Graco Model D - Manual

Overall View 6 311320G Centerline Components F IG . 2: Centerline Components Coupling Block Gaskets Air Cap Mixing Chamber Case Snap Ring Screen Seal A-Iso Check Valve Screen Screw Gun BlockMounting Screw O-Ring ClosureScrew Valving RodAssembly Felt Wiper Retainer Gun Block R-Resin Check Valve Scree...

Operation Basics 311320G 7 Operation Basics Isocyanate Hazard Keep A and B Components Separate Grounding Check your local electrical code and propor-tioner manual for detailed grounding instruc-tions. Ground the spray guy through connection to a Graco-approved grounded fluid supply hose. Coupling Bl...

Operation Basics 8 311320G Manual Valves 1. Open manual valves using 5/16 in. nut driver; turn manual valves counterclock-wise approximately three full turns. Do not open until it bottoms out. 2. Close manual valves by turning fully clock- wise. F IG . 4: Manual Valves Remove Coupling Block 1. Disco...

Operation Basics 311320G 9 Air Hose Connection To CONNECT air hoses, pull back sleeve of female fitting, insert male fitting and slide sleeve forward to secure connection. To DISCONNECT air hoses, pull back sleeve of female fitting and remove male fitting. F IG . 5: Air Hose Connection Valving Rod A...

Operation Basics 10 311320G Air Cap Adjustment Valve Use to control amount of air that passes through air cap and over mixing chamber tip. Airflow helps keep tip free of sprayed chemical. Too much air may distort spray pattern and create overspread. Too little air will not prop-erly clean end of val...

Initial Set Up 311320G 11 Initial Set Up 1. Remove coupling block from gun. 2. Check valving rod clearance in closed posi- tion. Rod should extend approximately 1/32 in. (1 mm) beyond tip of mixing chamber. If it does not, see Valving Rod Adjustment procedure, page 21. F IG . 9: Valving Rod (Closed ...

Daily Start-Up 12 311320G Daily Start-Up 1. Connect air supply to gun, page 9. 2. Adjust air cap valve, page 10. 3. Saturate felt in felt wiper with gun cleaner using flush can. 4. Trigger gun multiple times to ensure valving rod moves the full travel quickly and freely. 5. Open both manual valves, ...

Pressure Relief Procedure 311320G 13 Pressure Relief Procedure 1. Close both manual valves. 2. Trigger gun once onto waste area to relieve fluid pressure in front end of gun. 3. Disconnect gun air supply, page 9. 4. If gun is removed from coupling block, fol- low Clean Spray Gun Procedure, page 18. ...

Spray Pattern Adjustment 14 311320G Spray Pattern Adjustment 1. Check valving rod clearance in closed posi- tion. Rod should extend approximately 1/32 in. (1 mm) beyond tip of mixing chamber. If it does not, see Valving Rod Adjustment procedure, page 21. F IG . 10: Valving Rod (Closed Position) 2. A...

Maintenance 311320G 17 Maintenance Gun Service Kits Use either the 1-Quart Gun Service Kit (296980) or 3-Gallon Gun Service Kit (296981) to perform daily flushing of spray gun without disassembly. F IG . 15: 1-Quart Gun Service Kit For more information about the 1-Quart Gun Service Kit, see manual 3...

Maintenance 18 311320G Clean Spray Gun Procedure Thoroughly flush gun block with gun cleaner before removing valving rod or mixing compo-nents from gun block. Also allow chemicals in spray gun to cool before cleaning. This procedure makes use of the 1-Quart or 3-Gallon Gun Service Kit. 1. Close both...

Repair 311320G 19 Repair Filter Screen Removal and Service 1. Perform Pressure Relief Procedure (page 13) and Clean Spray Gun Procedure, page 18. 2. Unthread screen mounting screw. Remove screen mounting screw and filter screen assembly from gun block. F IG . 17: Filter Screen Assembly 3. Remove scr...

Repair 20 311320G Clean Injection Slots 1. Perform Pressure Relief Procedure (page 13) and Clean Spray Gun Procedure, page 18. 2. Remove check valves. F IG . 18: Check Valves 3. Inspect check valves to ensure sleeve is secured, and place check valves in sepa-rate containers of gun cleaner. 4. Flush ...

Repair 311320G 21 Valving Rod Adjustment In closed position, valving rod should extend approximately 1/32 in. (1 mm) beyond tip of mixing chamber. If it does not, follow this pro-cedure: F IG . 19: Valving Rod (Closed Position) 1. Perform Pressure Relief Procedure (page 13) and Clean Spray Gun Proce...

Parts 26 311320G Parts Model D Spray Gun Assembly M L K AF Z B X U V E W AC AK AB AA G AP AL AS Y J F B AD H A S AG AJ D AM D R AE N AN AR AQ T D C AT

Parts 311320G 29 Standard Mixing Chambers Six standard mixing chambers are available. The following table provides a general description about use and operational performance of each chamber. Actual pattern sizes and outputs achieved may vary depending on material viscosity, hose length, condition o...

Parts 30 311320G Air Cylinder Assembly Part Number 296632 ❄ Parts included in Air Cylinder Seal Kit 296725 (purchase separately) ▲ Replacement Danger and Warning labels, tags, and cards are available at no cost. Ref. No. Part No. Description Qty. A ❄ 107083 O-ring, fluoroelastomer 1 B 295494 Pan hea...

Parts 311320G 31 Coupling Block Assembly Model 295887 (Standard) Model 295884 (Recirc) Model 295887 Model 295884 A G G E D C B A F E D E A D A G F B C Ref. No. Part No. Description Qty. A 295662 Flush seal pipe plug, 1/8 in. 2 B 295888 R-swivel fitting 1 C 295889 A-swivel fitting 1 D 296626 Manual v...

Technical Data 311320G 33 Technical Data * Theoretical: actual results will vary with operating conditions Category Data Maximum Fluid Working Pressure 1000 psi (7 MPa, 70 bar) Maximum Air Inlet Pressure 100 psi (0.75 MPa, 7.5 bar) Minimum Air Inlet Pressure 90 psi (0.6 MPa, 6 bar) Maximum Output (f...

All written and visual data contained in this document reflects the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice. Original instructions. This manual contains English. MM 311320 Graco Headquarters: Minneapolis Int...