WAGNER GM 4700AC Original Operating Manual

Also see for GM 4700AC: Operating manual Translation of the original operating manual

Contents

WAGNER GM 4700AC Original Operating Manual Manual pdf 41 page image

4111 FUNCTION TEST AFTER REPAIR WORKAfter all repair work, the spray gun must be checked for safe condition beforerecommissioning. The necessary scope of inspection and testing depends on the repaircarried out and must be documented by the repair personnel.Assembly inspectionActivity Means1. Leak test– Connect 1 bar; 0.1 MPa; 14.50 psi and 8 bar; 0.8 MPa; 116 psi air pressureto the air connection and product connection.Air connection 1 bar / 8barPlace the spray gun completely into the water bath and check all sealingpoints with 1 bar; 0.1 MPa; 14.50 psi and 8 bar; 0.8 MPa; 116 psi for leaks.At 8 bar; 0.8 MPa; 116 psi bar, the gun must be completely sealed.At 1 bar; 0.1 MPa; 14.50 psi, a slight leak can be tolerated: 5 air bubblesper minute.Water bathInjection and Final InspectionActivity Means2. Trigger lever function test– The trigger lever must be pulled as far as it will go. Manual inspectionMake sure that the trigger lever can move slightly in its rest position.– Put the trigger lever locking device into the locking position, configurethe air product pressure, and pull the trigger lever.Neither air nor product may leak or escape.– Check that the trigger lever locking device is not reset by the triggerlever when pulling in the locking position.3. Leak test– Connect the gun, slowly increase the product pressure in incrementsusing a suitable medium until the maximum pressure (250 bar, 25 MPa;3625 psi or 160 bar, 16 MPa; 2320 psi) specified on the spring cap isreached.Visual inspection– Trigger and flush the spray gun multiple times. The 160 bar variant isinspected at 160 bar.– Check the following:- Is the product connection sealed when the gun is closed?- Is the product valve sealed?- Is there no product discharge at the valve rod seal?250 bar or 160 bar productconnectionAtomizing air 3 barSize 7 open-end wrenchfor the sealing screwIf product leaks, tighten the sealing screw:The sealing screw on the valve rod must be tightened.Tighten the sealing screw with the open-end wrench if necessary.(In doing so, it is important to make sure that the valve rod still runssmoothly and the gun closes reliably).VERSION 06/2018 ORDER NUMBER DOC2311730