Your theory, no offense but look at the specs and you will see the manufacturer reasoning for hydraulic fluid.My theory is that they install the light lube to aid with the break-in process and it flushes any metal grindings out easily at the initial lube change time. As for installing a 10w30 in the front axle out of concern in cold weather, what then should we do in the hot weather? A motorcycle specific 10W40 or 20W50 would be an Ok choice too. The gears in the front axle take a lot of abuse, what with steering, or when 4x4 is activated in snow or dirt, or carrying heavy loads in the bucket etc. So why not use a gear lube since that is the application? Use a good synthetic and change it every 500 hrs or so. I used Amsoil 75W110 and I use my Kioti CK30HST in all kinds of Canadian weather. Dutchy
Example Mobil 424
Recommended by ExxonMobil for use in
Heavy-duty transmissions, differentials, final drives, hydraulic systems, power steering systems, wet brakes, PTOs and hydrostatic drives
Off-highway industries including: agriculture, construction, and quarrying
Top-up and refill of systems
Commercial transmission applications requiring Type A (Suffix A), Dexron and Type F fluids. Do not use in passenger car automatic transmissions
Applications requiring API GL-4 or SAE 80W grade lubricants in all gear applications except hypoid gear designs
Outstanding replacement for engine oils recommended for hydraulic and transmission systems
Notice API GL-4, same as differential fluid. But also the Mobil 424 specs says differentials.
I uploaded picture for specs of my CK3510
Do you counter balance the rear of the tractor when using the FEL?
Well, I owe Dutchy an apology as I was wrooooonnnnggg. I pulled my service manual and looked at the front axle section. See added picture. And notice note, for easy manufacturing process they added trans fluid to front axle. Since I'm a Royal Purple guy I think I will get the 75w90
for mine. I know my dealer mentioned 10w30 transfluid for front axle but Mobil 424 says not for hypoid gears.
41.9 KB Views: 183
60 KB Views: 209