TPUBON Posted March 22, 2015 Share Posted March 22, 2015 Today I started my saw and noticed that it was running backwards. Looking at the blade, it should run clockwise. Cutting on the downward rotation. I used this saw and another before with no problem. Same house. The fans in the house all rotate in the proper direction. I am baffled. Any ideas? Link to comment Share on other sites More sharing options...
Popular Post 2fishin2 Posted March 22, 2015 Popular Post Share Posted March 22, 2015 Your blade is on backwards lol 5 Link to comment Share on other sites More sharing options...
NickJ Posted March 22, 2015 Share Posted March 22, 2015 Your cross ram inverter on your power pole connection is either loose or has been coroded. Has there been a lot of wind or loud noises in your area? 1 Link to comment Share on other sites More sharing options...
2fishin2 Posted March 22, 2015 Share Posted March 22, 2015 Im serious its on backwards 1 Link to comment Share on other sites More sharing options...
cooked Posted March 22, 2015 Share Posted March 22, 2015 Evil spirits. 1 Link to comment Share on other sites More sharing options...
T_Dog Posted March 22, 2015 Share Posted March 22, 2015 Your cross ram inverter on your power pole connection is either loose or has been coroded. Has there been a lot of wind or loud noises in your area? I've heard the recent solar flares have affected a lot of circular saw flux capacitors causing them to run backwards! Seriously, the OP does have his blade on backwards. It should have the rotation and teeth toward the stock being cut, which means that the teeth are coming up on forward part of the saw. 2 Link to comment Share on other sites More sharing options...
bankruatsteve Posted March 22, 2015 Share Posted March 22, 2015 ^Yah. In any case, this is not a reverse polarity electric problem - actually, no electric problem period. Link to comment Share on other sites More sharing options...
NickJ Posted March 22, 2015 Share Posted March 22, 2015 I beg to differ....crossed ram influx is one of the biggest problems things like power tools and even aqauriums face here and its further complicated by an inferior ground. That only amplifies the issue. Link to comment Share on other sites More sharing options...
yankee99 Posted March 22, 2015 Share Posted March 22, 2015 plug a fan in and see if it runs backwards otherwise you need to reverse your blade Link to comment Share on other sites More sharing options...
Popular Post phoenixdoglover Posted March 22, 2015 Popular Post Share Posted March 22, 2015 There are any number of explanations: - upside-down circuit breaker - aurora borealis - you have a saw manufactured for the Southern Hemisphere This may help: http://en.wikipedia.org/wiki/Right-hand_rule 3 Link to comment Share on other sites More sharing options...
Popular Post chickenslegs Posted March 22, 2015 Popular Post Share Posted March 22, 2015 (edited) Looking at the blade, it should run clockwise. Cutting on the downward rotation. A hand held circular saw should not cut downwards - it would be very dangerous as the action would tend to force the saw to bounce away from the timber/metal being cut (and towards the user). Circular saws cut upwards, which forces the material being cut towards the base of the saw, holding the two things together - much safer. Most circular saws have the motor on the left and the blade on the right. If yours has the motor on the right (unlikely) then the direction indicator on the blade is wrong for your machine. Edited March 22, 2015 by chickenslegs 5 Link to comment Share on other sites More sharing options...
leo202 Posted March 22, 2015 Share Posted March 22, 2015 Have to agree with other posters here sounds like the blade is on the wrong way round. You are talking about a hand held circular saw? Link to comment Share on other sites More sharing options...
chickenslegs Posted March 22, 2015 Share Posted March 22, 2015 Have to agree with other posters here sounds like the blade is on the wrong way round. You are talking about a hand held circular saw? According to his original post the blade is cutting in an upward direction, which is correct. So the blade is not the wrong way around. Maybe the markings on the blade are wrong - for his machine. I just hope he doesn't turn the blade around and start cutting downwards. The first time the blade hits a hard spot that saw will jump out of his hand. It will not be pretty. 1 Link to comment Share on other sites More sharing options...
leo202 Posted March 22, 2015 Share Posted March 22, 2015 I've just read the op again and he says its cutting clockwise in a downward motion. Link to comment Share on other sites More sharing options...
rsokolowski Posted March 22, 2015 Share Posted March 22, 2015 Blade is on backwards. Link to comment Share on other sites More sharing options...
leo202 Posted March 22, 2015 Share Posted March 22, 2015 Sorry I've had a few. Op for safety's sake post a pick of your saw. 1 Link to comment Share on other sites More sharing options...
