Gear Oil for Older Gear Box

Mikeny · Post by **Mikeny** » Wed. May. 13, 2009 8:59 pm

Hi, I'm setting up an older used 520 and want to change the gear oil. I saw a post from Stoker-Man recommending 20w oil. Is that motor oil? The only "gear oil", I'm finding around here is more like 80-90w
ps. This forum is amazingly helpful

Post by **stoker-man** » Thu. May. 14, 2009 12:17 pm

I'm on vacation and don't have my contacts at hand, but I'm pretty sure it's machine oil or straight 20W motor oil. Smell it. You can smell gear oil.

coal berner · Post by **coal berner** » Fri. May. 15, 2009 10:52 am

EFM AP-520 & the older DF-520. Note The new Reducing unit are self lubricating sealed up units on the newer DF-520.

Motor - fill each cup with ten drops of either SW-30 or 10 W Oil once to twice a year unless stated otherwise on motor
label by motor manufacturer .

Reducing unit - Use light gear oil - examine level once a year.

Connecting rod - both ends bearing bracket and Pawls - a few drops of machine oil every month.

Ratchet Oil Reservor - Fill with extra heavy gear oil (600W or Oil of equal viscosity) as required .

Post by **stoker-man** » Fri. May. 15, 2009 10:58 am

If your gear box is large, blue, and has a 90 degree elbow to fill it, it uses the light oil. Fill so you can see the oil in the fill elbow.

coal berner · Post by **coal berner** » Fri. May. 15, 2009 11:15 am

stoker-man wrote:If your gear box is large, blue, and has a 90 degree elbow to fill it, it uses the light oil. Fill so you can see the oil in the fill elbow.

Note all AP-520 use the large Reducing gear box with the 90 degree elbow and some of the early DF units had them
aswell. Also some had a small glass window in them so you could see the oil level