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This is what Steve at monarch's recommendationsWhat model lathe do you have?
If you have a 10EE, does it have 1 or 3 oil sight glasses on the headstock?
Cal
Dan,This is what Steve at monarch's recommendations
Our recommended oil for the EE Lathe is as follows:
Headstock Mobil DTE 24 (ISO HM-32)
Apron Mobil Vactra 2 (ISO G-68)
Gearbox Mobil Vactra Heavy Medium (ISO HL-68)
Backgear Mobil Vactra Heavy Medium
Tailstock Mobil Vactra Heavy Medium
Regards,
Steve Andrews
Service Manager
Dan,
That would be correct for the newer 10EEs with a single oil sight glass. For the round-dials and older square-dials with 3 oil sight glasses, Heavy Medium should be used in the center reservoir.
I question using Heavy Medium in the tailstock. I would use way oil there (Vactra #2)
The Vactra named series, such as Vactra Heavy Medium is no longer produced for the general public. It has been replaced with the DTE named series, i.e. DTE Heavy Medium (ISO VG-68) or DTE Light (ISO VG 32).
Cal
Basically, yes.Now I'm confused,
Can I still use the DTE 24 for the front and rear spindle bearing?
The Mobil Vactra Heavy Medium for the center chamber where the gearing is?
Apron Mobil Vactra 2 (ISO G-68)
Gearbox Mobil Vactra Heavy Medium (ISO HL-68)
Backgear Mobil Vactra Heavy Medium
Tailstock Mobil Vactra 2 (ISO G-68)
Is this what you mean?
Dan
True.OK, this is an interesting question to me.....
Early (3 sight glass, square dial EE) uses 2 different oils in the head stock, while later single glass machines use only one oil for everything...Yes?
Besides the way the basic headstock sumps are made what difference is there to the working parts between the two styles of head stocks?
Don't both have the same basic internals, gears and all?
I wouldn't have a major problem with using DTE Light in the center reservoir, but since I have both available, I use the Heavy Medium in the middle. Thousands of 3-reservoir 10EEs are still in service, so the heavier oil in the center reservoir can't have been a mistake....
Further i think there is some migration of oil from the end sumps to the center on a 3 glass machine..the fit of the bushings and clearance on the spindle can't prevent this. (Especially on machines that have seen some use)
Since some mixing of the oils is going to happen (i believe) i think it prudent to use a single oil type in the three glass machines just like the later single glass ones.....
...
I'm gonna order all the right oil I need for my 10ee, how do I drain all the oil from the 3 different chambers in the headstock? I've got the early machine 1940. So I want to clean out the insides so the sight glasses are clear, what is the best way to do this? And for draining The oil, does the front and rear spindle bearings and the gearbox all have separate drain plugs? Thanks
The two end chambers in the headstock for the spindle bearings have no separate drain or pipe plug to empty them. Their low points and drains are the sight glass ports. You have to remove the sight glass assemblies to clean them so you'll be opening those ports anyway. The center chamber of the headstock has a capped 1/4 in. pipe under the top end cover that serves as its drain.
The sight glass assemblies will be stuck when you remove the three screws holding each one. The trick to getting them out is to twist them to break the seal the rings develop with the cork gaskets sealing them. Many of us make a simple tool out of scrap with three .125 or so dia. pins sticking out about .25 in. which fit into the screw holes. Engage the tool into the metal ring and twist the tool to break the seal.
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