- Joined
- Jul 8, 2008
- Messages
- 1,079
Hey guys, I just had to replace the motor for my homebuilt power hammer with a tire clutch and thought Id share what I found with yall.
My old motor gave out, so I went to replace it. there arent any places in cheyenne that sell 1 hp motors, so I went to ft collins to the Grainger store there.
I told the guy behind the counter what I was using it for, what my old motor was, and what I was after. He sold me a 1 hp, 110 volt, 12 amp, 1750 rpm motor with 2 capacitors on it, a start capacitor, and a run capacitor. I took it home about 45 miles away, and installed it, and my hammer had about 20% of the power it had with the old worn out motor. so I took it back, wondering if I could get my money back since I had already installed it and run it awhile.
the biggest issue with the motor was that it seemed to lack power, and that I could hear the run capacitor clicking in and out rapidly as I brought it under and out of a load.
When I went to return it, the guy made a phone call to his tech guys somewhere, and explained what I had found and what I tought was wrong. the tech confirmed that the motor with the run capacitor was the wrong motor for that application. that the run capacitor was the culprit. apparently that cap is an effort to save electricity under a constant load, but under a variable load was a bad idea.
then the grainger guy really shocked me when he said that they would find a motor that they had in stock that would work and swap it out. ended up with a 1hp, TEFC, 14 amp, single start capacitor, 1750rpm 110 volt motor.
here is the amazing part. the first motor cost me $350 or so out the door, the second motor was around $575, they swapped it out and didnt charge me anything more! then the guy said that if the second motor would not work for my application, not to drive back down there, but to email him, and he would have a bigger motor shipped to me at no extra charge!
Talk about above and beyond!
the new motor without the run capacitor, is running the hammer just fine, and seems to be a great motor. but I wanted to let everyone know about the run capacitor thing, and to give Grainger an "atta boy!"!
My old motor gave out, so I went to replace it. there arent any places in cheyenne that sell 1 hp motors, so I went to ft collins to the Grainger store there.
I told the guy behind the counter what I was using it for, what my old motor was, and what I was after. He sold me a 1 hp, 110 volt, 12 amp, 1750 rpm motor with 2 capacitors on it, a start capacitor, and a run capacitor. I took it home about 45 miles away, and installed it, and my hammer had about 20% of the power it had with the old worn out motor. so I took it back, wondering if I could get my money back since I had already installed it and run it awhile.
the biggest issue with the motor was that it seemed to lack power, and that I could hear the run capacitor clicking in and out rapidly as I brought it under and out of a load.
When I went to return it, the guy made a phone call to his tech guys somewhere, and explained what I had found and what I tought was wrong. the tech confirmed that the motor with the run capacitor was the wrong motor for that application. that the run capacitor was the culprit. apparently that cap is an effort to save electricity under a constant load, but under a variable load was a bad idea.
then the grainger guy really shocked me when he said that they would find a motor that they had in stock that would work and swap it out. ended up with a 1hp, TEFC, 14 amp, single start capacitor, 1750rpm 110 volt motor.
here is the amazing part. the first motor cost me $350 or so out the door, the second motor was around $575, they swapped it out and didnt charge me anything more! then the guy said that if the second motor would not work for my application, not to drive back down there, but to email him, and he would have a bigger motor shipped to me at no extra charge!
Talk about above and beyond!
the new motor without the run capacitor, is running the hammer just fine, and seems to be a great motor. but I wanted to let everyone know about the run capacitor thing, and to give Grainger an "atta boy!"!
