Craigslist Find Surface Grinder - Now The Fun Starts

JimDawson said:
I've never seen a grinder throw sparks to the right. Every surface grinder I have ever seen turns clockwise as you are looking at the wheel. This is new.
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Ya know, since that grinder has obviously had the motor replaced, maybe the replacement motor turns the wrong way and either couldn't be reversed or the person who replaced it didn't know how to switch the wires. This could be a problem if the arbor screw decides to loosen itself due to incorrect rotation...

Stu
 
That grinder is made to turn counter clockwise when viewed from the operator position. I know this is different than most surface grinders.
 
I once owned the exact same SG, not a bad little machine, mine had plain spindle bearings, keep the oil cups full and let it run 10-15 minutes before using it.

As mentioned above the spindle does rotate in the opposite direction of any other grinder that I have ever used in any shop where I have worked.
 
gr8legs said:
Ya know, since that grinder has obviously had the motor replaced, maybe the replacement motor turns the wrong way and either couldn't be reversed or the person who replaced it didn't know how to switch the wires. This could be a problem if the arbor screw decides to loosen itself due to incorrect rotation...

Stu
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If yu look at te pictures ,The wheel gard has an arrow pointing counter clockwise.
 
kd4gij said:
If yu look at te pictures ,The wheel gard has an arrow pointing counter clockwise.
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<blush> Yep, you're right - counter-clockwise rotation. Ignore my replacement motor comments. Sad thing is, I have that grinder in the shop and was too lazy to go look at it before opening my yap.

Oh well, it could have been verse.

Stu
 
For a LH spindle, your arbor and arbor nut threads have to be RH threads instead of the standard LH. Pretty interesting little grinder!

I've seen one in person, and know a guy with one. They are much sturdier then they look.
 
Recon I and gr8legs are gonna learn more about these machines as we clean and work on em.

Thanks Andre, will be checking the spindle size when I pull the wheel off.

Hadn't thought about spindle direction but as some of you noted, I too haven't seen a grinder spindle turn this direction. My grinding experience is limited to just a couple of shops and less than 40 hr's on them.
The table moves a lot further than is needed to clear the wheel from over the chuck.
Fellow I bought it from had used it to sharpen planer blades and had the stops ( they look factory stock ) set all the way out with a 15 3/8" spread.
Dont know about pulling the chuck without reason as I don't want to have to grind it true again. Perhaps with care a regrind wouldn't be needed.
I was cautioned not to grind it if it could be helped and suspect it's been done more than a few times but those T-slots could be real handy for mounting tooling or jigs.
 
I also have that grinder and love mine. Neat tip. on your cake pan that you mounted. You can take off the mounting brackets and use a welding magnet (rect. one at harbor freight) to hold the cake pan. Works great and is easily removed.
 
Nice SG- looking forward to seeing it cleaned up!

DanGraves said:
. Neat tip. on your cake pan that you mounted. You can take off the mounting brackets and use a welding magnet (rect. one at harbor freight) to hold the cake pan. Works great and is easily removed.
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The welder's magnet is a good idea- we took it one step further and placed a few very strong neomydium (sp?) magnets in ziplocs on the catch pan- when the magnet loads up with grinding bits just turn the baggie inside out- slide off the magnet and toss the baggie.

Seems weird to some- but I have a few "baggie magnets" hanging around my grinders (KMG, old Rockwell disc and a 1x42 die grinder setup) and am always amazed what they pickup. If you have a dust collection setup- put a baggie on the filter housing INSIDE and see if you get fine particles...
 
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