11 .........maintenance, 11 .........troubleshooting, Maintenance – BUG-O Systems K-BUG 1200 User Manual
Page 11: Troubleshooting

11
MAINTENANCE
The K-BUG carriage should be periodically checked and cleaned to maximize service life.
Before use:
Check all screws in the torch clamp and guide rollers. Tighten as needed. Loose fasteners may
cause uneven travel or inconsistent weld quality.
During use:
Monitor wheels, motor and welding torch for abnormal noise or overheating.
After each use:
1. Clean control panel to remove dust and other debris.
2. Inspect carriage base, wheels, guide rollers, slide adjustment, magnets and torch for weld
spatter or other debris. Clean as needed.
3. Inspect power cable and torch cable for cracked, cut or damaged insulation. Replace as
needed.
4. Inspect connectors for damaged pins or loose connections. Replace as needed.
TROUBLESHOOTING
Symptom
Cause
Repair
Control panel
Display is not LIT
when machine is
plugged in
Disconnected Control Cable
Verify control cable is properly
connected to machine
Faulty Control Cable
Replace Cable
Control Box Fuse Tripped or
Disconnected
Replace fuse. If problem persists,
contact service rep.
No Arc when
Welding Auto/Off
Switch turned to
AUTO
Weld Auto/Off Switch set to OFF
Turn Weld Auto/Off Switch to AUTO
Loose contact of Welding Leads
Check ground connections. Verify good
contact on clean, unpainted surface.
Faulty or incorrectly wired Welding
Auto/Off Switch
Check Wiring. Replace Switch, if
needed
Stop Sensor Engaged
Disengage Stop Sensor
Carriage does not
travel when Cycle
Start Button is
pushed
Failed drive component
Check Motor and Gearbox. Replace as
needed
Faulty or incorrectly wired Cycle Start
Button
Check Wiring. Replace button , if
needed
Faulty MAIN PCB
Replace MAIN PCB
Torch targets wrong
position
Loose fastener on Torch Clamp or
Torch Adjustment Slider
Check and tighten screws, replace if
needed.
Slide is hard to
adjust
Dust or other debris on slide parts
Clean slide parts. Lubricate with light
oil
Carriage stops
during automatic
welding
Obstacle in carriage path
Remove obstacles
Stop Sensor engaged
Disengage Stop Sensor
Distance traveled exceeds Total
Length
See “Intermittent Welding” on page 7
for instructions to set Total Length
Arc continues after
Welding Auto/Off
Switch is set to OFF
The Welding Auto/Off Switch is still
set to Auto
Turn Weld Auto/Off Switch to OFF
Faulty or incorrectly wired Welding
Auto/Off Switch
Check Wiring. Replace Switch, if
needed.
Unable to perform
Intermittent Welding
Intermittent Welding is locked
Press and hold Travel Speed
Adjustment knob for 3 seconds.