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Graco 800N Instructions Manual

Stainless steel fluid passages air spray gun 100 psi 7 bar maximum working fluid/air pressure
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INSTRUCTIONS
This manual contains important
warnings and information.
READ AND RETAIN FOR REFERENCE
INSTRUCTIONS
Model 800N
STAINLESS STEEL FLUID PASSAGES
Air Spray Gun
100 psi (7 bar) Maximum Working Fluid Pressure
100 psi (7 bar) Maximum Working Air Pressure
See the charts on pages 4 and 5 for complete air
spray gun ordering numbers and descriptions.

Table of Contents

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GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
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COPYRIGHT 1980, GRACO INC.
307-453
Rev. E
Supersedes D

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Summary of Contents for Graco 800N

  • Page 1: Table Of Contents

    ........Graco Toll-Free Phone Numbers ....GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 COPYRIGHT 1980, GRACO INC.

  • Page 2: Warnings

    This equipment is for professional use only. Read all instruction manuals, tags, and labels before operating the equipment. Use the equipment only for its intended purpose. If you are not sure, call Graco Technical Assis- tance at 1–800–543–0339. Do not alter or modify this equipment.
  • Page 3 WARNING WARNING 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. Do not stop or deflect fluid leaks with your hand, body, glove, or rag. Follow the Pressure Relief Procedure on page 8 whenever you: are instructed to relieve the pressure;...

  • Page 4: Ordering Charts

    The charts below provide a cross reference between identifi- Using Chart 2, the flow rate required and fluid viscosity call cation numbers stamped on the parts and the Graco part for an 04N fluid nozzle and needle combination . number. Chart 1 shows the complete gun assemblies avail- By using Chart 3, you determine that the 02 air cap is best for able, grouped by basic gun type.
  • Page 5 Ordering Charts Chart 3: Air Caps Available Pattern Consumption Recommended Length cfm at psi Order Nozzle at 10 in. (m /min Pattern Shape Part (254 mm) Recommended Usage at bar) Type 21N 3N Number 14–17” Blunt end pattern. Low to medium 17 at 50 106–805 (355–430 mm)

  • Page 6: Installation

    Installation Pressure Feed Model Shown Model 800N Spray Gun Fluid Inlet; 3/8 npsm Air Inlet; 1/4 npsm Air Hose Air Shut-off Valve Air Regulator G Air Filter Air Supply Line Fig. 1 Ventilate the Spray Booth 1. Install an air filter (G) in the gun air supply line to ensure a clean dry air supply to the gun.
  • Page 7 Notes 307–453...

  • Page 8: Operation

    Operation NOTE: If the fluid adjustment knob is turned in all the Pressure Relief Procedure way, the gun will emit only air. WARNING Test Spray Pattern PRESSURIZED EQUIPMENT HAZARD Hold the gun about 10 in. (254 mm) away from the sur- The system pressure must be manually relieved to face of the test piece.

  • Page 9: Maintenance

    Maintenance 2. Relieve the pressure. CAUTION 3. Wipe the outside of the gun clean with a solvent To avoid contaminating the fluid being sprayed, be dampened cloth. sure that the solvents used are compatible with the fluid being sprayed. 4. If the air cap and fluid nozzle need cleaning, re- To avoid getting solvent in the gun air passages, lieve the pressure, and remove the air cap (3) never immerse the gun in solvent.

  • Page 10: Troubleshooting

    Troubleshooting 1. Relieve the pressure before you check or service WARNING any system equipment. 2. Check all possible causes and solutions in the To reduce the risk of serious injury whenever you Troubleshooting Chart before disassembling the are instructed to relieve pressure, always follow the gun.
  • Page 11 Troubleshooting Problem Cause Solution Fluid packing nut leaking. Loose needle packing nut (9). Tighten. Worn needle packings (10). Replace. Air leakage from front of gun. Air valve (12, 13) not seating properly. Clean, service. Fluid leakage from front of gun. Needle (1) worn or damaged.

  • Page 12: Service

    Service Apply Loctite 242 sealant or equivalent on threads and torque to 20 ft-lb (27 N.m). See Detail D. Lubricate daily with light oil. Turn counterclockwise to widen spray pattern. DETAIL D Turn clockwise to narrow spray pattern. Turn counterclockwise to increase fluid output. Turn clockwise to decrease fluid output.
  • Page 13 Service 5. Turn the fluid adjustment knob (6) in until it bot- Fluid Packing Replacement toms out, then back it out six full turns for proper spring adjustment. 1. If leakage occurs at the fluid needle packing nut (9), tighten the nut. If leakage does not stop, re- 6.

  • Page 14: Parts

    Parts Model 800N Includes items 1–22 Optional PTFE Needle 110–016 Packing Kit For use with ketones and some acetones. Replaces packing nut (9) and needle packing kit (10). Must order separately. 307–453...

  • Page 15: Dimensional Drawing

    Parts Part No. Description Qty. Part No. Description Qty. NEEDLE, fluid 106–840 KIT, packing, air valve See charts on pages 4 & 5 106–802 TRIGGER NOZZLE, fluid 105–606 SCREW, pivot, trigger See charts on pages 4 & 5 105–605 SCREW, retaining, trigger AIR CAP 106–846 GASKET...

  • Page 16: Accessories

    Accessories Use Only Genuine Graco Parts and Accessories Air Atomizing Hose, Buna-N Siphon Cup PC–12 105–700 200 psi (14 bar) Maximum Working Pressure 34 oz. (1000 cc) capacity; 3/8 npsm(f) 5/16 in. (7.9 mm) ID; cpld 1/4 npsm(f) swivel both Replacement diaphragm available.
  • Page 17 Accessories Use Only Genuine Graco Parts and Accessories Quick Fan Adjusting Valve 109–008 Makes quick pattern change from round patterns to flat patterns possible. Installing the Quick Fan Adjusting Valve 1. Remove the old fan adjusting valve from the gun.

  • Page 18: Air Flow Charts

    Air Flow Charts (Gun Model – Nozzle – Air Cap) Model 800N–04N–02 Model 800N–02N–021, 03N–021 Part No. 217– 852 Part No. 217–853, 854 Air Flow Air Flow (SCFM) (SCFM) Air Pressure (psig) Air Pressure (psig) (Gun Model – Nozzle – Air Cap) Model 800N–11N–1...
  • Page 19 Notes 307–453...

  • Page 20: Warranty

    Graco distributor to the original purchaser for use. As purchaser’s sole remedy for breach of this warranty, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment proven defective.

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