let's see your craftsman block grinders
- Thread starter emeraldcoupe
- Start date
Or a single thin coat of good ol' BLO.
Thank you for the suggestion. I was thinking BLO but I may try the Ballistol too. Thank you both! I've replaced bearings but have never done a full restoration, so just want to make sure I'm doing a good job on everything.
zanexx
Well-known member
Im starting a restore on an old mailbox type block 397.19521 and am gonna need some help from you guys. Ive been searching for a manual and have looked all the normal spots but have come up empty, thats not the reason for this post tho. I just wanted to throw this out there first. I missed out on the deal of the century. It was out of my normal search area so I didn't get to it quick enough but I would have driven the distance to pick it up. A 1HP block for ...........
$35!!!!! It was in Indy, hope whoever got it takes care of it, or sells it to me in the future.
Im pretty sick about missing out on it. But I just bought a 1/2 to restore and purchased a 3/4 that I haven't picked up yet, so I've got my hands full.
$35!!!!! It was in Indy, hope whoever got it takes care of it, or sells it to me in the future.
Im pretty sick about missing out on it. But I just bought a 1/2 to restore and purchased a 3/4 that I haven't picked up yet, so I've got my hands full.
zanexx
Well-known member
Here's my 397.19521 that I am currently breaking down to the bare bones, and I have a few questions I want to throw out there for you block heads. I'm looking at the capacitor and it looks new so its definitely been replaced, so I am wondering if its the correct one for this model. It has a Packard PMJ233, Model No. CD60 in it, 233-280UF. What say u? and Im looking at getting a new label made up but have to dig thru these posts to see what others have done. I've read thru 200-300 of these so theres still a lotta posts I havent seen.
And the date on the label, Im assuming the K is for November, K62 ??
And the date on the label, Im assuming the K is for November, K62 ??
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torqueman2002
Well-known member
I know you said you didn't post looking for a manual for your 397.19521 Block; but I checked my owners' manuals and list of Blocks I've worked on/owned and didn't get a 'hit' for that model.
Good luck on your restore and post up some pictures. We/I love pictures!
Good luck on your restore and post up some pictures. We/I love pictures!
zanexx
Well-known member
yeah it looks similar to the 115.7575 that Michael P did, he's got it posted on here and on his blog. His had the centrifugal switch in it tho whereas mine has a start relay and start capacitor . I did find someone who has restored the 19521 over on OWWM and am trying to contact him about it. BGPAtlas - Bryan, did a real nice job with his.
Any idea on the capacitor being correct?
Im also gonna be looking for that ON/OFF plate for the switch, I have a bunch laying around but none that are the same as the original rectangular one. Ive got some pics of the breakdown but was waiting til I get some paint done to post the before and after shots. Got new bearings ordered and have gotta either clean up the glass or buy new, havent decided yet, guess it depends on if it cleans up well or not.
thanks in advance guys.
Any idea on the capacitor being correct?
Im also gonna be looking for that ON/OFF plate for the switch, I have a bunch laying around but none that are the same as the original rectangular one. Ive got some pics of the breakdown but was waiting til I get some paint done to post the before and after shots. Got new bearings ordered and have gotta either clean up the glass or buy new, havent decided yet, guess it depends on if it cleans up well or not.
thanks in advance guys.
DaveT
Well-known member
Zanexx: That is a beautiful bench grinder. Would this be considered a pre-block? I really like the tool rests on the horizontal rods like yours. Nice find, looking forward to seeing the restoration.
I was wondering this too. Based on weight, is it cast iron (my guess) or cast aluminum?
Either way, once spruced up, it will probably outlast us all.
zanexx
Well-known member
yeah its a "pre"block, mailbox style. personally, I like the looks of them way more than I do the actual "block" grinders. These have that streamlined American look from the 50's and 60's when all things were made of OH & PA steel and they had beautiful curves and lines to them. and its all cast iron, thing weighs prob close to 100#.
you should have seen the mess I cleaned out of this thing, it had mud daubers and spiders and all kinda creepy nasty stuff in it. And the bottom of the wheel housing had so much grinding debris built up that had "rusted" or compacted that I wasn't sure if it was part of the actual housing. I will post some pics. What sold me on this particular grinder tho was that it had both eye sheilds with glass intact, the original base with quench tray and both tool rests, both outside wheel covers with no cracks anywhere, AND the complelte lighting and shade assembly. Thats a hard find around here, and probably anywhere else. Oh AND iits 1/2HP with 7" wheels, which isn't 8", but I like the 7" wheels. before I bought it, we plugged it up, it fired right up and the light even worked.....SOLD check out the mess in this thing
you should have seen the mess I cleaned out of this thing, it had mud daubers and spiders and all kinda creepy nasty stuff in it. And the bottom of the wheel housing had so much grinding debris built up that had "rusted" or compacted that I wasn't sure if it was part of the actual housing. I will post some pics. What sold me on this particular grinder tho was that it had both eye sheilds with glass intact, the original base with quench tray and both tool rests, both outside wheel covers with no cracks anywhere, AND the complelte lighting and shade assembly. Thats a hard find around here, and probably anywhere else. Oh AND iits 1/2HP with 7" wheels, which isn't 8", but I like the 7" wheels. before I bought it, we plugged it up, it fired right up and the light even worked.....SOLD check out the mess in this thing
harley jim
Well-known member
Old Radar
Well-known member
Yep, they start out nasty but clean up very nicely! If you decide you need a new label, PM mattblast--he's on the verge of being able to print on metal to duplicate our plates--I need one, too!
