Electronics Forum | Fri Jul 19 18:21:17 EDT 2013 | microaide
We recently purchased some used Quad 4C machines. One of them does not seem to keep a stable origin reference point. I teach the nozzle and component pickup coordinates, then suddenly everything seems to be off by .030 to .040 inches in the X axis. I
Electronics Forum | Thu Nov 17 15:57:41 EST 2011 | olddog
Hi Bobpan, Regarding "second", the results of the test are no difference - still rejects the part. I tried 2 mils, 3 mils, 5 mils, 7 & 9. I changed the tolerances fron about 15% to 20%+. By the way, I did put on the new nozzle and it is still the sa
Electronics Forum | Mon Mar 16 06:12:32 EDT 2015 | bobpan
The first thing to do is to change the z-rod. Sometimes a very old z-rod spring will weaken causing it to reject many parts. If it only rejects parts after a nozzle change....you may need to put some super lube grease on the O-rings on the bottom of
Electronics Forum | Wed Aug 07 16:56:32 EDT 2013 | marcelorotofrance
When I turn the machine on, almost every time I turn the Motor Power Switch it trips. I must to put the lever down and raise it again, then every runs normally. I asked to the former owner about that and told me that this machine always did it so and
Electronics Forum | Mon Dec 30 21:38:56 EST 2013 | jkoughan
I've got a scary one for you guys and desperately need your help - We just purchased a second Quad 4C and had some communication problems when we first turned it on (we're still working on that issue). To chase down the problem, we decided to start
Electronics Forum | Wed Jun 01 11:02:57 EDT 2016 | claudea2
I have 3 used Quad 4Cs and the nozzle changer on one machine never worked. I decided to troubleshoot it this week. I repaired the changer by changing a defective optical sensor but I still get error 17 when I try a run-step nozzle 1, 2 or 3. Error 17
Electronics Forum | Fri Nov 18 16:26:17 EST 2011 | olddog
Hi again Bob, I checked the theta motor coupling and the set screws are definately tight. I noticed that the theta motor drives an snti-backlash gear (nice design) so there is no play there. It appears that the gear drives a slotted shaft which is d
Electronics Forum | Wed Sep 25 09:59:44 EDT 2013 | bobpan
Hello, This is from my old documents....hope it helps. I would first try mod code 53 = 2 first.....if the machine is a 2C. The motor was known for causing this problem after getting old. These are all resolutions for motor error 4. Step Potential P
Electronics Forum | Thu Nov 17 05:11:09 EST 2011 | bobpan
wow.....lets try some more things....... first....i think quad align error 0 has something to do with the theta number not being at 0,6000,12000,18000. I am not for sure about that but check it out by doing a function 3 on your pickups. second.....
Electronics Forum | Thu Jul 01 14:34:39 EDT 2010 | claudea2
I purchased a used QUAD 4C -136 and after a few months got the machine running 8 hr shifts. One issue I have come across is feeder drift. I kept re-aligning the feeder pickup positions but they would always change. Finally I got the time to measure
