I have a Delta 43-379 shaper, ser no 98C93028, 230v, 11.8 amps. I used it a month ago for doors user typical (and new) cope and pattern cutters on poplar and ran everything at full 3/8 depth no problem. Just ran some doors and suddenly using soft maple the machine was bogging down on cope cuts, and when I used my baby power feeder at lowest 10fpm setting, the machine actually stopped! So I had to do two cuts. Some parts I had to do manually and when I went slow it would cut fine, but I could tell that the motor would stop if I went any faster.
Impossible to get motor specs as motor plate is visible but impossible to read. Thanks, Delta.
Looked inside magnetic on/off switch and it is factory new; looked inside the box bolted to the motor with the reversing switch and that is also factory new; capacitors look new (no leaking) but they could be bad.
Machine has very little use. Did full cuts on cherry several years ago with no trouble.
Motor starts up fine, reversing works. Sounds ok.
Please help! No amount of googling yields anything but parts lists for this machine, but without any motor details.
Thanks.
Replies
Test it
If you don't have a volt/ohm/amp meter buy one. It is worth the bit extra to get one that has the microfarad scale to test capacitors.
Then:
1.) Check the voltage to see if it is low.
2.) Check the amperage, there are some inexpensive line splitters you can buy that seperate the wires so you can test at the plug in. Extech makes a good line splitter, that is inexpensive you can find it on Amazon.
3.) Check the run capacitor. If your test meter has the capacitor tester it is easy. If not, there are good instructions on YouTube. I will warn you on being careful about discarging the capacitor before and after you test it. The best way to discharge one is with a neon voltage tester. Amprobe makes one you can fnd on Amazon for about $6.
Are you sure it's not the spindle bearings? At the high speed a shaper shaft runs at, bad bearings consume a lot of power, and there isn't much left to do actual work. If it has a cartridge spindle, just remove it. Otherwise loosen the belt and spin it by hand. Also, bad bearings run hot. Usually it is spindle bearings that go in shapers, not motor bearings.
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