lafester
Well-known member
That is much better then the 1hp. Besides, it was missing the base...yeah its a "pre"block, mailbox style. personally, I like the looks of them way more than I do the actual "block" grinders. These have that streamlined American look from the 50's and 60's when all things were made of OH & PA steel and they had beautiful curves and lines to them. and its all cast iron, thing weighs prob close to 100#.
you should have seen the mess I cleaned out of this thing, it had mud daubers and spiders and all kinda creepy nasty stuff in it. And the bottom of the wheel housing had so much grinding debris built up that had "rusted" or compacted that I wasn't sure if it was part of the actual housing. I will post some pics. What sold me on this particular grinder tho was that it had both eye sheilds with glass intact, the original base with quench tray and both tool rests, both outside wheel covers with no cracks anywhere, AND the complelte lighting and shade assembly. Thats a hard find around here, and probably anywhere else. Oh AND iits 1/2HP with 7" wheels, which isn't 8", but I like the 7" wheels. before I bought it, we plugged it up, it fired right up and the light even worked.....SOLD check out the mess in this thing
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So looking at the windings on the stator(??), everything looks to be in excellent condition. No dirt, dust, debris. The coating looks solid too. Should I put on another coat to protect the winding or am I fine to leave alone?
Torque, thanks for the PM!
Torque, thanks for the PM!
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DaveT
Well-known member
yeah its a "pre"block, mailbox style. personally, I like the looks of them way more than I do the actual "block" grinders. These have that streamlined American look from the 50's and 60's when all things were made of OH & PA steel and they had beautiful curves and lines to them. and its all cast iron, thing weighs prob close to 100#.
you should have seen the mess I cleaned out of this thing, it had mud daubers and spiders and all kinda creepy nasty stuff in it. And the bottom of the wheel housing had so much grinding debris built up that had "rusted" or compacted that I wasn't sure if it was part of the actual housing. I will post some pics. What sold me on this particular grinder tho was that it had both eye sheilds with glass intact, the original base with quench tray and both tool rests, both outside wheel covers with no cracks anywhere, AND the complelte lighting and shade assembly. Thats a hard find around here, and probably anywhere else. Oh AND iits 1/2HP with 7" wheels, which isn't 8", but I like the 7" wheels. before I bought it, we plugged it up, it fired right up and the light even worked.....SOLD check out the mess in this thing
Zanexx: I agree I like the pre-block style best also. That was a great find for sure. I’m still upset over missing out on one about 6 months ago. I drove to the guys house to pick it up and he said sorry I just sold it to another guy a few minutes ago
torqueman2002
Well-known member
You are welcome.
Those stator windings, start-up (thin darker) and run (thicker), look good to me.
As you probably know, the start-up windings are activated by the relay/centrifugal switch from power-up through about 75% run speed, when the relay/CS opens the circuit, so the thin wires do not over load and burn open (let out the smoke).
You are welcome.
Those stator windings, start-up (thin darker) and run (thicker), look good to me.
As you probably know, the start-up windings are activated by the relay/centrifugal switch from power-up through about 75% run speed, when the relay/CS opens the circuit, so the thin wires do not over load and burn open (let out the smoke).
Thanks, Torque! I was aware of the relay/centrifugal, but always good to be reminded. Thanks again.
I'm not positive but I think that I ordered these rubber feet/bushing on a recommendation from this thread. They seem to work really well, but I can't remember to a certainty where I ordered them. Does anyone recognize these? Maybe McMaster Carr.
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I picked mine up at grainger. Trying to find the part number but can’t find the order.
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torqueman2002
Well-known member
Rubber Grommet Kit, For Use With Motor Mounting Brackets, Package Quantity 6
https://www.grainger.com/product/DAYTON-Rubber-Grommet-Kit-2MEV3?internalSearchTerm=Rubber%20Grommet%20Kit,For%20Use%20With%20Motor%20Mounting%20Brackets,Package%20Quantity%206&suggestConfigId=8
$8.35/pk + shipping
Outside Dia. (In.) 11/16 and 7/8
Inside Dia. (In.) 1/4
Height (In.) 1/2
Zoro, also has them.
