4) to install the fluid packings (5). 13.
  • Page 22 NOTE: To ensure proper alignment of the parts, follow the next steps in the order they are given. 27. Slide the insert (4) into the spray housing (2a), and install them onto the gun body (1). Align the hous- ing with the slot and lip (A) on the gun body (1). 28.
  • Page 23 Notes 308741...
  • Page 24: Parts

    Parts Item 2 includes 2a–2b Item 13 includes item 13a Item 25 includes 25a–25d 7586A 308741...
  • Page 25 Part No. 239559 to 239567 Pressure Feed HVLP Spray Gun Assembly Ref. Part No. Description 239721 BODY, gun 239651 SPRAY HOUSING ASSY.; Includes items 2a–2b S HOUSING, spray; not sold separately S O-RING, CV75 111316 191849 INSERT, fluid 239640 KIT, fluid packing; Includes spreader, u-cup, and spacer 192352 SCREW, packing...
  • Page 26 Parts Item 2 includes 2a–2b Item 13 includes item 13a Item 25 includes 25a–25d 7585A 308741...
  • Page 27 Part No. 239574 and 239575 Gravity Feed HVLP Spray Gun Assembly Ref. Part No. Description 239721 BODY, gun 239799 SPRAY HOUSING ASSY.; Includes items 2a–2b S HOUSING, spray, gravity; not sold separately S O-RING, CV75 111316 191850 INSERT, fluid, gravity 239640 KIT, fluid packing;...
  • Page 28: Accessories

    Cleaning Brush 105749 For use in cleaning gun Lubricant 111265 One 4 oz. (113 gram) tube sanitary (non-silicone) lubricant for fluid seals and wear areas. Fluid Whip Hose Assembly 239622 100 psi (0.7 MPa, 7 bar) Maximum Working Pressure Eases gun movement with increased hose flexibility. 4 ft.
  • Page 29 Gravity Cup For use with gravity feed gun. Nylon cup, 304 stainless steel 3/8 npsm(f) fluid inlet fitting, fluid filter cartridge included. Part No. Size 239714 16 oz. (474 cc) 239715 8 oz. (237 cc) Gravity Cup Holder Bracket 192407 Fits both gravity cup sizes.
  • Page 30: Dimensions

    Dimensions 6.7 in. (170 mm) 7.6 in. (193 mm) 308741 Technical Data Category Maximum Working Fluid Pressure Maximum Working Air Pressure Maximum Compliant Inbound Air Pressure Fluid and Air Operating Temperature Range Weight Air Inlet Fluid Inlet 7048A Wetted Parts Noise Data* Sound Pressure Sound Power...
  • Page 31 Notes 308741...
  • Page 32: Graco Standard Warranty

    Graco Standard Warranty Graco warrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized Graco distributor 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.

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