Graco Inc 311321H, GX-7 400, GX-7 DI Maintenance, Gun Service Kits, Clean Spray Gun Procedure

Page 20

Maintenance

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.

FIG. 22: 1-Quart Gun Service Kit

For more information about the 1-Quart Gun Service Kit, see Manual 311340.

FIG. 23: 3-Gallon Gun Service Kit

For more information about the 3-Gallon Gun Service Kit, see Manual 311341.

Clean Spray Gun Procedure

To avoid static sparking that may result in fire or explosion, ensure all equipment in cleaning procedure is grounded. Do not clean on or near foamed or coated surfaces or any other flammable surfaces or objects.

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 procedures makes use of the 1-Quart or 3-Gallon Gun Service Kit.

1. Set safety stop to CLOSED (SERVICE).

20

311321H

Image 20

Contents GX-7 Important Safety Instructions311321H Contents ModelsPersonal Protective Equipment Fire and Explosion Hazard Pressurized Aluminum Parts Hazard Model GX-7 DI Overall ViewModel GX-7A Model GX-7 LocknutValving Rod Rear Stop Gun Block Air Cap Valve TriggerCenterline Components GX-7A Centerline ComponentsGX-7 400 Centerline Components Mixing Module GX-7A Mixing ModuleSafety Position Operation BasicsIsocyanate Hazard Keep a and B Components SeparateDisengage Safety Stop Air Hose ConnectionConnect Air Hoses Disconnect Air HosesManual Valves Installation and RemovalCoupling Block Remove Coupling Block Air Inlet ConfigurationOptional Configuration Mixing Module and PCD Installation Do not OvertightenGX-7 DI Model Only Valving Rod AdjustmentGX-7A and GX-7 400 Models Only Initial Set Up Daily Start-up Daily ShutdownPressure Relief Procedure Trigger GunClean Spray Gun Procedure MaintenanceGun Service Kits Flush Gun Remove Centerline Components Service Screen ScrewRepair Remove valving rod. Rod Draw Bar Valving Rod Install Centerline Components Replace End Cap and Air Piston Assembly GX-7 DI ShownReplace Trigger Valve O-Rings Replace Trigger Valve O-RingClean Mixing Module Unthread Cap from PCD BodyInstall Mixing Module Install Mixing ModuleClean Pattern Control Disc GX-7A Model ShownGX-7A Model Final Assembly PartsModule see GX-7A Mix Mod GX-7A Model Final AssemblyNo. Part No. Description GX-7 DI Model Final Assembly No. Part No. Description Qty GX-7 DI Model Final AssemblyModule see GX-7 DI Model Specifications , GX-7 400 Model Final Assembly GX-7 400 Model Final Assembly Module Kit ,GX-7A Model Handle Assembly GX-7 Model Handle Assembly DescriptionGX-7 DI Model Handle Assembly GX-7 DI Model Handle Assembly Description QtyGX-7 400 Model Handle Assembly GX-7 400 Model Handle Assembly Coupling Block Assembly All modelsSpecifications GX-7A Mix Module KitSet-Up Chart for GX-7A Model TipModule Kits Cleanout Drill Iso Port GX-7 400 Mix Module KitQuantity In/mm Module Only Size RefSet-up Chart for GX-7 400 Model Tip Kits for GX-7 400 Gun No. Ref QuantityGX-7 DI Model Specifications Module/Tip Data for Chemical Sprayed at 2500 PSI OutputPattern Lbs/min Round Spray PatternTip Kits Tool KitsFor GX-7A and GX-7 DI Models Round Tip Kits Size QuantityTechnical Data Category DataGraco Standard Warranty