July 24Jul 24 comment_379148 I have a Delta 36-640 Contractor II table saw. It currently has a Marathon 1.5 HP replacement motor on it. I just picked up a brand new 5 HP motor for $50 that I'm considering using on my table saw. RPM will be the same. Can this machine handle it? If so, should I increase the size of the belt and motor pulley width to match? Or is this asking for trouble? Thanks in advance! Report
July 24Jul 24 comment_379150 I imagine the new motor is a bit heavier than the current one. I wonder it the tilting mechanism trunnions will support the extra weight. My Bridgewood contractor's saw gets out of alignment when tilting the blade- worn trunnions- so that the "far" end of the blade is further away from the miter slot than the "close" end (blade not parallel with miter slot) Report
July 24Jul 24 comment_379155 I have a older Craftsman with a 1 HP motor and that has some heft to it. I see no advantage to using a 5hp motor, a 1.5hp should give you all the power you'll need for a table saw. Report
July 25Jul 25 comment_379165 I don't think I would do that. Like Bob said 1.5HP is plenty for a TS, and the weight of the motor might be a problem. Report
July 25Jul 25 comment_379176 Not to mention that a 5 HP. motor will have a considerable amp draw difference than what you have and will require a new electrical circuit dedicated to the saw. Just be aware that you might be opening a hole different can of worms Report
July 29Jul 29 Author comment_379364 @lew - I had not considered the weight. Thank you.@DuckSoup - The reason I've even considered it is due to past experience trying to cut a foreign species of rough-cut hardwood. Even moving at a snails pace, it just didn't want to cut. I thought that increasing the motor size might help with similar situations in the future. My next saw will be a 3 HP Grizzly or SawStop.@Rusty S - I just wired my garage and it passed the inspections. Electrical isn't an issue for me. Worst case scenario, I'd just put a plug on it for the 30A breaker/receptacle I put in. Report
July 29Jul 29 Author comment_379402 After further consideration, I've decided not to swap the motors. Torque, weight, and a few other factors have made me reconsider. Now to figure out what to do with the extra motor... 🤔 Report
July 30Jul 30 comment_379426 Wrap it in plastic to keep the dust off & tuck it away till the need arises. Report
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.