Troubleshooting - Kemppi A7 Operating Manual

14. TROUBLESHOOTING

If the measures described below are not successful, please consult your dealer or the manufacturer.
Also consult the operating instructions for the welding components: the welding power source, welding torch system,
re-circulating cooling unit, and so on.
Problem
Compressed-air motor does not run
Insufficient cleaning
Welding torch parts damaged
Table 12: Troubleshooting the injection unit
Problem
No injection
Too much or too little spray mist
Too little spray mist
No spray mist
Table 13: Troubleshooting the wire-cutting device
Problem
No cutting function
Insufficient cutting capacity
Free wire end is bent
Cause
• Compressed-air supply or hose connection interrupted
• Compressed-air supply or hose connection interrupted
• Milling cutter defective or worn out
• Wrong equipment parts
Cause
• Insufficient fluid level
• Compressed-air supply or hose connections
interrupted
• Directional valve Y4 does not switch
• Metering quantity incorrectly adjusted
• Injection time too short
• Operating pressure too low
• Operating pressure too low
Cause
• Compressed-air supply or hose connection interrupted
• Directional valve Y3 does not switch
• Too low working pressure
• Roughly running slide
• Worn cutting edge
• The wire has no contact with the fixed jaws
• Counter-support jammed
© Kemppi Oy 2016
Solution
• Check all supply lines leading to the cylinder and the fittings
• Motor defective; replace
• Replace directional valve Y2
• Replace milling cutter
• Check torch-dependent parts (milling cutter and clamping prism)
• Check immersion depth of torch
Solution
• Add more anti-spatter fluid
• Check all supply lines leading to the cylinder and the fittings
• Replace directional valve Y4
• Change setting of throttle screw
• Injection time greater than waiting time
• Check operating pressure
• Check operating pressure
Solution
• Check all supply lines leading to the cylinder and the fittings
• Check signal output of robot control
• Replace directional valve Y3
• Check the adjustment of the pressure regulator: min. 5 bar, max. 8 bar
• Unmount movable parts; clean and lubricate them
• Clean more often
• Change approach position P4
• Change the cutter
• Correct the approach position of the welding torch
• Unmount movable parts; clean and oil them
• Tighten the mounting screws
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Robot Gun Cleaning Station 1616