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Re: 10 ER Speed Changer Lubrication
Posted: Sun May 24, 2020 8:14 pm
by jsburger
curmudgeon wrote:jsburger wrote:curmudgeon wrote:
What should I do now?
- run it with grease and use oil next time
- clean out the grease and replace with oil now
- or...
I would just wipe off all the grease you can and apply a few drops of turbine oil. After a short time of running wipe it off again and add a bit more oil. Just don't over oil it. The grease won't really hurt it.
Thanks for the advice John. I'll replace the grease with turbine oil before reassembling. Is
AeroShell 500 suitable?
-Steve
I would guess it is fine but I don't use anything that fancy. I think this is what most of us use.
https://www.homedepot.com/p/DIAL-4-oz-E ... B1%7D%3Anf
Of course it might be a different brand depending where you buy it. If you notice it says on the label it is good for cooler bearings. They are talking about vaporative coolers ("swamp Coolers") out here in the west. They have the same sintered bronze bushings as the 10ER speed changer. The other advantage is the zoom spout. It pulls out about 4" so it is great for reaching inside the head stock to oil the floating sheaves.
Re: 10 ER Speed Changer Lubrication
Posted: Sun May 24, 2020 9:53 pm
by curmudgeon
Awesome! Thanks for a specific product link. It's not carried in-store locally, but I ordered it online for pickup in store - should be here in 2 weeks.
Re: 10 ER Speed Changer Lubrication
Posted: Sun May 24, 2020 10:32 pm
by reible
Around my area the Ace Hardware store carries it too.
Ed
Re: 10 ER Speed Changer Lubrication
Posted: Mon May 25, 2020 12:55 am
by curmudgeon
reible wrote:Around my area the Ace Hardware store carries it too.
Good to know, Ed. Thanks.
The Canadian, Ace Hardware website doesn't list it, but it is on the American site. Nearest Ace Hardware is about a 40 minute drive, and I can walk to Home Depot quicker.
Re: 10 ER Speed Changer Lubrication
Posted: Mon May 25, 2020 5:15 pm
by chapmanruss
Most of this topic has dealt with the sintered bronze bushings that are pressed into the Floating Pulley Assembly which turns on the Arm's shaft. Already good information on lubrication for that. I use light oil too. The other location needing some kind of lubrication is in the Floating Pulley Assembly itself. This is what I believe the second poster on this thread lyall was referring to. The floating center of the Pulley Assembly slides back and forth on the hollow shaft. It needs to be lubricated to keep it from "freezing up". lyall was suggesting powered graphite. I use white lithium grease being careful not to get too much on it and wiping off any excess as I reassemble the Pulley Assembly. Care is taken so grease does not get on the belt. Others may have different suggestions on a lubricant for this.
Several of the Speed Changers I have restored have had the center pulley sheave stuck on the shaft. Other have had worn bushings. Proper lubrication will prevent this from happening.
Re: 10 ER Speed Changer Lubrication
Posted: Tue May 26, 2020 1:43 am
by curmudgeon
chapmanruss wrote:Most of this topic has dealt with the sintered bronze bushings that are pressed into the Floating Pulley Assembly which turns on the Arm's shaft. Already good information on lubrication for that. I use light oil too. The other location needing some kind of lubrication is in the Floating Pulley Assembly itself. This is what I believe the second poster on this thread lyall was referring to. The floating center of the Pulley Assembly slides back and forth on the hollow shaft. It needs to be lubricated to keep it from "freezing up". lyall was suggesting powered graphite. I use white lithium grease being careful not to get too much on it and wiping off any excess as I reassemble the Pulley Assembly. Care is taken so grease does not get on the belt. Others may have different suggestions on a lubricant for this.
Several of the Speed Changers I have restored have had the center pulley sheave stuck on the shaft. Other have had worn bushings. Proper lubrication will prevent this from happening.
Thanks Russ,
Funny... the manual says to use a "light, non-gumming oil" for the pulley assembly and forum wisdom advises powdered graphite or white lithium grease, and the manual says to use "a good grade of cup grease" for the bearing while the forum advises turbine oil. Of course I've done both backwards.
-Steve
Re: 10 ER Speed Changer Lubrication
Posted: Tue May 26, 2020 12:44 pm
by jsburger
curmudgeon wrote:chapmanruss wrote:Most of this topic has dealt with the sintered bronze bushings that are pressed into the Floating Pulley Assembly which turns on the Arm's shaft. Already good information on lubrication for that. I use light oil too. The other location needing some kind of lubrication is in the Floating Pulley Assembly itself. This is what I believe the second poster on this thread lyall was referring to. The floating center of the Pulley Assembly slides back and forth on the hollow shaft. It needs to be lubricated to keep it from "freezing up". lyall was suggesting powered graphite. I use white lithium grease being careful not to get too much on it and wiping off any excess as I reassemble the Pulley Assembly. Care is taken so grease does not get on the belt. Others may have different suggestions on a lubricant for this.
Several of the Speed Changers I have restored have had the center pulley sheave stuck on the shaft. Other have had worn bushings. Proper lubrication will prevent this from happening.
Thanks Russ,
Funny... the manual says to use a "light, non-gumming oil" for the pulley assembly and forum wisdom advises powdered graphite or white lithium grease, and the manual says to use "a good grade of cup grease" for the bearing while the forum advises turbine oil. Of course I've done both backwards.
-Steve
I use turbine oil for both. One thing to remember, that manual was written over 70 years ago. A lot has changed with lubricants in the last 70 years.
Re: 10 ER Speed Changer Lubrication
Posted: Tue May 26, 2020 1:26 pm
by chapmanruss
The Model 10 Manuals also tell you to use a light coat of oil on the Way Tubes and other metal parts for lubrication and protection. We now know it is better to use paste wax for that. As John said a lot has changed in 70 years. Oil or white grease on the sleeve is up to you as both work. The advantage of using oil is you do not have to disassemble the Pulley Assembly to re-lubricate. Oil only for the bronze bearings. The important thing is to have them lubricated.
Re: 10 ER Speed Changer Lubrication
Posted: Thu May 28, 2020 12:23 pm
by JPG
That ain't the type of turbine that comes to my mind when recommending 'turbine' oil. However if the viscosity is close to SAE#10 it should do very well.
Re: 10 ER Speed Changer Lubrication
Posted: Thu Jun 04, 2020 5:37 pm
by curmudgeon
How hot should the Speed Changer bearing get while running?
I ran my 10E for the first time this week, less than 10 minutes continuous while I experimented with changing speeds (always while shafts are turning by hand or by motor), and drilling a test hole. The motor and headstock castings were all cold to the touch, but the Speed Changer was quite warm (not hot), but warmer than I expected it would be.
I'm hoping my turbine oil will arrive this week and I can replace the grease in the bearing.