crazygreg44 Posted March 22, 2015 Share Posted March 22, 2015 (edited) If he turns the blade around, nothing much will happen, as then he will cut upward with the teeth facing away from the board to be cut. Chickenlegs is right. If the OP has a circular saw that has the motor to the left side of the blade, a backward ( i.e. upward spin = counterclockwise! ) of the blade is correct. And yes, there are handheld circular saws that have the motor on the right and the blade on the left - which will turn clockwise in an upward cut mode. And yes, as chickelegs said, blades bought in Thailand are for motor left/blade right machines, the indicator will probably show a wrong turn when used in a motor right/ blade left type of circular saw. VERY IMPORTANT . .if the motion is against the indicator turn, then you will be cutting with the backside of the teeth in the material first. You should then REFRAIN from using the machine and seek help by the shop. The OP should just fix a test board properly and start a short round of cutting & check the result. ...and good luck, don't step onto the cable while moving . . . . . Edited March 22, 2015 by crazygreg44 Link to comment Share on other sites More sharing options...
manarak Posted March 22, 2015 Share Posted March 22, 2015 hilarious thread! Link to comment Share on other sites More sharing options...
leo202 Posted March 22, 2015 Share Posted March 22, 2015 Yea it'll be very funny if it flys up into his face. Link to comment Share on other sites More sharing options...
sipi Posted March 22, 2015 Share Posted March 22, 2015 To my knowledge a single phase motor cannot run backwards unless it has been modified or tempered with. It is physically impossible. Link to comment Share on other sites More sharing options...
sipi Posted March 22, 2015 Share Posted March 22, 2015 How does turning the blade around change the motor direction? The only configuration is... 1 Link to comment Share on other sites More sharing options...
sipi Posted March 22, 2015 Share Posted March 22, 2015 Link to comment Share on other sites More sharing options...
NeverSure Posted March 22, 2015 Share Posted March 22, 2015 How does turning the blade around change the motor direction? The only configuration is... 670px-Change-a-Circular-Saw-Blade-Step-7.jpg It doesn't. It changes the direction the teeth are pointed. He says it's turning clockwise, but looking from which side, lol. That picture shows which way the blade is mounted. Link to comment Share on other sites More sharing options...
Crossy Posted March 22, 2015 Share Posted March 22, 2015 Yup ^^^. Single phase electric motors don't suddenly decide to run backwards, it would need someone with electrical knowledge to muck about with the internals. Assuming a hand held saw, you've got the blade on backwards. 1 Link to comment Share on other sites More sharing options...
evadgib Posted March 23, 2015 Share Posted March 23, 2015 You forgot you're left handed Link to comment Share on other sites More sharing options...
Aussieroaming Posted March 23, 2015 Share Posted March 23, 2015 You bought an electric saw in the Southern Hemisphere and you are using it in the northern hemisphere.. Link to comment Share on other sites More sharing options...
TPI Posted March 24, 2015 Share Posted March 24, 2015 Have to agree with other posters here sounds like the blade is on the wrong way round. You are talking about a hand held circular saw? According to his original post the blade is cutting in an upward direction, which is correct. So the blade is not the wrong way around. Maybe the markings on the blade are wrong - for his machine. I just hope he doesn't turn the blade around and start cutting downwards. The first time the blade hits a hard spot that saw will jump out of his hand. It will not be pretty. Its got to cut up, just cut some ply and you'll see why! Mr Chickenlegs has got it right!! Link to comment Share on other sites More sharing options...
Daffy D Posted March 24, 2015 Share Posted March 24, 2015 Is this the same OP who posted some time ago that his electric drill was running backwards Maybe the beginning of something................................ Link to comment Share on other sites More sharing options...
sipi Posted March 24, 2015 Share Posted March 24, 2015 Is this the same OP who posted some time ago that his electric drill was running backwards Maybe the beginning of something................................ Yes. The "running backwards circular saw" thread is as old as the hills on any handyman forum. It is a well worn joke. It physically cannot happen. Link to comment Share on other sites More sharing options...
jethro69 Posted March 24, 2015 Share Posted March 24, 2015 OP says it should run clockwise, well it depends from where you look, I would say it should run ccw. OP says it run OK before, I see just two possibilities. a) a new blade is put the wrong way in, are they not designed id...proof? capacitor is gone, which could lead a single-phased motor starting in the opposite direction, however it's more likely that (out of 10 times, 8 times) the motor wouldn't start at all, the other times it would just choose a random movement. (ccw or cw), assumed same load in both directions. Link to comment Share on other sites More sharing options...
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