gearbox fluid change question

reggiejr · Oct 24, 2011

Im getting my 72" 3pt snowblower all tuned and ready for snow.The gear box looks standard and has three plugs one on top,one on the bottom to drain,and one on the side midway.my question is the recommended fluid level,do i drain and remove middle plug and fill untill it weeps out or do i top it off all the way to the top of the entire box?I have no manual and no means to get one and the company is no longer in business (JRW) so im looking for some advise so i dont do more harm than good. And also is 80-90w gear oil a good choice for this type of setup?

Thanks

KubotaSam · Oct 25, 2011

Fill until the oil starts to come out the plug on the side. Do not fill it all the way you will blow out the seals when the fluid warm up and expands. 80-90 wt gear lube is a good choice.