Graco Inc 218-745, 307-712, PRO 5000 manual Barrel Removal, Fluid Needle Packing Replacement, 66b

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SERVICE

Barrel Removal

1.Unscrew the nut (34) at the gun's fluid inlet adapter (35). See the PARTS DRAWING.

2.Pull the fluid tube (31) out of the fluid adapter (35).

3.Remove the trigger by removing the screws and spacers from the gun.

4.Remove the ES indicator lights from the socket head cap screws (52).

5.Using the wrench (66f) supplied, loosen and remove the two socket head cap screws (52) from the gun. See Fig 12.

6.Hold the gun body with one hand and pull straight up to remove the gun barrel (20). See Fig 13.

CAUTION

To avoid damaging the power cartridge, always pull the gun barrel straight away. If necessary, gently move the gun barrel from side to side to free it from the gun body.

NOTE: The gasket (6) should be left in the gun body if the gasket is not to be replaced.

To install the barrel (20), follow the procedure below:

1.Be sure the gasket (6) is in place. Replace if dam- aged. Place the barrel over the power cartridge (2) and onto the gun body. See Fig 13.

2.Install the two socket head cap screws (52) and tighten with the wrench (66f). See Fig 12.

3.Snap the ES indicator lights in place over the socket head cap screws (52).

4.Insert the fluid tube (31) into the gun's fluid inlet adapter (35) and tighten the nut (34).

5.Install the trigger with the screws and spacers. Test the gun resistance as instructed on page 16.

Fluid Needle Packing Replacement

1.Remove the air cap assembly and fluid nozzle as described in To Clean or Change Air Cap and Fluid Nozzle.

2.Remove the electrode as described under Elec- trode Replacement.

3.Remove the gun barrel as described under Barrel Removal.

4.Unscrew the packing nut (9e) using the wrench (66b) supplied. See Fig 14.

KEY

31Fluid Tube

52Cap Screw

66f Wrench

66f

31

52

Fig 12

KEY

2

Power Cartridge

 

6

Gasket

 

20

Gun Barrel

20

 

 

 

 

6

2

Fig 13

KEY

9e

Packing Nut

66b

66b

Wrench

 

9e

Fig 14

 

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Contents Automatic MID-RANGE Electrostatic Rev PPart Number 218±745, Series B This manual contains Important  Table of Contents TermsHazardous Fluid Hazard Hose SafetyEquipment Misuse Hazard Flushing and Cleaning Safety Ventilate the Spray BoothFire or Explosion Hazard HOW the Electrostatic AIR Spray GUN WorksTypical Installation Ventilate the Spray BoothNON±HAZARDOUS Area KEY Hazardous AreaInstallation Mount the GunInstalling Optional Remote Fan Air Adapter Check the Electrical GroundingOperating Checklist OperationFilter the Fluid Spraying OperationAdjust the Spray Pattern AccessoriesMaintenance Daily Care and CleaningFlush the Spray Gun GUN in SolventTo Clean or Change Air Cap and Fluid Nozzle Equipment neededSpray Pattern Troubleshooting Chart Problem Cause Solution Improper Spray PatternGUN Operation Troubleshooting Chart Problem Cause SolutionElectrical Troubleshooting Chart See Check the Electrical GroundingTest Gun Resistance Test Power Supply ResistanceElectrical Tests Test Resistor Stud Resistance Service Gun DisassemblyGun Assembly Note Electrode ReplacementResistor Stud Replacement To install the resistor stud66b Fluid Needle Packing ReplacementBarrel Removal Service Power Cartridge Replacement Turbine Alternator RemovalFan Air Valve Replacement Piston Removal and Repair Disc Regulator ORing Replacement Detail a Ref No Power CartridgeRef No 66, Tool Kit Parts List Old/New Style Resistor Stud and ElectrodeKits Description QtyTechnical Data Service InformationHOW to Order Replacement Parts Assembly Changed Status No. Part No NameAccessories High Volume AIR Regulator 206±199Grounded AIR Supply Hose AIR Hose Adapter 185±493Remote Switch & Signal Light 728±386 Control Panel 218±394 Filter AIR or Paint 202±271Electrostatic System 231±035 Electrostatic System 231±036Graco Warranty and Disclaimers WarrantyImportant Phone Numbers To you 1±800±328±0211 Toll Free