gearbox oil

[john grinder]

what oil to use in a pm-1022v , will 75W90 work ?

 

[ttabbal]

I'm using Mobil DTE Heavy Medium in my 1127 gearbox as it was recommended all over the place. With that as a comparison, I would say 75W90 is too thick/viscous.

 

[tweinke]

I see that there is a nice manual for the 1022/1030 available to down load from the QMT site now that wasn't there a week or so ago. Looks like 70w80 is what is called for. http://www.precisionmatthews.com/wp-content/uploads/2017/01/PM-1030V-2-9-2018-V1-web.pdf. Looks like a decent manual to me.

 

[Ulma Doctor]

you'll be fine in AZ with 75/90

 

[middle.road]

Just don't drive it up into the Rockies...

 

[john grinder]

I see that there is a nice manual for the 1022/1030 available to down load from the QMT site now that wasn't there a week or so ago. Looks like 70w80 is what is called for. http://www.precisionmatthews.com/wp-content/uploads/2017/01/PM-1030V-2-9-2018-V1-web.pdf. Looks like a decent manual to me.

sent message to PM , they sent me a email today saying 75w90 will work . I down loaded the new manual , and I agree , its better than the factory one

 

[john grinder]

I'm using Mobil DTE Heavy Medium in my 1127 gearbox as it was recommended all over the place. With that as a comparison, I would say 75W90 is too thick/viscous.

thanks, I can get 75w90 at auto parts store , that's why I want to use it . I try to support local business

 

[ttabbal]

thanks, I can get 75w90 at auto parts store , that's why I want to use it . I try to support local business

Nothing wrong with that, and it sounds like it's been verified to be acceptable, so that's great! My garage where the lathe lives goes from below freezing to ~110F in the summer. So I needed something a little thinner in the winter at least. Happy turning!

 

[Bob Korves]

thanks, I can get 75w90 at auto parts store , that's why I want to use it . I try to support local business

If you are using 75w90, be careful it does not say EP or extreme pressure on the label. If so, and if you have brass in the gearbox, the sulfur in the oil will attack any yellow metals.

 

[john grinder]

If you are using 75w90, be careful it does not say EP or extreme pressure on the label. If so, and if you have brass in the gearbox, the sulfur in the oil will attack any yellow metals.

thanks , will check . it says GL-5 , also states extreme pressure ! does any one know if there are bronze bushings in the gear box , or apron ? thanks