Bringing this one back from the dead as I was tinkering on my personal HJ61 with the PTO. Now, I've serviced this tcase/PTO as well as many others with the PTO over the years and don't recall ever giving it much thought. We all agree the transfer case lube is shared with the PTO unit on the side of the tcase. And we agree the manual for both a standard split t-case and PTO t-case both call for 2.2L. The PTO unit itself calls for 0.5L.
But you can't just pump them full and plug them when they drain out as the PTO fill sits approx 1" higher than the t-case fill. So if you pump all the fluid via the PTO fill, you could watch for the lube to fill the PTO, splill over and fill the tcase. BUT, if you fill the tcase first, plug it, and then move to the PTO. You could add considerably more lube into the tcase itself, like 1+L extra.
So I'm curious. For those of you with split transfer cases and PTO's, what's your filling method?
Bottom of PTO fill on left (it's on the side of the box, you can see the boss in pic). It's bottom isover the top of the actual t-case fill on right.
But you can't just pump them full and plug them when they drain out as the PTO fill sits approx 1" higher than the t-case fill. So if you pump all the fluid via the PTO fill, you could watch for the lube to fill the PTO, splill over and fill the tcase. BUT, if you fill the tcase first, plug it, and then move to the PTO. You could add considerably more lube into the tcase itself, like 1+L extra.
So I'm curious. For those of you with split transfer cases and PTO's, what's your filling method?
Bottom of PTO fill on left (it's on the side of the box, you can see the boss in pic). It's bottom isover the top of the actual t-case fill on right.