A few Greenie questions...
Posted: Tue Jun 29, 2010 4:17 pm
Hi!
Well, the "new" 1956 Greenie is now fully painted and polished (pics soon). The replacement motor -- 1 1/8 HP -- arrived yesterday (an Ebay purchase) in excellent condition. Bright and shiny inside -- didn't even need to blow it out. The only downside is that the power lead coming out of the motor has somewhat hardened and brittle insulation. Opened the motor to replace it, but found that instead of terminals it runs right into the bundle where the windings connect. Hm... Didn't want to mess with that last night. So, I closed it back up and carefully taped all the insulation (as the actual copper was in good shape). Works fine for the time being.
One thing I noticed when reassembling the headstock (without any directions): I put the speed control back together so that the pulleys are in logical positions at the slow and fast extremes. I noticed when doing so that it's possible to move the speed dial past the fastest setting, and run the quadrant thingy right into the upper pulley. I looked around for some limiting device, but found none. After mounting the motor and testing, all works as it should, but it's still possible to pass the fast setting and do some damage if one was silly enough to do so. I haven't put a tach on to check speeds yet (I have one) but will do that tonight.
The detent spring behind the speed indicator dial is back where I found it, and its purpose seems to be to provide and indication that one is dialing into the highest speeds. I couldn't see anything in the speed controller mechanism (front, operator's side) that stopped the controller at the high mark.
I also figured that maybe there as some sort of something on the upper pulley shaft that would prevent the pulley from opening beyond the safe point, but found nothing missing there either.
I can't believe that there isn't some sort of idiot proof limiter. What am I missing?
Well, the "new" 1956 Greenie is now fully painted and polished (pics soon). The replacement motor -- 1 1/8 HP -- arrived yesterday (an Ebay purchase) in excellent condition. Bright and shiny inside -- didn't even need to blow it out. The only downside is that the power lead coming out of the motor has somewhat hardened and brittle insulation. Opened the motor to replace it, but found that instead of terminals it runs right into the bundle where the windings connect. Hm... Didn't want to mess with that last night. So, I closed it back up and carefully taped all the insulation (as the actual copper was in good shape). Works fine for the time being.
One thing I noticed when reassembling the headstock (without any directions): I put the speed control back together so that the pulleys are in logical positions at the slow and fast extremes. I noticed when doing so that it's possible to move the speed dial past the fastest setting, and run the quadrant thingy right into the upper pulley. I looked around for some limiting device, but found none. After mounting the motor and testing, all works as it should, but it's still possible to pass the fast setting and do some damage if one was silly enough to do so. I haven't put a tach on to check speeds yet (I have one) but will do that tonight.
The detent spring behind the speed indicator dial is back where I found it, and its purpose seems to be to provide and indication that one is dialing into the highest speeds. I couldn't see anything in the speed controller mechanism (front, operator's side) that stopped the controller at the high mark.
I also figured that maybe there as some sort of something on the upper pulley shaft that would prevent the pulley from opening beyond the safe point, but found nothing missing there either.
I can't believe that there isn't some sort of idiot proof limiter. What am I missing?