This past weekend I got some significant work accomplished. Before I get to it, here is an older pic of ½ of my workshop.
View media item 108517
OCD helps when putting things in order. Although, a few years ago I found out its not actually OCD, rather knolling. A concept I never knew was an actual thing… Anyway, here is a good video about shop rules and Rule #8 is “Always BE Knolling” (ABK), for those of us who find it irresistible to align things in the candy bins while waiting in line at the grocery store, feel vindicated…
I digress, so up to this point I disassembled the press.
Here is a pic of the chuck parts once I started cleaning them.
View media item 108518
And some random pics of disassembled parts.
View media item 108523
View media item 108503
View media item 108508
View media item 108509
View media item 108524
View media item 108533
Since the owner’s manual does not have a copyright date or any date and the date code on the press and motor are completely a mystery to me, I went to the internet to see if I could date this press. I found a web site that has old Sears catalogs from the 1940s through 2009 that you can sort through, here is a link if anyone needs it.
https://christmas.musetechnical.com/
Anywho, starting with 1968 (my birth year) and working forward, in 1971 I found a press that either is the same press I have or very similar. The description is spot on, but the listed model number is not. The picture looks like my press, but I am not sure if it is the same model of mine or if my press was a year or two later. By the way it sold for $209.00 back in 1971 and that equates to $1,349.44 in 2020 dollars.
Edit 9-19-2021 This drill press is dated May of 1981 making this drill press an Emerson Gen 4 model.
Here is a pic of the catalog page.
View media item 108535
Once everything was disassembled I started to clean everything. First a bath in Simple Green for a few hours. Here is the Spindle in the Simple Green bath.
View media item 108513
And then anything with rust got an overnight bath in Evapo-Rust. This stuff is awesome.
View media item 108526
Parts in various stages of cleaning.
View media item 108539
View media item 108529
After cleaning to bare metal everything got a coat of WD 40 until I could decide what needed buffing and what lubrication I would use for re-assembly.
For the Chuck reassembly, I buffed everything then degreased, then used Mystik JT-6 EP Lithium Grease High Temp with 3% moly. Here is the chuck reassembled.
View media item 108537
And here is the pesky C-clamp retaining ring (yellow arrow). You can see that there is very little room to work with. Getting is out was way easier than putting it back in.
View media item 108507
Next, I tackled the spindle pully insert. This is how it looked once I got it out of the press.
View media item 108528
New bearings and cleaned up and here is how it looks now.
View media item 108540
Next, I worked on the motor. This motor is a 113.12791 Craftsman 1/2HP Capacitor Start AC Motor with sleeve bearings. My knowledge about motors is very limited and I knew nothing about sleeve bearings when I started this.
View media item 108522
View media item 108514
View media item 108527
View media item 108538
It was fairly nasty inside but with careful cleaning, It look near new now.
View media item 108536
I masked off the motor and painted it with Krylon Industrial Tough Coat Rust Preventative Spray Paint in Gloss Machinery Blue/Gray. From everything I have read, this is a very close color match to the Craftsman gray and from what I can now see, yes, it is very close, albeit, a little glossier than the craftsman paint.
View media item 108532
The motor ran well before I started this, so I am hoping I reassembly it correctly and it continues to run. The sleeved bearings through me for a loop once I got it open. I was expecting to find sealed bearing like inside the press, that I could simply replace. Oh well, it was a learning experience. I have reassembled the motor, but I have not tested it yet. I wanted to get some feedback from you guys before I put any power through it.
View media item 108530
I lubed the wool in the sleeved bearings with 30wt Mobil motor oil. One thread I read, and the owner’s manual recommends “a good grade of medium weight mineral oil, such as automobile engine oil, SAE 20”. The one issue I do have and need help on is the order and orientation of the shaft spacers and seals. In this pic is the shaft assembly and under it are the parts in question. Since the owner’s manual does not have a parts diagram of the inside of the motor and it states that the motor should be taken to a motor repair shop, I am a bit lost. I completely forgot to take a picture of the spacers on the shaft before I removed them and now, I do not know the order and orientation. On the left side of the shaft is the (1) spacer, fiber, or plastic or something other than metal?, (2) rubber seal, (3) metal seal cap thing?, (4) retaining ring. On the business end of the shaft is (A) rubber seal, (B) retaining ring, (C) metal seal cap thing?, (D) another rubber seal, (E) spacer, fiber, or plastic or something other than metal?
View media item 108531
The metal seal cap thing has a protrusion that prevent anything butting up to the cap except the retaining ring and the protrusion sits over the top of the retaining ring. This is the only way I can see that this goes together. So, the order and orientation I used for the (as pictured above) left side (inner) of the shaft is like this diagram I made.
View media item 108541
The yellow is the (1) spacer, fiber, or plastic or something other than metal?, the green is the (2) rubber seal, the white is the (3) metal seal cap thing?, and the black is the (4) retaining ring. Does this look correct to yall?
The other end of the shaft I ordered and orientated everything like this.
View media item 108542
The black is the (B) retaining ring, the white is the (C) metal seal cap thing?, the green is the (A) rubber seal, the red is (D) another rubber seal, and the yellow is the (E) spacer, fiber, or plastic or something other than metal? Does this look correct to yall?
As I am inexperienced with electric motors, I am hesitant to power this thing up till I get some sort of guidance from yall.
The other thing I am hoping to get some help on is a source for a replacement rubber seal. This one (bottom of picture) is listed as craftsman 27813 Quill Gasket. I assume I can size it and find a supplier but if anyone has a good lead, I would appreciate it. For that matter, I should also look for replacement rubber gaskets for the motor shaft. Also, there is a fiber washer part # 38452 that goes with the hub assembly for the Quill return that I would also like to replace. The Quill Spring #38989 is still good, but I would like a replacement for it if it later breaks or gets too week.
View media item 108520
Ok, I still need to remove all the rust and clean up the large parts, Head, Table, Base, and Column. Since all the parts are large, a bath in the Evapo-Rust is not feasible so I think it’s the wire wheel and scotch-brite wheel for these parts.
View media item 108505
View media item 108515
View media item 108519
View media item 108525
View media item 108516
View media item 108534
That is where I am at the moment. I look forward to your comments, suggestions, recommendation, etc…