Delta 20-140 Service Manual

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Automatic Delta Spray
HVLP Spray Guns
100 psi (0.7 MPa, 7 bar) Maximum Working Fluid Pressure
100 psi (0.7 MPa, 7 bar) Maximum Working Air Pressure
43 psi (300 kPa, 3.0 bar) Maximum Compliant Inbound Air Pressure
Table of Contents
Symbols 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selection Charts 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Flow and Atomizing Pressure 5. . . . . . . . . . . . . . . . .
Installation 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setup 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Daily Gun Care, Flushing, and Cleaning 14. . . . . . . . . .
General Troubleshooting 16. . . . . . . . . . . . . . . . . . . . . . .
Spray Pattern Troubleshooting 19. . . . . . . . . . . . . . . . . .
Service 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting Hole Layout 29. . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Standard Warranty 32. . . . . . . . . . . . . . . . . . . . . .
Graco Phone Number 32. . . . . . . . . . . . . . . . . . . . . . . . . .
Instructions – Parts List
GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441
Copyright 1999, Graco Inc. is registered to I.S. EN ISO 9001
309030D
Read warnings and instructions.
Part No. 241745 HVLP Spray Gun shown
mounted on Part No. 241697 Manifold.
Order the manifold separately from the
gun. See page 26 for part numbers.
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1 2 3 4 5 6 ... 31 32

Summary of Contents

Page 1 - HVLP Spray Guns

Automatic Delta Spray HVLP Spray Guns100 psi (0.7 MPa, 7 bar) Maximum Working Fluid Pressure100 psi (0.7 MPa, 7 bar) Maximum Working Air Pressure43 p

Page 2 - EQUIPMENT MISUSE HAZARD

10 309030Setup6. Adjust the Spray PatternWARNINGCOMPONENT RUPTURE HAZARDDo not exceed the 100 psi (0.7 MPa,7 bar) maximum fluid and air pres-sure of t

Page 3 - TOXIC FLUID HAZARD

309030 11SetupC. Test the spray pattern and atomization while keep-ing the gun a consistent distance, about 6 to 8 in-ches (150 to 200 mm), from the t

Page 5 - Atomizing Air Pressure

309030 13OperationPressure Relief ProcedureWARNINGPRESSURIZED EQUIPMENT HAZARDThe system pressure must be manually relieved toprevent the system from

Page 6 - Installation

14 309030Daily Gun Care, Flushing, and CleaningWARNINGPRESSURIZED EQUIPMENT HAZARDTo reduce the risk of a serious injury whenever youare instructed to

Page 7

309030 15Daily Gun Care, Flushing, and CleaningWARNINGPRESSURIZED EQUIPMENT HAZARDTo reduce the risk of a serious injury whenever youare instructed to

Page 8 - 2. Connect the Fluid Hose

16 309030TroubleshootingWARNINGPRESSURIZED EQUIPMENT HAZARDTo reduce the risk of a serious injury, follow the Pres-sure Relief Procedure on page 13 be

Page 9 - 5. Position the Air Cap

309030 17TroubleshootingGeneral Troubleshooting (continued)Problem Cause SolutionFluid needle will not trigger. Loose or missing fluid needle stop(29

Page 11 - Pressure Drop Chart

309030 19TroubleshootingSpray Pattern TroubleshootingWARNINGPRESSURIZED EQUIPMENT HAZARDTo reduce the risk of a serious injury, follow the Pres-sure R

Page 12 - 12 309030

2 309030SymbolsWarning SymbolWARNINGThis symbol alerts you to the possibility of seriousinjury or death if you do not follow the instructions.Caution

Page 13 - Operation

20 309030ServiceItems Needed for Service 1/16 in. Hex Wrench – provided Adjustable Wrench Pliers Lubricant part no. 111265; see Accessories, page2

Page 14 - General System Maintenance

309030 21ServiceFig. 149390A51324SERVICE NOTES:62423 25 2 15* 117 9*12* 3 8* 674302911*10*Torque to 4–5 in-lb (0.45–0.56 Nm)Lubricate threads with an

Page 15

22 309030ServiceReassembly1. Non-circulating guns only: Lubricate the backup(20) and o-ring (21) and install them on the fluidoutlet port plug (19).

Page 16 - Troubleshooting

309030 23ServiceFig. 15513247SERVICE NOTES:6Torque to 4–5 in-lb (0.45–0.56 Nm)Lubricate threads with anti-seize lubricantLubricate with light-weight

Page 17

24 309030PartsPart No. 241745 to 241752, Series AAutomatic HVLP Spray GunIncludes items 1–30Ref.No. Part No. Description Qty.Ref.No. Part No. Descript

Page 18 - 18 309030

309030 25Parts9389A252423175141315*222212046729305 (Ref)8*39*11*10*131*12Exploded View; Part No. 241745 Gun Shown195a16

Page 19

26 309030PartsUse Only Genuine Graco Parts and AccessoriesPart No. 241696, Series AManifold with bottom fluid portsRef.No. Part No. Description Qty.10

Page 20 - Fluid Packings Replacement

309030 27PartsUse Only Genuine Graco Parts and AccessoriesPart No. 241697, Series AManifold with side fluid portsRef.No. Part No. Description Qty.101

Page 21 - Part No. 241745 Gun Shown

28 309030AccessoriesCleaning Brush 105749For use in cleaning gunLubricant 111265One 4 oz. (113 gram) tube sanitary (non-silicone)lubricant for fluid s

Page 22 - Reassembly

309030 29DimensionsPart No. 241697 Manifold Shown9401A9399A5.3 in.(134.6 mm)2.0 in.(50.8 mm)3.0 in.(76.2 mm)Mounting Hole Layout2.125 in.(54 mm)0.187

Page 23 - Exploded View;

309030 3WARNINGPRESSURIZED EQUIPMENT HAZARDSpray from the gun, hose leaks or ruptured components can splash fluid in the eyes or on the skin andcause

Page 24

30 309030Technical DataMaximum working fluid pressure . . . . . . . . . . . . . . . . . . . 100 psi (0.7 MPa, 7 bar)Maximum working air pressure . .

Page 25

309030 31Notes

Page 26 - Part No. 241696, Series A

32 309030Graco Standard WarrantyGraco warrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workma

Page 27 - Part No. 243950, Series A

4 309030Selection ChartsTERMS: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–

Page 28 - Accessories

309030 5Air Flow and Atomizing PressureNOTE: All tests were completed with the 0.055 in. (1.397 mm) nozzle and Part No. 195304 Air Cap, and equivalen

Page 29 - Mounting Hole Layout

6 309030InstallationThe Delta Spray HVLP spray gun was designed toproduce the highest quality finish with today’s fluids aswell as the Low V.O.C. (vol

Page 30 - Technical Data

309030 7InstallationMount the GunTo mount the gun on a reciprocating arm [0.5 in. (13mm) diameter maximum], insert the bar (A) throughthe hole in the

Page 31 - 309030 31

8 309030Setup1. Connect the Air LineNOTE: You must install an air pressure regulator (F) oneach gun air line to control air pressure to the gun.See F

Page 32 - Graco Information

309030 9Setup9400A9399AFig. 6KEYN Cylinder Air Inlet: accepts 1/4 in. (6.3 mm) O.D. tubingP Atomization Air Inlet: 1/4–18.6 npsmR Fan Air Inlet: 1/4

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