Diesel SA250 code 9023 power to solenoid is in and out mostly out, at infeed of auto idle switch power will remain at around 13.6 volt machine running high idle position. When you switch to auto idle the machine will begin to idle then power will drop out to almost nothing then bounce around 1-2 volts. Switch back to high idle and 13.6volt will return to infeed terminal of idle switch. In short the machine will begin to go to idle and then solenoid loosed power and machine jumps back to high. Sometimes if left in idle position the process will repeat. Last time machine was put up everything was fine. I have cleaned the bore and plunger on idle solenoid, cleaned board connections and connection where board mounts for ground. Female spade terminals are a little hard to get clean inside."Si Vis Pacem Para Bellum"Lincoln Idealarc 250 AC/DCMillermatic 251 Syncrowave 300 30A spoolgunLincoln MP210Hypertherm 45(2) LN 25(2) Lincoln Weldanpower 225 CV(4) SA200 1 short hood SA250 SAM 400
Reply:Very possibly a board issue such as the power transistor for idler solenoid failing under load.MM200 w/Spoolmatic 1Syncrowave 180SDBobcat 225G Plus - LP/NGMUTT Suitcase WirefeederWC-1S/Spoolmatic 1HF-251D-1PakMaster 100XL '68 Red Face Code #6633 projectStar Jet 21-110Save Second Base!
Reply:Anyway to test further on board Duane?Also what is the power flow for this circuitDoes power from the switch go to the board or does power come from the board to the switch and out to idler solenoid?
Reply:Just like the SA200, power flow is from switch to board/idler solenoid and the board controls the solenoid ground.How I test idler boards
INCOLN IDLER BOARD BENCH TEST PROCEDURE Connect 12VDC(-) to one of the mounting holes (use a machine screw and nut to connect).Connect one lead of a 12VDC light bulb to the "W" terminal.Connect 12VDC(+) to the other lead of the 12VDC light bulb.Apply 12VDC(+) to "Y" terminal.Light bulb should light in 12-15 seconds.Apply 12VDC(-) to "R" (red wire) and light should go out.To test board mounted reed switch, run 12VDC load thru (NOT to) "B" terminals. I use my 18V cordless drill with jumper leads from battery to drill motor terminals. Pull the trigger to apply load.(+) from power source to one “B” terminalfrom other "B" terminal to one side of load(-) from power source to other side of loadlight should go out when load is connectedMM200 w/Spoolmatic 1Syncrowave 180SDBobcat 225G Plus - LP/NGMUTT Suitcase WirefeederWC-1S/Spoolmatic 1HF-251D-1PakMaster 100XL '68 Red Face Code #6633 projectStar Jet 21-110Save Second Base!
Reply:Sounds thorough DuaneWon't be able to test till sometime next week when I get back homeWill post results
Reply:OK Duane, here's what I found looks like some issues.following sequence#3 connect 12VDC + to test light after about 5 seconds delay light comes on but glows dim break connection and process repeats consistently#4 apply 12 VDC + to Y terminal with above connection in place light glowing dim Light goes bright immediate no delay#6 apply 12 VDC - to Red terminal light goes out immediate break connection to Red Light comes on after 6-8 second delay consistently# 7 all connections above in place but Red connection broken Light is on 1. Making 12 VDC + power connection to B terminal farthest to the left in picture, good arc occurs and light goes out immediate break connection light on repeat consistently Connect to other B terminal no arc but light goes out immediate break connection light returns repeat consistently For this reason I did not complete the load test with the drill motor as you suggested. Can I repair or pinpoint a component or do I need and would it be better to replace the board. Looks like a diode on there and thinking it might be suspect as I seem to have power where and when I should not."Si Vis Pacem Para Bellum"Lincoln Idealarc 250 AC/DCMillermatic 251 Syncrowave 300 30A spoolgunLincoln MP210Hypertherm 45(2) LN 25(2) Lincoln Weldanpower 225 CV(4) SA200 1 short hood SA250 SAM 400
Reply:Well I erred in that I forgot your unit was the diesel with AC auxiliary power. As such, your idler board receives a low AC voltage signal at the two BLUE terminals upon an auxiliary power load. One also connects to chassis ground and I believe it's the outer one but I don't know if it matters which one does.As such, the DC voltage load test described above doesn't apply although the rest of the procedures you performed do.Re-reading your original description with regard to the voltage dropping at the idler switch I suspect the engine protection relay NC contacts may be to blame. To confirm or disprove, jumper 12VDC+ directly to the idler switch and see if the idler system works properly.MM200 w/Spoolmatic 1Syncrowave 180SDBobcat 225G Plus - LP/NGMUTT Suitcase WirefeederWC-1S/Spoolmatic 1HF-251D-1PakMaster 100XL '68 Red Face Code #6633 projectStar Jet 21-110Save Second Base!
