Lincoln ranger issues.
Hi all, just looking for a bit of advice regarding my ranger 305. I fired it up this morning To complete a job on a 4 foot excavator bucket. About an hour in I lost welding power, I had machine in wire feed mode and was using an Ln25 across the arc feeder. I changed to stick mode and found the same issue when I tried to burn a 3.25 rod. I measured the voltage across the weld terminals and got 45 v dc. It should be 60v dc. I noticed that when in arc mode the amps readout was sitting at 35 amps, on operating main current control it made no difference and current won’t increase. I tested the Single phase and 3 phase power output and this was ok. I took the top cover off and had a look at board connections etc and couldn’t see anything wrong. I changed the 3 phase rcd unit a couple of weeks ago and thought I might have disturbed something. I refitted the covers and used the machine as a Generator powering a 3 phase stick inverter, which I used for about 6 hours with no further problems. I now need to try and repair the fault, but am unsure whether to look for voltage drop on the welding circuit or on the welding control side. There is a board on the first bulkhead back from the front panel, that has plug connections to the amp and voltage displays along with various other connections. I assume that is the board that controls the machines output, I couldn’t see any physical signs of damage there, or anywhere else. All the power connection/ rectifier seem to be mounted low down and access is difficult especially if the machine is running. It doesn’t look possible to access them without removing the front panel. Any suggestions would be appreciated,
Cheers James.
Hi all, just looking for a bit of advice regarding my ranger 305. I fired it up this morning To complete a job on a 4 foot excavator bucket. About an hour in I lost welding power, I had machine in wire feed mode and was using an Ln25 across the arc feeder. I changed to stick mode and found the same issue when I tried to burn a 3.25 rod. I measured the voltage across the weld terminals and got 45 v dc. It should be 60v dc. I noticed that when in arc mode the amps readout was sitting at 35 amps, on operating main current control it made no difference and current won’t increase. I tested the Single phase and 3 phase power output and this was ok. I took the top cover off and had a look at board connections etc and couldn’t see anything wrong. I changed the 3 phase rcd unit a couple of weeks ago and thought I might have disturbed something. I refitted the covers and used the machine as a Generator powering a 3 phase stick inverter, which I used for about 6 hours with no further problems. I now need to try and repair the fault, but am unsure whether to look for voltage drop on the welding circuit or on the welding control side. There is a board on the first bulkhead back from the front panel, that has plug connections to the amp and voltage displays along with various other connections. I assume that is the board that controls the machines output, I couldn’t see any physical signs of damage there, or anywhere else. All the power connection/ rectifier seem to be mounted low down and access is difficult especially if the machine is running. It doesn’t look possible to access them without removing the front panel. Any suggestions would be appreciated,
Cheers James.