Final Drive Oil

[Laddbg]

Just purchased a used high hour Hitachi EX220LC-3 Excavator. I have changed all the fluids except for the final drive motors. The factory Hitachi manual specs out a GL4 gear lube. I cannot find this fluid anywhere in bulk. I have talked to guys that are running GL5 but no one from the lubes tech lines will recommend using a GL5 due to the different Add Pack. Any suggestions would be appreciated.

 

[Cardenio327]

Tractor multi-fluid is GL4 rated. Any brand should work.

Chevron 1000 THF

 

[ac_tc]

Im not really sure a tractor fluid would be really right here.
A GL-4 oil cant be hard to find..search some more.
Or find a dual rated GL4/5 oil, perfectly good.
Keep track of the levels, sometimes they rise due to leakage from
the hydrauli Engines, also make sure all Wents are open or you could end up with a lot of pressure in the gear boxes.
You´ve got a rather big chunk of metal there.

 

[Jetronic]

GL4 is a manual transmission fluid, so have a look at those in the viscosity you need.

dual rated oils have a compatible add pack, but are usually heavy when cold.

 

[ac_tc]

From mobil:6.5 Liters aprox 2.5 gallons??
1st choice Mobilube 1 SHC 75W-90
2nd choice Mobilube S 80W-90
3rd choice Mobilube GX 80W-90

Expensive piece and Heavy wheight to repair so take good care of it. I have a Akerman H14 roughly 55000 Pounds of excavator..

 

[ac_tc]

You should also periodically esp Before Winter drain any water thats been condensing in your gearboxes and tanks.
It aint fun when your turning gearbox has got a crack in it because of ice inside....
- it might be a good idea to take an oil sample from the large
hydraulic tank to se if your oil really needs to changed.

 

[Whitewolf]

You might want to take a look at some of the Universal Tractor Transmission Oils (UTTO) but if you do I would advise you to stick with a major brand and read the labels carefully. These fluids are as susceptible to 'weasel wording' as many others so watch out for 'recommended' or 'suitable' etc. If you're not sure I can list you some.