One of the final drives is leaking between it and the sprocket. I split the track and found the sprocket was loose. This is an early 931 and has the long track roller frame. Have the sprocket loose but cannot remove it from between the shaft and frame. The newer 931 have a shorter roller frame which would make it easy to remove the sprocket. Just cut some of the frame off to get the sprocket off? It does not seem to be of any purpose being long at that place.
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