My saw boggs down while cutting and either causes the overheat relay to shut it down or throws the breaker at box or both. This has been getting worse and is bad now. Ripping a 4 ft black walnut board may take restarting saw 4-5 times. Took motor to repair shop and told it was fine and the blade is relatively new. What now? Suspect bearings at blade
Saws - Jet
Answers & Comments
Hi,
Does the blade still turn freely?? if not then yes... check the bearings... but if it turns easily then the bearings are okay...
Check the blade.... that wood can take the edge off rather quickly and I would try a new blade next....it may seem to be okay but still not cut well...
heatman101
Hello bill..... I suspect that the voltage at the plug you are using is not what it should be. It may be that the transformer that feeds your house or garage needs to be adjusted. Begin by calling the power company and asking them to check the voltage at your location. They do this as a free service.
Once you have the power question solved, look at the blade you are using. Black walnut is one of the hardest woods in North America. It requires a sharp blade, and a perfectly tuned saw. Make sure that the fence is exactly parellel to the blade and that the miter gauge is exactly 90 degrees to the blade. If either of these is off a wee bit it will cause that saw to work way too hard when ripping or cutting black walnut.
Although it is possible that the bearings are bad, it is uncommon. Depending on your saw type, you will either have a motor pulley to arbor pulley arrangement, or a motor arbor assembly (direct drive). If your saw contains the pulley type drive, it's necessary to check the pulley alignment.
If alignment is needed, this will require the adjustment of the motor via the mounts. The pulleys themselves should be true. The reasoning here is to avoid unnecessary stress on the motor or arbor bearings.
If the bearings in the arbor are bad due to wear, they need to be replaced. This will become evident by the clicking noise produced by bad bearings. If you hear this unusual noise, check to see if there's any play in the blade that's mounted to the arbor. There should be none whatsoever.
If replacement is needed, check your owner's manual parts list and replacement instructions. The saw shouldn't be used until these have been replaced.
An arbor assembly consists of a threaded shaft with a fixed flange, a washer and a nut. If the fixed flange isn't true, or has runout, the arbor should be replaced. Joe
Thanks for choosing Fixya!
Bill let me know how you make out. J.