MiniFinalDrives is an independent aftermarket distributor and not affiliated with any compact equipment manufacturer brand - we buy in volume direct from the final drive suppliers of all brands so you get OEM-or-better quality at low wholesale prices!

MiniFinalDrives is an independent aftermarket distributor and not affiliated with any compact equipment manufacturer brand - we buy in volume direct from the final drive suppliers of all brands so you get OEM-or-better quality at low wholesale prices!

MiniFinalDrives is an independent aftermarket distributor and not affiliated with any compact equipment manufacturer brand - we buy in volume direct from the final drive suppliers of all brands so you get OEM-or-better quality at low wholesale prices!

FREE SHIPPING in the 48 US States----------------------------------IN STOCK NOW in our warehouse in NC, USA---------------SAME DAY SHIPPING if ordered by 2PM ET M-F

FREE SHIPPING in the 48 US States----------------------------------IN STOCK NOW in our warehouse in NC, USA---------------SAME DAY SHIPPING if ordered by 2PM ET M-F

FREE SHIPPING in the 48 US States----------------------------------IN STOCK NOW in our warehouse in NC, USA---------------SAME DAY SHIPPING if ordered by 2PM ET M-F

Final Drive Maintenance: Checking and Changing Gear Oil

minifinaldrives
minifinaldrives
April 26, 2023

Final Drive Maintenance: Checking and Changing Gear Oil

A little bit of periodic maintenance can reduce the downtime for your mini excavator and extend the service life of its final drive motor. It’s an obvious, yet often overlooked activity—checking and changing the gear oil in your heavy equipment’s final drive.

Final Drive Maintenance Basics

Let’s begin with some maintenance basics. Ask yourself these questions:
  • Do you have a documented maintenance schedule for each piece of heavy equipment?
  • Do you know when this equipment last received a change of final drive gear oil?
  • When was the last time the oil levels were checked in the travel motors?
If you can provide definitive answers, then you clearly understand the importance of gearboxes and lubrication. An uncertain answer means your equipment may need more maintenance attention.
To begin with, always check the owner’s manual for the factory-recommended oil change schedule. A useful guideline is to check the oil level for every 100 hours of operation and do an oil change at least once a year.

Final Drive Maintenance: Checking The Oil Level

Let’s review how to check a final drive’s oil level.
Step One
First, make sure that the equipment is on level ground. Locate the cover plate of the final drive motor and identify two or three drain plugs. Next, position the travel motor so that one plug is set at 12 o’clock and another plug is positioned at either 3 or 9 o’clock.
Step Two
Ensure that the plugs and the adjacent areas are clean and free of dirt, sand, and other debris. Keep in mind that the plugs may be under extreme pressure. You may need a few hammer strikes to loosen the plugs.
Step Three
Next, carefully and slowly turn your wrench to loosen the plug at the 3 o’clock or 9 o’clock position. Allow any pressure to escape gradually. Caution is warranted here, as extreme pressure can turn the plug into a projectile.
Step Four
With the plug removed, a small amount of oil draining out means the oil level is fine. A large amount can mean that the drive was overfilled (not a good thing) or that the equipment is not level.
If the oil level is low, open the plug at the 12 o’clock position and add oil through this hole until you see oil begin to drain out of the 3 o’clock or 9 o’clock opening. Be sure to use the correct type of oil and never mix oil types.
Tightly secure the loose plugs, and your equipment will be ready for its next job.

Final Drive Maintenance: Changing the Gear Oil

Changing the gear oil or gear lube is equally a simple and straightforward process.
Start by checking the owner’s manual to verify the oil type – remember that you should NEVER combine different types or grades of oil.
Due to the oil’s viscosity (thickness), draining the oil will be easier when it’s warm.
Our instructions here will assume that you are changing the oil as a separate task from checking the oil level. Some steps may appear to be similar.
Step One
Make sure that the equipment is on level ground. Next, locate the cover plate of the final drive motor and identify two or three drain plugs. Position the travel motor so that one plug is set at 6 o’clock, and another plug is set at either 3 or 9 o’clock.
Step Two
Be sure to clean the drain plugs and the adjacent areas from any dirt or debris that may be present. Again, being cautious of potential pressure hazards, gradually loosen the 6 o’clock-position plug.
Be sure to place a basin or pan underneath this plug to capture the oil as it drains. Also, you can loosen the plug at 3 or 9 o’clock to help vent the oil. Remember, a few hammer strikes can help you loosen stubborn plugs.
StepThree
Use this opportunity to inspect the old oil for metal flakes. The presence of flakes or other contaminants can call for a round of troubleshooting.
At the same time, check the main hub mechanical seal—located between the sprocket and track frame—for leaks.
Step Four
To add new oil, position the plug openings at 12 o’clock and either the 3 or 9 o’clock positions. Using the 12 o’clock opening, pour in the new oil until it just begins to drain out of the 3 or 9 o’clock opening. Tighten the loose plugs, and you’re good to go.

Top Selections from Mini Final Drives
MiniFinalDrives.com is nationally recognized for its responsive service and ultra-fast shipping. This customer-centered approach includes a Lifetime Replacement program that automatically comes with your motor purchase. Enjoy the protection of a two-year, unlimited-hour warranty and a lifetime 15% discount.
You’ll discover a complete selection of new aftermarket and OEM-equivalent final drives and travel motors from top brands, including:
  • Bobcat
  • Caterpillar
  • Hitach
  • John Deer
  • Komats
  • Kubot
  • Takeuch
  • And more
When you’re looking for a top-quality final drive motor, turn to Mini Final Drives. Browse our selection at http://www.minifinaldrives.com today!

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  • MiniFinalDrives.com, owned and operated by L&M HydraComm LLC, is an independent aftermarket distributor and it is not affiliated with any compact equipment manufacturer. Manufacturers' trademarked names, models, part numbers, symbols, and related descriptions are provided for reference only to help you with finding the right aftermarket replacement final drive for your machine. This reference information does not imply that any items for sale are the product of those referenced manufacturers and does not imply that L&M HydraComm LLC is an authorized source nor agent of the referenced machine manufacturers.