Hi. I bought a Sealey 750W power drill, and ever since the first day I had it problems began to arise. First, it does not always start smoothly, it starts with a jerk, which can be quite annoying when trying to keep the drill steady on top of a small punch, but the power drill shakes vigorously when the trigger is only slightly touched. For other times to happen nothing at all when I pull the trigger, even several times in a row. Then again, it starts with a tough jerk, making it unable to keep steady.
I have changed the capacitor, the yellow thing connected to the trigger, I have even placed both capacitors in parallel, I have changed the brushes, and even used a different pair of brushes besides the spare ones that came with the drill. I have changed the trigger, in the end, but the very same problem, no improvement at all. I just don't see what else can be replaced, or enhanced.
I have let it run at full speed, to the right, and to the left, thinking that maybe the brushes need to wear out a bit, to achieve full contact onto the commutator. Nothing improved. The same jerking, same nothing happening sometimes, even when pulling the trigger all the way back, for that in a second to start at full speed.
I actually took it apart entirely, and besides this problem, found one of the wires of the stator being outside of the isolation, and touching the metallic corner of the body of the stator itseld, which would have ended up in a short circuit, if not noticed in time.
I would just pretend I did not have 36 pounds, and throw it away, but at full speed it seems very powerful, and besides the intermittent start problem, it seems to work pretty well, no wobbling, no power loss when in use, now also having fixed the stator wire isolation problem, I feel that I need to make it work out of pure curiosity if nothing else for.
Could I find a way to fix the starting issue? Thanks!
I have changed the capacitor, the yellow thing connected to the trigger, I have even placed both capacitors in parallel, I have changed the brushes, and even used a different pair of brushes besides the spare ones that came with the drill. I have changed the trigger, in the end, but the very same problem, no improvement at all. I just don't see what else can be replaced, or enhanced.
I have let it run at full speed, to the right, and to the left, thinking that maybe the brushes need to wear out a bit, to achieve full contact onto the commutator. Nothing improved. The same jerking, same nothing happening sometimes, even when pulling the trigger all the way back, for that in a second to start at full speed.
I actually took it apart entirely, and besides this problem, found one of the wires of the stator being outside of the isolation, and touching the metallic corner of the body of the stator itseld, which would have ended up in a short circuit, if not noticed in time.
I would just pretend I did not have 36 pounds, and throw it away, but at full speed it seems very powerful, and besides the intermittent start problem, it seems to work pretty well, no wobbling, no power loss when in use, now also having fixed the stator wire isolation problem, I feel that I need to make it work out of pure curiosity if nothing else for.
Could I find a way to fix the starting issue? Thanks!
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