Kemppi A7 MIG Gun 500-g Operating Manual

Contents

15A7 MIG Gun 500-g©Kemppi Oy 2016 1616OPERATING MANUAL12.3.2 Shortening the wire linerThis section describes how to shorten the wire liner.Unused wire liners or PA liners have to be shortened tothe actual length of the hose assembly.Mounting of plastic liners is similar to mounting ofwire liners. Refer to the operating instructions of themanufacturer of the wire feeder.Plastic liners are used for aluminum. Plastic liners andfastening material are available on request.Figure 8: Shortening the wire liner2165431. Support sleeve2. Central plug3. Hose assembly4. Retaining nut5. Collet chuck6. LinerProceed as follows:1. Lay out the hose assembly (3) straight.2. Disconnect the central plug (2) from the feed unit.3. Remove the old liner (6), and replace it with a newone. Then insert the non-insulated side into thecentral plug (2) as far as it will go.4. Place the support sleeve (1), turned 180°, on thenew spiral liner (6) (on the side without the liner).5. Cut off the protruding wire liner (6). The liner mustbe even with the support sleeve (1).6. Screw the collet chuck (4) onto the spiral liner (6) asfar as it will go.The position of the wire guide can be checkedthrough the sight hole of the collet chuck (5).7. Slide the collet chuck (5) and the wire liner (6) intothe central plug (2) as far as they will go.8. Slide the support sleeve (1), with the thread sidefirst, into the central plug (2), and tighten it.9. Attach the hose assembly (3) to the central plug (2),using the retaining nut (4).12.3.3 Cleaning the gun neckThis section describes how to clean the gun neck.To increase the availability time of the welding robot,Kemppi offers an option for automated gun cleaning.Proceed as follows:1. Remove the gas nozzle.2. Remove welding spatter, and spray the gas nozzlewith a suitable anti-spatter agent.3. Check the wear parts for visible damage, andreplace any damaged parts if doing so is required.4. Replace the equipment kit if it is worn or dirty.5. Clean the separating point and O-rings with asilicone-free sealing grease.6. Check the TCP after each use and after anycollisions. Use, for example, an alignment jig to dothis.