Reply
uane, I believe you are correct the outer blue appears to be common to ground, in picture you can see I bolted a ring terminal to mounting hole for ground and diagnostic test trace on back appears to contact with outer blue terminal. Now when I made my first connection in the test my test light came on dim, is that ok, normal? I will have to put the board back in to put 12 v direct to idler switch I am assuming or should I test without board? What should I look for to identify engine protection relay? if it is a simple auto relay I can just change it out."Si Vis Pacem Para Bellum"Lincoln Idealarc 250 AC/DCMillermatic 251 Syncrowave 300 30A spoolgunLincoln MP210Hypertherm 45(2) LN 25(2) Lincoln Weldanpower 225 CV(4) SA200 1 short hood SA250 SAM 400
Reply:Yes, you'll need to reinstall the idler board to by-pass the engine protection relay which is behind the push button at the bottom of the faceplate just left of center.You should jumper between the "B" terminal (wire #58 from ignition switch) and the "NC" terminal (wire #59B to the idler switch).You should also check the condition and contact of the relay fuse in its holders.Last edited by duaneb55; 06-30-2018 at 10:07 PM.MM200 w/Spoolmatic 1Syncrowave 180SDBobcat 225G Plus - LP/NGMUTT Suitcase WirefeederWC-1S/Spoolmatic 1HF-251D-1PakMaster 100XL '68 Red Face Code #6633 projectStar Jet 21-110Save Second Base!
Reply:I'll try to get that done tomorrow, is there a different bench test for my Diesel Idler board that I should do while I have it off or is that out for this unit, part # on it is M-13708-1 if it helps.on a lighter note, there talking about 100 degrees here tomorrow, Common occurrence for you Texans but up north here in CT , were in full panic mode. LOL"Si Vis Pacem Para Bellum"Lincoln Idealarc 250 AC/DCMillermatic 251 Syncrowave 300 30A spoolgunLincoln MP210Hypertherm 45(2) LN 25(2) Lincoln Weldanpower 225 CV(4) SA200 1 short hood SA250 SAM 400
Reply:I'd say reinstall the board and address the low voltage issue per above or similar and go from there.Today was a cool 92F and only 88% humidity.MM200 w/Spoolmatic 1Syncrowave 180SDBobcat 225G Plus - LP/NGMUTT Suitcase WirefeederWC-1S/Spoolmatic 1HF-251D-1PakMaster 100XL '68 Red Face Code #6633 projectStar Jet 21-110Save Second Base!
Reply:Are Humidity gets to the 70 % range and we melt. Duane, do you know what ever happened to Andex and that 36 restoration?"Si Vis Pacem Para Bellum"Lincoln Idealarc 250 AC/DCMillermatic 251 Syncrowave 300 30A spoolgunLincoln MP210Hypertherm 45(2) LN 25(2) Lincoln Weldanpower 225 CV(4) SA200 1 short hood SA250 SAM 400
Reply:Originally Posted by kolot Duane, do you know what ever happened to Andex and that 36 restoration?
Reply:Well I didn't get a chance to jump power around the idler but had occasion to use the machine for a couple hours, started and went to idle ok, but then it later dropped and went high idle. In any event I was welding with it and over time it got much better and now seems to be working. On that engine protection relay I assume there are contact and they might have been dirty or corroded , by using it may have cleaned up as this machine has been idle for some time. In any event I still want to address the problem. What will I find in the little box behind the push button or should I just see if that part is available?"Si Vis Pacem Para Bellum"Lincoln Idealarc 250 AC/DCMillermatic 251 Syncrowave 300 30A spoolgunLincoln MP210Hypertherm 45(2) LN 25(2) Lincoln Weldanpower 225 CV(4) SA200 1 short hood SA250 SAM 400
