Cat 312 final drive issue

[Beegs]

Looks like I messed up my reply above.

I am anxious to reseal it. I was pulling stumps yesterday and within a short period of time, the machine was not as responsive as it normally is. Particularly when swinging and raising the boom. I told my son, it’s almost as if some seals let go and have become lodged. After reading your comment, I feel confident that resealing will hopefully take care of what’s going on. Thanks!

I want to thank everyone for their input. I will report the results when I get it done.

 

[Nige]

This may help. Lots of assembly lube when reassembling the swivel will hopefully prevent seals getting cut as it goes back together.

 

[uffex]

Good day and good luck with that, I fail to understand the swing and boom issue connection central joints passing seals will go via the track spools back to main filters - plugging the main hose with a guage did not call for to much effrot even if you avoid eliminating the spool & housing. Our experience removing cemtral passage's in modern machines is bloody difficult take a look at those with short tail swing mabe some folk have rubber arms and flexible spanners.Maybe better gamble to pull the filters first.
Keep smiling
Uffex

 

[Beegs]

I bought the seals and some hydraulic fluid. I have everything disconnected and hoping to have time tomorrow to reseal and reinstall. Will update soon. Thanks again to everyone... fingers crossed.

 

[Beegs]

Everything is back together. Four of the five seals were gone. Travel works perfectly now and the weird feeling when swinging and booming up is gone. Runs like a new machine. Thanks for all the suggestions and advice!

 

[CatKC]

Looks just like John C described failing seals. . . . .