pd711 Posted March 9, 2018 Report Share Posted March 9, 2018 I have a new PM1000. Been using it sporadically for the past 2 months. Love it. But while using it today I can't raise or lower the blade. Like all of a sudden. I made a few cuts then needed to use my crosscut sled so I raised the blade, made my cross cuts then changed out to my dado stack, started to lower the blade and it got real tight real fast and I can't move it up or down. The handle won't turn. The locking handle is not tight, the worm gear is clear. The inside of the cabinet is clean. No debris in the way that I can see. I use dust collection every time I use the saw. I took out the dado set and I can't see anything that's obvious. I'm scratching my head on this one. Quote Link to comment Share on other sites More sharing options...
AceHoleInOne Posted March 9, 2018 Report Share Posted March 9, 2018 Can you fit a small mirror down the throat to see if a small amount of off-fall may be jamming something? -Ace- Quote Link to comment Share on other sites More sharing options...
wdwerker Posted March 9, 2018 Report Share Posted March 9, 2018 Completely remove the locking knob ? Maybe something got jammed ? Quote Link to comment Share on other sites More sharing options...
wtnhighlander Posted March 10, 2018 Report Share Posted March 10, 2018 Sounds like a chip wedged in the lead screw. Usually they get pushed aside as the screw turns, but I had the occasional bit with just the right taper to wedge itself in the threads. Most of the time, backing out the screw (turning it opposite) lets tge chip work out. Quote Link to comment Share on other sites More sharing options...
Popular Post Coop Posted March 10, 2018 Popular Post Report Share Posted March 10, 2018 Instructions clearly state that “If you can’t get it to go down after 4 hours, please consult a mechanic”. 1 1 4 Quote Link to comment Share on other sites More sharing options...
wdwerker Posted March 10, 2018 Report Share Posted March 10, 2018 Or do like Charlie did and call more....... 1 Quote Link to comment Share on other sites More sharing options...
pd711 Posted March 10, 2018 Author Report Share Posted March 10, 2018 14 hours ago, AceHoleInOne said: Can you fit a small mirror down the throat to see if a small amount of off-fall may be jamming something? -Ace- I can pretty much see every where and nothing is visibly jamming anything 13 hours ago, wdwerker said: Completely remove the locking knob ? Maybe something got jammed ? Tried that 10 hours ago, wtnhighlander said: Sounds like a chip wedged in the lead screw. Usually they get pushed aside as the screw turns, but I had the occasional bit with just the right taper to wedge itself in the threads. Most of the time, backing out the screw (turning it opposite) lets tge chip work out. I can't turn the handle in either direction. It's seized. I have a feeling I'm going to have to start taking it apart to find whats wrong. Really didn't want to have to do that. Quote Link to comment Share on other sites More sharing options...
Brendon_t Posted March 10, 2018 Report Share Posted March 10, 2018 55 minutes ago, pdacey08 said: I can pretty much see every where and nothing is visibly jamming anything Tried that I can't turn the handle in either direction. It's seized. I have a feeling I'm going to have to start taking it apart to find whats wrong. Really didn't want to have to do that. I hate to tell you to start cranking on that thing, but if you were able to turn the handle before which likey jammed something, I think you'll have to start by getting it backed off. If there is something stuck or preloaded with tension when you start talking stuff apart, chances are you won't be able to see the obstruction well if at all or could hurt yourself when it comes free with your hands all up in that business. I would attach a cheater bar to the lift lower wheel and VERY gently apply pressure, watch constantly for any bending, backing off of the direction you jammed it in and I'd bet you dislodge whatever you lodged Quote Link to comment Share on other sites More sharing options...
pd711 Posted March 12, 2018 Author Report Share Posted March 12, 2018 It's a bent shaft. Finally had time to really take a look at it. The shaft has a slight bend to it and its stuck inside the eccentric bushing. I loosened the nut that holds the bushing and was able to raise and lower everything. Don't know how it bent. I'll have to get a replacement shaft and bushing. Anyone know if you can get the shaft out without pulling the motor? Quote Link to comment Share on other sites More sharing options...
Tom King Posted March 12, 2018 Report Share Posted March 12, 2018 Which part? I'm thinking part 139 in the second schematic, but can't tell by the exploded view what needs to come off first to get to it. https://www.ereplacementparts.com/powermatic-pm1000-1791001k-10inch-cabinet-saw-parts-c-32549_32640_388351.html I can't think of what could have bent it, unless the adjustment was forced with the lock on, and then the eccentric bushing bent the shaft. Quote Link to comment Share on other sites More sharing options...
wdwerker Posted March 12, 2018 Report Share Posted March 12, 2018 You might want to remove the top for better access but I don't see why you couldn't make a quick cradle to carry the motors weight while you pull that shaft. I had to get into my UniSaw & replace the arbor and yoke ( long story ) . I remember zipping out a cradle on the bandsaw to support the motor. Quote Link to comment Share on other sites More sharing options...
pd711 Posted March 13, 2018 Author Report Share Posted March 13, 2018 1 hour ago, Tom King said: Which part? I'm thinking part 139 in the second schematic, but can't tell by the exploded view what needs to come off first to get to it. https://www.ereplacementparts.com/powermatic-pm1000-1791001k-10inch-cabinet-saw-parts-c-32549_32640_388351.html I can't think of what could have bent it, unless the adjustment was forced with the lock on, and then the eccentric bushing bent the shaft. Part 139 is bent inside of part 141. Or they're both bent. As soon as I loosened the nut (part 142) I could rotate everything and the motor moved up and down freely. I don't know how it could have bent either. I've only had the saw about 2 months and haven't used it that much. Quote Link to comment Share on other sites More sharing options...
wdwerker Posted March 13, 2018 Report Share Posted March 13, 2018 Warranted? Quote Link to comment Share on other sites More sharing options...
RichardA Posted March 13, 2018 Report Share Posted March 13, 2018 1 hour ago, wdwerker said: Warranted? There's your solution, if it is. Quote Link to comment Share on other sites More sharing options...
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