Search found 37 matches

by John R
Fri Jul 07, 2023 6:16 pm
Forum: 3-in-1 Metalworking Machines
Topic: Grizzly G9729 Oil Leak
Replies: 8
Views: 12780

Re: Grizzly G9729 Oil Leak

I too would be interested in knowing what you did. My machine has had a leak like that for years. When I installed new bearings in the lathe a couple of years ago I put a new gasket around the back plate and used ultra black when I did it but I still have the leak. I just wipe it up and keep adding ...
by John R
Sun Dec 06, 2020 12:49 pm
Forum: General Discussion
Topic: lathes and mills cannot be level on ships?
Replies: 41
Views: 16835

Re: lathes and mills cannot be level on ships?

Thanks for the responses. They got me to thinking and googling around so in addition to what you fellows posted I've learned quite a bit here. As I recall every machine shop we saw on our tours was located pretty much in or near the center of the ship both length and width wise, which would tend to ...
by John R
Fri Dec 04, 2020 8:10 pm
Forum: General Discussion
Topic: lathes and mills cannot be level on ships?
Replies: 41
Views: 16835

lathes and mills cannot be level on ships?

Over the years the wife and I have toured a number of wwii battleships and aircraft carriers and the machine shops on them have always been impressive. I occurred to me recently that the lathes and milling machines in them may have been levelled at some point but while at sea all bets are off re the...
by John R
Wed Nov 11, 2020 7:58 am
Forum: 3-in-1 Metalworking Machines
Topic: replacing lathe bearings on 9729
Replies: 13
Views: 26941

Re: replacing lathe bearings on 9729

Whip sawing main shaft with 320 crocus cloth and the new bearings now go on without press.
by John R
Wed Nov 11, 2020 7:56 am
Forum: 3-in-1 Metalworking Machines
Topic: replacing lathe bearings on 9729
Replies: 13
Views: 26941

Re: replacing lathe bearings on 9729

No hole in top of main case and driving the main shaft out of the bearings and gear A.
by John R
Wed Nov 11, 2020 7:48 am
Forum: 3-in-1 Metalworking Machines
Topic: replacing lathe bearings on 9729
Replies: 13
Views: 26941

Re: replacing lathe bearings on 9729

The new bearings are in and the lathe is running smoother than it ever has with no more rumble. There is no runout and I have been cutting chips and turnings on mild steel with no problems. At the start of this thread I asked if anyone had replaced the bearings on a 9729 and if they had any tips, an...
by John R
Fri Nov 06, 2020 12:21 pm
Forum: 3-in-1 Metalworking Machines
Topic: smoke coming out of 9729 lathe motor connector box
Replies: 13
Views: 24140

Re: smoke coming out of 9729 lathe motor connector box

These pictures show the new motor mounted on the machine and a cover I made for it to keep shavings/chips off. The new motor housing is ribbed to assist with cooling.
by John R
Fri Nov 06, 2020 12:04 pm
Forum: 3-in-1 Metalworking Machines
Topic: smoke coming out of 9729 lathe motor connector box
Replies: 13
Views: 24140

Re: smoke coming out of 9729 lathe motor connector box

The new, version three, motor, as mentioned above, will have six terminal connections instead of four. It will also have jumpers across four of those connections. You don't want the jumpers on there so remove them. Also, because the motor has to be mounted with the terminal/capacitor cover towards t...
by John R
Fri Nov 06, 2020 11:56 am
Forum: 3-in-1 Metalworking Machines
Topic: smoke coming out of 9729 lathe motor connector box
Replies: 13
Views: 24140

Re: smoke coming out of 9729 lathe motor connector box

old and new motor.JPG
This picture shows the old and new, larger, motor side by side, and the u shaped capacitor/terminal cover.
by John R
Fri Nov 06, 2020 11:45 am
Forum: 3-in-1 Metalworking Machines
Topic: smoke coming out of 9729 lathe motor connector box
Replies: 13
Views: 24140

Re: smoke coming out of 9729 lathe motor connector box

It took me awhile but I finally got around to installing the Grizzly replacement motor and lathe bearings. The bearing installation will be covered in that thread. As for the motor it turns out that there have been three versions of the 9729 machine and I have version one. The current version being ...
by John R
Thu Sep 03, 2020 12:08 pm
Forum: 3-in-1 Metalworking Machines
Topic: smoke coming out of 9729 lathe motor connector box
Replies: 13
Views: 24140

Re: smoke coming out of 9729 lathe motor connector box

Well the 8/25 shipment was not received by Grizzly and they're saying the next shipment will arrive on 10/12. I've found a C32000-1 motor at Detroit Machine Tools who are the vendor for Smithy products. They've sent me pictures and mounting measurements for that motor, which is for their Midas machi...
by John R
Fri Aug 07, 2020 12:35 pm
Forum: 3-in-1 Metalworking Machines
Topic: replacing lathe bearings on 9729
Replies: 13
Views: 26941

Re: replacing lathe bearings on 9729

I just ordered both bearings and gaskets and the total with regular shipping and tax was $106.08. The fact that these were in current stock tells me I am not the first to be putting new ones in. This machine is 12-18 years old on my watch and dk how many more before I bought it from a commercial con...