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When a final drive starts acting up, the instinct is to jump straight to "I need a new one." Sometimes that's true. Often it isn't. A weak charge pump, a clogged case drain filter, tracks set too tight, or a machine stuck in high-speed mode can all mimic final drive failure perfectly. And if you replace the drive without finding the real cause, you'll be back in the same spot in a few hundred hours, except now you're out the cost of a motor too.

This guide pulls together everything we've learned diagnosing final drives at ºÚÁÏÉç. From the questions to ask before you even open a toolbox, to symptom-by-symptom troubleshooting, to the tests our techs actually run in the shop, you can find information here. Whether you're running a single skid steer or managing a fleet, the goal is the same: figure out what's really wrong before you spend a dollar fixing it.

Think final drive motors don’t need maintenance? Think again! While they’re built to last, ignoring routine care can lead to big problems down the road—like leaks, breakdowns, or even total failure. The good news? A little maintenance goes a long way in keeping your equipment running smoothly, saving you time and money.

In this post, we’re busting common myths about final drive motors and sharing simple tips to keep them in top shape. Let’s dive in and set the record straight!

Here are a few other blog posts that might interest you:

• Final Drive Motor Maintenance: Key Practices to Extend Equipment Life
• Catastrophic Failure: Why Gear Oil Maintenance is So Important
• Hydraulic System Health: Preventive Maintenance for Compact Equipment

1. Myth: Final Drive Motors Are Completely Maintenance-Free

Reality: While final drive motors are durable, they must be regularly maintained. Maintenance includes: 

• Checking and changing the gear oil
• Cleaning the undercarriage and around the final drive
• Fluid analysis

Besides the obvious benefits of maintenance, it also ensures the life of your final drive, enhances efficiency, and helps promote excellent performance. If you don’t want to be stranded with a compact machine that won’t move or have to pay costly repair or replacement costs for your final drive, maintain your final drive motors. Neglecting maintenance can lead to decreased machine performance, increased fuel consumption, and even total machine failure.

Did you know you can invalidate the warranty of your final drive motor if you make the mistake of dry starting it after you’ve just installed it? Read on to learn what a dry start it, how it can damage your motor, and how to keep it from happening to you.

Here are a few additional posts you might be interested in ...

• 5 Ways to Void Your Final Drive Warranty
• How to Check and Change Your Gear Oil
• Tips for Installing a Final Drive

Your mini excavator is the key piece of equipment in a major project with a very fussy client. Everything is going according to schedule, and it looks like there will be no problem in meeting the deadline coming up in just two days. That is, until something whizzes by you while you're inspecting some recent work on site. You rush over there to take a look at what flew by and recognize it as the cover plate off the travel motor on your excavator. Your worst nightmare about final drives and travel motors has just come to life.

Here are a few other posts you might find of interest ...

• Preventing Case Drain Related Failure on Final Drives
• Bobcat 337 Final Drive Failures
• Cam Ring Failure in a Final Drive

As we've talked about before in Part 1 of this series, there are some really good lessons we can learn from superheroes, and maybe some really bad ones, too (we’re looking at you, Deadpool).  We can learn some pretty good lessons about final drives, too.  For Part 2, we are going to take a look at lessons from Batman, Huntress, and Thor! (Trigger warning:  this article may upset diehard comics fans!)

Sometimes people assume that there is no need to add hydraulic fluid to a hydraulic motor before it is installed because the fluid circulates through the system. This is incorrect, and the dry start that results in can seriously damage your hydraulic motor. In this ºÚÁÏÉç post, we are going to discuss why this assumption is incorrect, what kind of damage can result, and what you need to do in order to prevent a dry start.

We know that final drive motors aren’t cheap, and any downtime with your machine is costly. You want to get your replacement final drive installed as quickly and painlessly as possible, and avoid future problems that might come as a result of a poor installation. Here are some tips for installing a final drive with just those goals in mind.

One of the common questions we get asked is this: why is my final drive spinning backwards? In this ºÚÁÏÉç post, we'll talk about why final drives spin the wrong direction and some different approaches on how to fix the problem. This information holds regardless of whether it's on an excavator, skid steer loader, or compact track loader.