Good morning , I need some advice on my cat d6c 10k series dozer. I noticed a small oil leak on right side rear sprocket hub seal leaking on out side track pad. ck fluid with magnet, drained fluid no signs of metal contamination. took big pry bar against sprocket did not have any movement from side to side that I could see. Need some guidance on my step. thank you , keith
I would say that it could be your outer duo- cone seal, which is a lot easier to replace than the inner one.
This is the trick you have to do if your hub seal/s are dripping a bit of fat, remove the big end cap (this should be full of grease) then remove the lock plate off the dead shaft nut and check its firm done up, then remove the outer hub lock and pinch bolt that is behind the sprocket guard, try to tighten the lugged collar anti-clock as you face it, the correct tool is an adjustable C spanner so something like a crow bar might do if that is all you have, the outer collar is done up fairly tight around a 5ft lever should manage the task, if you do this and things are still dripping then you need to pop it all to bits including the case and do the final drive service with most probably an inner bearing change new duo-cone seals and so on, you never change just the outer seal set, allow 2 days work to undertake this task possibly a bit longer if there is other bearings to change, it might be worth you looking in the shop talk section to get some ideas? tctractors