Unit Crane Oils

[ror76a]

I have 3 old Unit cranes, and they call for SAE 140 ep gear lube in some of the gear cases, have been using service pro 80-90W GL5, (as that is what is on hand for the other equipment) and I am concerned about the GL5 vs the bronze gears and bushings, how much of a concern is it? They only get used 20-50 hours a year, but the gear oils don't always get changed every year.
Second question is the swing clutches run in oil, they call for Unit No 939037 oil, does anyone have a cross reference for this, or what should I be using for this?
Third is the main gear case calls for Unit 929072 grease, have been using Amoco Rykotac ep grease, is this still available? (I am running out)

 

[Rand]

all modern gl-5 gear oil is buffered and inactivated

I would use a brand name 85w140 over 80w90 which is too thin. No idea if thats a good or best option however.

Didnt find anything about No 939037 oil or 929072 grease

 

[Ramblejam]

Welcome to the forum.

Rand is correct on the 85w-140.

Is there any reason the "main gear case" can't hold oil? I'd also prefer 85w-140 here.

As for the swing clutch oil, universal tractor fluid would be appropriate.