The Dewalt is a good machine. It is NOT meant however for production level use with out regular maintenance. It has some design deficiencies however overall it is a very good mid level machine. You want a production machine you need to spend upwards of $2,000 and it will be a big heavy ugly monster. One built to be used hours and hours a day.
Let me put this whole thing in perspective for everyone.
Would you purchase a mid level car drive it non stop in an application of say, being a taxi or an Uber car, and do nothing to it, and I mean nothing; no lubrication, no air filter changes, no tire or brake changes nothing at all. How long would that car last before it had problems? Would those problems be indicative of the model of the car or the care and ownership of it?
Simple things such as keeping your saw clean and untensioned after you are done go a long way in keeping your saw working like it should. I have had a Dewalt now going on 8 years and I wore out the motor, had it replaced once. I have taken my saw apart and greased all the bearings, even though the manual says that they have been designed to work without being serviced.
This in my opinion is what is wrong.
Bearings need maintenance, ask any mechanic.
I keep the joints clean and clear of sawdust. I keep the saw untensioned when I am not using it, It says to in the manual if you read it.
If you are going to use the saw for production use you should have things like extra blade holders both upper and lower so that when you strip out one you can easily replace it with minimal down time. I carry 4 pair and have had to replace both the upper and lower once already.
You should grease your bearings or have that done for you if you do not have the mechanical aptitude for that kind of thing. It does not take long and can save hours and even weeks of downtime later on down the line.
The old saying you get what you pay for is quite apt here. The Dewalt is a quality designed machine. One designed for mid level use. It can be pressed into production used however it needs some TLC ( Tender Lovin Care ) from time to time. As with any machine there can be a lemon from time to time but that is part of the understanding of purchasing one.
​One last point. The Dewalt is a great hobbyist machine it is the entry into the world of what can be, where imagination and hard work rule. Like the car that I have described earlier it can be used in a heavy use situation but it will need more frequent attention in order to keep it working correctly.
These of course are my own personal thoughts on the subject and that and $1.85 will get you a cup of coffee. I have been a mechanic on both light and heavy aircraft since 1978 so I have a fair understand how moving machinery works and should be cared for. Not everyone however has the ability or the skills or the tools to do the maintenance of their machine. However keeping it clean and un tensioned when not using it can go a long way in prolonging its life.
DW