Dayton #2MEV3
Zoro #: G2705507
Mfr #: 2MEV3
Outside Dia. (In.) 11/16 and 7/8
Inside Dia. (In.) 1/4
Height (In.) 1/2
$8.95
https://www.zoro.com/dayton-rubber-grommet-kit-larger-od-78-in-pk6-2mev3/i/G2705507/?q=G2705507
Also, use: "Dayton #2MEV3" on Amazon - there are a number of places that list them - at a lot of different prices.
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Thank you again, Torque. I just ordered several from Zoro. It's amazing how addictive these little machines are. Due to family obligations my shop time is somewhat limited to weekends. All I have been thinking about the last several nights is to get back out and finish my block restoration!
torqueman2002
Well-known member
Most of us Block-heads, me for sure, can't stop at one, or two, ...
Kaervak
Well-known member
Anyone in Eastern PA after a nice block?
1/2 HP, complete and with base for $40. I think the base is the actual Craftsman one, but I can't see the logo in the pictures. Regardless, great price for a complete 1/2 HP
https://www.facebook.com/marketplace/item/898375803918356/
1/2 HP, complete and with base for $40. I think the base is the actual Craftsman one, but I can't see the logo in the pictures. Regardless, great price for a complete 1/2 HP
https://www.facebook.com/marketplace/item/898375803918356/
Maddog1337
Well-known member
Replacing bearings on my 1/3 HP block. Stamped NDH 77503 USA. As far as I know they do not make bearings in the US anymore. I believe you can re-pack shielded bearings? If anyone wants them PM me and just pay shipping.
whateg01
Well-known member
Why not use a 6203?
I got mine from Lowe's or HD
https://gilbo.smugmug.com/Tools/Craftsman-34-HP-Bench-Grinder/Craftsman-34-HP-Grinder/i-SPN2BDW/A
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zanexx
Well-known member
still lookiin for a manual for a 397.19521 if anyone has one. will post pics of the restore progress soon. and if anyone has any insight on the capacitor and relay I'd appreciate it. wondering what original capacitor was rated and make of it because it looks too new to be oriiginal. also wondering about the date code think its nov 62
zanexx
Well-known member
https://www.facebook.com/marketplace/item/191184148610101/
heres a nice one in Hartwell GA for cheap if anyone lives in the area $35
heres a nice one in Hartwell GA for cheap if anyone lives in the area $35
torqueman2002
Well-known member
Zanexx - that's a great HD Block grinder, but I still haven't found any information on that model - 397.19521. Have you checked on OWWM and Vintage Machinery websites?
I searched for your model/capacitor on the Sears replacement parts website (https://www.searspartsdirect.com/model/4t3nvozsjg-000247/craftsman-39719521-power-grinder-parts)
Item #24 - Part #5539080 is na, but if you search Google for that part, a Grainger link comes up (https://www.grainger.com/product/MALLORY-Round-Motor-Start-Capacitor-4X063) for a similarly specked cap. BTW - it is na also; but there's an alternate product: a Dayton cap.
I agree, the capacitor is not OEM. If it isn't leaking (obvious reason to replace) there are ways to test it - some DVMs have a capacitance test mode (Fluke 87), analog meters can also be used (Triplet).
OWWM thread about motor capacitors. http://owwm.org/viewtopic.php?f=82&t=169672&sid=dfe383596299fb8f91d01c1536b58bf4
I agree with the date of manufacture.
The start relays are very reliable. I haven't seen that style before though.
Have you started and run the Block and are there issues? Sorry, I don't recall if you've already mention this.
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zanexx
Well-known member
When I purchased it we ran it and when I got it home I ran it again and it ran pretty good, started fine. I am pretty sure that Packard capacitor is the same model that I pulled out of my belt & disc sander that was bad, so I am definitely going to replace it with something more reliable. If u think the starter relay is good to go then I am going to stick with the one that was in it.
I have checked VM and OMWM and Sears for manuals and have come up empty. I sent a msg to Brian K about it so maybe he will have some luck.
I have it broke down and just got it cleaned and derusted and primed it last night. Removed the label to scan for mattblast.
Got the new bearings ready to go - NDH 77503 OEMs brand new sealed in plastic.
Need to post pics of the safety glass, it cleaned up well but I am unsure about it, dont know if its original or not. Its 2 panes together, or thats what it looks like. it cleaned up great tho. I only broke 1 tab removing the glass! And it didnt even break off when I removed the glass, sometime after I went to clean the frames up and 1 tab was MIA, dont know when it came off or where it went. I will post the pics tho.
I have checked VM and OMWM and Sears for manuals and have come up empty. I sent a msg to Brian K about it so maybe he will have some luck.
