Where do you fill rear differental with oil on 540b log skidder?

To fill the rear differential with oil on a 540B log skidder, locate the fill plug on the differential housing, which is typically positioned on the top or side. Remove the fill plug and use a pump or funnel to add the appropriate oil until it reaches the recommended level, usually just below the fill hole. After filling, securely replace the fill plug to prevent leaks. Always consult the operator's manual for specific oil types and capacities.