Graco Inc 3500WB, 308584 Graco Waterborne Fluid Hose Repair, Measurements, inches mm, Service

Page 42
Graco Waterborne Fluid Hose Repair

Service

Graco Waterborne Fluid Hose Repair

Measurements, inches (mm) WARNING

FIRE, EXPLOSION, AND ELECTRIC

SHOCK HAZARD

To reduce the risk of a fire, explosion, or electric shock:

DFollow the Fluid Voltage Discharge and Grounding Procedure on page 16 and be sure the ES ON-OFF lever is turned to OFF before flushing, checking, or servicing the system and whenever you are instructed to dis- charge the voltage.

DClean all the parts with a non-flammable fluid as defined on the front cover of this manual.

DDo not service this equipment unless you are trained and qualified.

DDo not touch the gun nozzle or come within 4 inches (101.6 mm) of the nozzle during gun op- eration or until after following the Fluid Voltage Discharge and Grounding Procedure..

Manual background WARNING

PRESSURIZED EQUIPMENT HAZARD

To reduce the risk of an injury, follow the Pressure Relief Procedure on page 16 before checking or servicing any part of the system and whenever you are instructed to relieve the pressure.

Damaged hoses or hoses that have a “pin-hole” dielec- tric failure, close to the end of the hose, can be re- paired by cutting away the failed portion and restrip- ping the hoses to the dimensions shown in Fig. 29.

1.Discharge the voltage as instructed on page 16.

2.Relieve the system pressure as instructed on page 16.

3.Disconnect the fluid hose from the gun and voltage isolation system.

4.Cut off the damaged end of the hose. If the hose has a pin-hole failure, strip back the outer hose jacket (H) and the conductive layer (J) about 12 inches (105 mm) on each hose end. Look for the failure point, which will be a very small pin-hole, discolored due to arcing. Continue stripping back the hose until the failure point is found.

5.Carefully cut through the outer hose jacket (H) and peel it back about 12 inches (105 mm). Do not cut into the conductive layer (J) of the hose.

6.Cut through the first 1/2 inch (12.7 mm) of the conductive hose layer (J) to create an edge to hold onto. Peel back the conductive hose layer by unwrapping it in a spiral pattern. Cut it off at the dimension shown in Fig. 29.

7.Cut off the inner hose layer (K) to the dimension shown in Fig. 29.

8.Inspect the hose for any nicks or cuts. Any nicks or cuts into the inner hose layer (K) will weaken the dielectric strength of the hose and shorten the service life. Repeat the above procedure if any damage is found.

9.Install a new barbed fitting by applying red dielec- tric grease to the outside of the barbs, and press- ing the fitting into the gun end of the hose. Refer to the drawing of the Waterborne Fluid Hose Assem- bly on page 48.

10.Install the three o-rings on the barbed fitting.

11.Connect the fluid hose to the gun as instructed on page 12.

Measurements, inches (mm)

A*

B*

C

D

 

 

 

 

7.75 + 0.1

9.375 + 0.1

4.075 + 0.1

4.375 + 0.1

(196.85 +

(238.13 +

(103.5 + 2.5)

(111.1 + 2.5)

2.5)

2.5)

 

 

*The measurements specified are for use with the Graco H2O PRO Voltage Block isolation system.

Isolation System End

Spray Gun End

B

D

A

C

KJ HJ K

05180

Fig. 29

42 308584

Image 42
Contents 100 psi 0.7 MPa, 7 bar Maximum Working Pressure INSTRUCTIONS-PARTS LIST308584 Part No. 222700, Series CWarning Symbol Table of ContentsSymbols Caution SymbolELECTRIC SHOCK HAZARD FIRE AND EXPLOSION HAZARD PRESSURIZED EQUIPMENT HAZARDWarnings are continued on the next page EQUIPMENT MISUSE HAZARD TOXIC FLUID HAZARDOperating the Electrostatics IntroductionSpraying Waterborne Fluids Electrostatically Refer to Fig. 1, pageB A C D Conductive Hose Layer DD covers the PTFE tube Graco Waterborne Fluid Hose purchased separatelyD Inner Hose Layer EE is a PTFE tube H2O PRO Voltage Block connection shownVentilate the Spray Booth InstallationInstalling the System Warning SignsT S N K L Consult your isolation system manual for other configurationsPRO 3500wb Gun shown with the Graco H2O PRO Batch System M G F NH R B A E D P CConnect the Air Line Install the Air Line AccessoriesInstall the Fluid LIne Accessories Connect the Exhaust TubeFilter the Fluid Connect the Fluid HoseContinued on the next page Connect the Fluid Hose continued H2O PRO Voltage Blockconnection shown Ground the System FIRE, EXPLOSION, AND ELECTRIC SHOCK HAZARDCheck the Electrical Grounding Fluid Voltage Discharge and Grounding Procedure Pressure Relief ProcedureOperation Operating Checklist Selecting a Fluid Nozzle and Air CapOperating the Spray Gun FIRE AND EXPLOSION HAZARDCOMPONENT RUPTURE HAZARD Atomizing Air Valve Adjustment Fine Adjustments of the Spray GunMaintenance Daily Care and CleaningShutdown Flush the Spray Gun Clean the Air Cap and Fluid NozzleProcedure Equipment neededSpray Gun TroubleshootingVoltage Loss Troubleshooting Waterborne Fluid HoseVoltage Loss Troubleshooting continued TestsSolution Electrical TroubleshootingProblem CauseSpray Pattern Troubleshooting Poor Electrostatic Wrap Troubleshooting Gun Operation TroubleshootingGun Operation Troubleshooting continued Electrical Tests Test Gun ResistanceTest Power Supply Resistance Test Resistor Stud ResistanceAir Cap/Nozzle/Resistor Stud Replacement ServicePrepare the Gun for Service Tools Included with the GunAir Cap/Nozzle/Resistor Stud Replacement continued InstallationElectrode Needle Replacement Fluid Packing Rod Removal and Repair Preventative MaintenanceIf installing the complete fluid rod assembly, go to step 11, page WhereFluid Packing Rod Removal and Repair continued If installing the complete valve, go to step Fan Air Adjustment Valve RepairFluid Adjustment Assembly Repair DETAILFluid Adjustment Assembly Repair continued Air Trigger Valve Repair Apply a very light coat of lubricant to the o-rings 41 Atomizing Air Valve Repair ES ON-OFF Valve Repair MOVING PARTS HAZARD05363B Barrel Removal Power Supply Replacement  Apply a very light coat of lubricant to the o-rings 37a Do not expose the gasket 18a to solvents Turbine Alternator Replacement Barrel Installation05158B Graco Waterborne Fluid Hose Repair Measurements, inches mmPRO 3500SC Gun Disassembly NOTE Keep all the following parts for reassemblyPRO 3500sc Gun Conversion Installing the Fluid Needle Assembly 10. Tighten the nut 78* onto the ferrule housing Spray Gun Parts See Detail AY Replacement Warning signs are available at no cost EQUIPMENT MISUSE HAZARDPart No. 222700, Series C Model PRO 3500wb Spray Gun DescriptionWaterborne Fluid Hose Assembly AccessoriesUse Only Genuine Graco Parts and Accessories 100 psi 0.7 MPa, 7 bar Maximum Working PressureSnap Ring Pliers For use in the Fluid Voltage Discharge and Ground- ing ProcedureManual Change Summary Gun High Voltage Probe & MeterPage Technical Data CategoryData WARRANTY The Graco Warranty and DisclaimersGraco Phone Number EQUIPMENT NOT COVERED BY GRACO WARRANTY