I have it broke down and just got it cleaned and derusted and primed it last night. Removed the label to scan for mattblast.
Got the new bearings ready to go - NDH 77503 OEMs brand new sealed in plastic.
Need to post pics of the safety glass, it cleaned up well but I am unsure about it, dont know if its original or not. Its 2 panes together, or thats what it looks like. it cleaned up great tho. I only broke 1 tab removing the glass! And it didnt even break off when I removed the glass, sometime after I went to clean the frames up and 1 tab was MIA, dont know when it came off or where it went. I will post the pics tho.
bctexas
Well-known member
The fellow who installed my lift has been selling and servicing auto shop equipment for many years. While visiting him yesterday looking for some Sun test equipment stuff, he showed me this Craftsman 3/4 hp 8in grinder model 397.19471. It obviously has very little use - the tool rests aren't even scratched and it still has Sears grinding wheels - likely the originals. He told me $125. I hesitated since I hadn't planned on spending that much money. Then he said $100. I asked him where the nearest ATM was.
Anybody have an idea when it would been made?
So, I think I did good. It starts and runs smoothly. It looks new inside. It will look good next to my old 1/3hp 6 inch that I bought new around 1975...
Anybody have an idea when it would been made?
So, I think I did good. It starts and runs smoothly. It looks new inside. It will look good next to my old 1/3hp 6 inch that I bought new around 1975...
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torqueman2002
Well-known member
Nice score!
Many Block grinders have the mfg date ink stamped on the outside of the bottom cover. My SWAG is the 70's.
Buy some insurance by replacing the grinding wheels (~ $23/wheel at Amazon). The RH one has the very common aluminum deposits. I'd use them, if that was the only thing (other than age). They may have been stored in a damp location at some point - and this will degrade the bonding material, with potentially disastrous results.
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bctexas
Well-known member
Nice score!
Many Block grinders have the mfg date ink stamped on the outside of the bottom cover. My SWAG is the 70's.
Buy some insurance by replacing the grinding wheels (~ $23/wheel at Amazon). The RH one has the very common aluminum deposits. I'd use them, if that was the only thing (other than age). They may have been stored in a damp location at some point - and this will degrade the bonding material, with potentially disastrous results.
Thanks Torqueman. I pulled the grinding wheels, sat them on a screwdriver shaft and tapped them - they both ring quite nicely. The housing shows zero sign of damp storage. But yeah, replacing them would likely be smart.....
6252A is the only thing rubber stamped on the bottom plate. I didn't see any date there or inside the housing. Amazing this thing may have been sitting for 40+ years!
torqueman2002
Well-known member
Hmmm, I checked the Sears/Craftsman tool catalogues I have, starting with 1962.
The first 3/4-HP flat top model I found was on pp. 100, of the 50th Anniversary edition of the Sears Power and Hand Tool Catalog, 1976/1977. However, it shows 6x3/4" stones.
I do see a listing for 3/4-HP Blocks with 8" stones, in the 1974/75 catalog, it has the separate HD cast iron base with integral tool rests and cooling tray.
I'll let you know if your model shows up in a later catalog.
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how much would you all say this grinder w/ stand and light is worth? it's up for auction but it's a few hours from me. i have a nice refurbished craftsman drill press. just trying to get an idea what something like this might be worth. Its at $45 right now with 17 hours left until closing.
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torqueman2002
Well-known member
I'm not sure about the value of the stand, it is not a Craftsman. You can look on Amazon, Grainger, Zoro, ....
I can't make out what HP/model Block it is, but I'm guessing 1/3, maybe 1/4.
The value of Blocks is somewhat dependent upon the supply in the area you are willing to travel to.
Here's a link to how I evaluate a Block. https://www.garagejournal.com/forum/showthread.php?p=5563777#post5563777
lafester
Well-known member
Incomplete 1/3 hp with unknown lamp and stand... I think $75 would be about the high end.
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I'm not sure about the value of the stand, it is not a Craftsman. You can look on Amazon, Grainger, Zoro, ....
I can't make out what HP/model Block it is, but I'm guessing 1/3, maybe 1/4.
The value of Blocks is somewhat dependent upon the supply in the area you are willing to travel to.
Here's a link to how I evaluate a Block. https://www.garagejournal.com/forum/showthread.php?p=5563777#post5563777
Thanks for the advice. If it's only 1/3 i don't think it will be worth the expense of driving to get it.
Zeeman
Well-known member
Does anyone have an extra side cover for the Craftsman bench grinder? I'm looking for one and one spark arrestor. I can post pictures if needed.
Thanks.
Thanks.
Outlawmws
Well-known member
You need more details, model No. prefix (different mfg) and HP at a minimum, pics so the differences across the years can be sorted.