snuffy
Cave Dweller
Member since May 2009
Posts: 4,319
|
Post by snuffy on Nov 29, 2009 20:37:02 GMT -5
I changed the oil in my saw today and cut 4 or 5 slabs. Put a chunk of obsidian on and cut it. When I opened the hood there seemed to be an unusually heavy hazy mist. It had made the cut and the brass chain had turned it off. This is a HP 16 saw.Then,it wouldnt turn on again. When I try to push the reset button on the motor it wont push in hardly at all. then when I try to turn it on again, the motor just hums sorta. Any magical tap with a hammer? Any help appreciated,motor is probably 30-40 years old. snuffy
|
|
|
Post by deb193redux on Nov 29, 2009 21:23:47 GMT -5
sounds like the bearings siezed. Odd that it happened after the chain turned it off as usual.
Can you turn the shaft with a wrench?
|
|
snuffy
Cave Dweller
Member since May 2009
Posts: 4,319
|
Post by snuffy on Nov 29, 2009 21:37:37 GMT -5
I took the belt guard off and turned the belts by hand and everything seems to turn fine,nothing froze up.
snuffy
|
|
|
Post by deb193redux on Nov 29, 2009 21:40:39 GMT -5
Humm. If the motor shaft turns, I wonder if the problem is starting. Is this a capacitor start motor?
|
|
snuffy
Cave Dweller
Member since May 2009
Posts: 4,319
|
Post by snuffy on Nov 29, 2009 22:13:09 GMT -5
Yes, capacitor .What seems odd to me is the reset button is not pushing in like other reset buttons I'm familiar with.
snuffy
|
|
|
Post by catmandewe on Nov 29, 2009 22:28:59 GMT -5
Take it in and get it rebuilt, sometimes that is much cheaper, sometimes not, depends on what is wrong with it.
Tony
|
|
drjo
fully equipped rock polisher
Honduran Opal & DIY Nut
Member since May 2008
Posts: 1,581
|
Post by drjo on Nov 30, 2009 8:42:55 GMT -5
If your fast enough, turn it on and spin it by hand to get it started, if that works it's the start windings or capacitor, you should be able to do the capacitor. If you don't feel comfortable doing any of this (chicken (just kidding)) take catmandewe advise and have it rebuild ($50-$100 hear). Good liuck & keep us posted, Dr Joe .
|
|
snuffy
Cave Dweller
Member since May 2009
Posts: 4,319
|
Post by snuffy on Nov 30, 2009 18:19:08 GMT -5
drjo, I turned the belts by hand and the motor started running. But the autofeed no longer worked, I said what the hell else, now.Felt like a dumbass when I realized I had started them backwards,easier to get a good grab on the belt that way. Anyway thanks a bunch,getting it narrowed down. snuffy
|
|
|
Post by Woodyrock on Dec 1, 2009 2:22:53 GMT -5
I started a band saw for over a year when the capacitor went out by hitting the start button, and giving the drive belt a pull. When I finally pulled the motor out to get it fixed, I discovered that a wire had come loose. Yep, I felt like a dumbass on that one. Tightened the nut on the wire, and the motor started just fine. BTW, replacing a capacitor is pretty easy. Just take the old one in to an electrical outfit, and get a same one replacement.
|
|
drjo
fully equipped rock polisher
Honduran Opal & DIY Nut
Member since May 2008
Posts: 1,581
|
Post by drjo on Dec 1, 2009 7:29:34 GMT -5
I started a band saw for over a year when the capacitor went out by hitting the start button, and giving the drive belt a pull. When I finally pulled the motor out to get it fixed, I discovered that a wire had come loose. Yep, I felt like a dumbass on that one. Tightened the nut on the wire, and the motor started just fine. BTW, replacing a capacitor is pretty easy. Just take the old one in to an electrical outfit, and get a same one replacement. And mark where the connections went too!
|
|
|
Post by johnjsgems on Dec 1, 2009 10:23:01 GMT -5
If the motor starts when spinning backwards it is usually a bad start winding. This was a common non-technical trouble shooting technique in the A/C trade. Remove the motor and there will be a cover over the capacitor (two screws). Start capacitors will usually look bad (top popped, oil leaking) but not always. If it is bad it is easy to replace. If not, go the motor repair shop route to see if economically feasible to repair. If 30-40 years old it may be time to retire it. Herein CA it is too expensive to have smaller motors rewound.
|
|
snuffy
Cave Dweller
Member since May 2009
Posts: 4,319
|
Post by snuffy on Dec 1, 2009 18:39:33 GMT -5
Thanks everyone for the help. I went to the motor repair shop,the capacitor was bad, $4.91 later she's cuttin' like a charm. ;D
snuffy
|
|
|
Post by morerockspleaz on Dec 1, 2009 21:04:03 GMT -5
Glad to hear that you got your saw fixed. morerockspleaz
|
|