Noland
Member
I have a Komatsu D31PX21 Bulldozer that recently noticed the final drive was grinding a little and has gradually gotten loader. When I checked the oil in the gear case it was completely dry and had what looked to black dirt inside the gear case. Refilled with oil... ran it, then changed the oil again. Did this a few times to flush as much dirt out as possible. After running the machine a few more days we checked the oil again and the gear case was completely dry again. So we refilled it, ran it a day and checked it again and it had lost about half a gallon. Can't not find any leaks behind the sprocket. Then noticed today the hydraulic oil was contaminated and black.
Can gear oil from the case leak into main hydraulic system?
Any help would be appreciated!
Can gear oil from the case leak into main hydraulic system?
Any help would be appreciated!