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Read articles →This is the third of a three-video series on a Kubota L3400's first 50-hour service, focused entirely on the front axle case oil change. The owner locates all four plugs, drains 3.5 quarts, checks it for debris, and refills with 80-90 gear oil using a funnel-and-tube setup, while comparing dealer, manual, and actual fluid capacities. Best for owners doing their own 50-hour service who want the front axle steps specifically.
Posted by an owner-operator (brandotown) documenting DIY maintenance on his own tractor, not a dealer or professional mechanic.
There are four plugs total: one fill plug, one check plug, and two drain plugs on the bevel gear housing, one on each side.
The owner drained 3 and 1/2 quarts, though the manual lists 4.8 quarts and the dealer said it holds six quarts dry.
The dealer recommended switching to 80-90 gear oil after the first 50-hour change out, replacing the hydraulic fluid used initially.
Fill through the fill plug on the right side until gear oil comes out of the check plug on the left side, then replace all plugs.
