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Timesaver 137 troubleshooting

Keith Member


I'm trying to figure out why this sander will not operate. I just acquired it and would like to get it running. I have what seems to be everything ready as far as controls, but when I press "Start 1st Head" nothing happens. I've never worked with a sander like this, so I'm guessing I'm doing something wrong or something needs to be fixed. Attached is a pic showing everything lit up and ready, I guess.

View higher quality, full size image (1500 X 2000)

7/20/21       #2: Timesaver 137 troubleshooting ...
Bruce H

I have a Sanding Master and not aTime Saver but they are similar machines and controls. If my machine thinks the head does not have air, it won't run. If it thinks a safety has been tripped, it won't run. If the belt is too far over, it won't run. I'd guess that something like that is your issue. An interlock somewhere that isn't satisfied. The trick is to find it. A good service tech would be able to read the wiring diagram and know what is energized in which order.

7/20/21       #3: Timesaver 137 troubleshooting ...
Keith Member

Thanks Bruce! I'm going through it now to figure what its looking for. I don't have a schematic, so I'm sure its going to be like finding a needle in a hay stack.

7/20/21       #4: Timesaver 137 troubleshooting ...
Bruce H

You might call and see if they will help.

Time Saver Service

7/20/21       #5: Timesaver 137 troubleshooting ...
WM Suber

Website: http://Suber custom

Like Bruce suggested, check your belt. If it tracks off too far, it will trip the sensors. And it will not start back up. Mine has a physical switch on one side and I believe if the electronic eyes get dusty, that might be a problem. One simple thing thatís easy to overlook on mine, if one of the emergency switches gets tripped, it might not be obvious. Make sure all are in the right position. Once pressed mine stay in, you have to twist and pull them back out.

7/21/21       #6: Timesaver 137 troubleshooting ...
MDFshort Member

on mine I have to press master start then press the stop/reset then press the start.

I had this issue once after a hour of panic and trouble shooting I realized that I had the door open and the magnetic switch on the door was the reason it wouldn't start.

7/21/21       #7: Timesaver 137 troubleshooting ...
Keith Member

Thanks guys.
Still working on it. Still trying to get a schematic. Jumped out the safety bumpers, everything else checks out ok, still missing something.

7/22/21       #8: Timesaver 137 troubleshooting ...

Make sure all the estops are reset no doors open , belt tracking sensors, and air is hookedup and on prolly somthing simple.

7/22/21       #9: Timesaver 137 troubleshooting ...
Keith Member

Thanks everyone. Got the machine back on track. Got a schematic from Timesavers that helped a lot. Had an issue with how an e-stop "bumper" was wired, but now its operating as it should. Only thing now is that I only have a 30 amp breaker/slot available for this machine. Didn't realize the machine pulls 107 amps, so I guess I got to get a bigger breaker for it. I can turn everything on except the 1st head, which trips the breaker. Everything resets as it should, so all is good.

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