Kubota RTV 900 Rear Axle Install Guide
Hey there, fellow Kubota RTV 900 owners! So, you're diving into the nitty-gritty of installing the rear axle on your Kubota RTV 900, huh? Don't sweat it, guys! We're going to walk through this together, step-by-step. Whether you're replacing a worn-out part or just doing some routine maintenance, getting this done right is crucial for keeping your trusty RTV running smoothly on the farm, trails, or wherever your adventures take you. This isn't some super complicated, dealership-only job. With a little patience and the right approach, you can totally tackle this yourself. We'll cover everything from gathering your tools to the final tightening, so you can get back to putting that awesome RTV to work.
Preparation is Key: Tools and Parts for Your RTV 900 Rear Axle
Alright, before we even think about touching that Kubota RTV 900 rear axle, let's talk prep. Just like any good DIY project, having everything you need laid out and ready to go makes a world of difference. First off, let's gather our tools. You're likely going to need a decent socket set, probably with both metric and standard sizes, as these machines can be a mix. Don't forget a torque wrench – this is super important for ensuring everything is tightened to spec, which prevents future problems. You'll also want some wrenches, maybe a breaker bar for those stubborn bolts, and a good set of pliers. Safety first, always! Make sure you have sturdy jack stands, gloves, and eye protection. A good creeper can save your back, too.
Now, onto the parts. You've obviously got your new or refurbished Kubota RTV 900 rear axle. Make sure it's the correct part number for your specific RTV model year. It's also a smart idea to inspect the new axle before you even start. Check for any damage from shipping, ensure all the mounting points are clean, and maybe even grease up any bearings or seals that come dry. While you're at it, consider replacing other wear items that are easily accessible during this job. Things like axle seals, bearings, and even the U-joints if they're part of the axle assembly and show any signs of wear. Sometimes, it's cheaper and easier to do it all at once than to pull the axle back out again down the road. Grab some fresh threadlocker and maybe a new cotter pin or two if your setup uses them. Having a good quality penetrating oil can also be a lifesaver for loosening rusty bolts.
Safely Lifting and Supporting Your RTV 900
Okay, safety first, always! Before we even think about installing the rear axle on your Kubota RTV 900, we need to get that machine safely off the ground. You're going to want to find a nice, flat, level surface. Trying to do this on an incline is a recipe for disaster, guys. Use your jack to lift the rear of the RTV high enough so you can comfortably work underneath it, and more importantly, so you can slide the new axle into place. Once it's lifted, immediately place sturdy jack stands under the frame or designated support points. Never rely solely on the jack. Give the RTV a good shake to make sure it's stable on the stands before you get under there. You don't want any surprises! Ensure the parking brake is firmly engaged, and if you have wheel chocks, use them on the front wheels for extra security. If you're working in a garage, make sure the space is well-ventilated. We're dealing with machinery here, and safety is paramount.
Once the RTV is securely supported, take a moment to orient yourself. Look at how the existing axle is mounted. Note the position of any brake components, driveshafts, or suspension linkages that connect to it. Taking some quick photos with your phone can be a lifesaver when it comes time for reassembly. It's like having a cheat sheet right there! Think about how much space you'll need to maneuver the new axle into position. Sometimes, you might need to slightly adjust the height of the jack stands or reposition the jack to gain that extra inch or two of clearance. Remember, a stable and secure workspace is fundamental to a successful and safe rear axle installation on your Kubota RTV 900.
Removing the Old Rear Axle: The First Big Step
Now for the main event – getting that old Kubota RTV 900 rear axle out. This is where the real work begins. Start by disconnecting anything that's attached to the axle assembly but not part of it. This usually includes brake lines, parking brake cables, and potentially shock absorbers or suspension components. Be prepared for some brake fluid to potentially leak out, so have a catch pan ready. If you're disconnecting brake lines, you might want to cap them off temporarily to minimize fluid loss and prevent contamination.
Next, you'll need to disconnect the driveshaft(s) that connect to the rear differential. These are typically held in place with bolts or U-joint clamps. Again, penetrating oil can be your best friend here if things are rusty or seized. Take note of how the driveshaft is oriented before you remove it. Sometimes there are alignment marks, or you might need to ensure it goes back in the same way to avoid driveshaft imbalance issues. Once the driveshaft is free, you can usually let it hang or support it out of the way. Now, focus on the axle housing itself. It will likely be bolted to the RTV's frame or suspension components. These bolts can be tight, so use your breaker bar if needed.
As you loosen these mounting bolts, you might want to have a helper nearby, or at least be prepared for the weight of the axle. Axles can be surprisingly heavy and awkward to handle. Sometimes, they might be held in place by gravity or a single tricky bolt, so be ready to support it as the last bolt comes free. Slowly and carefully maneuver the old axle out from underneath the RTV. If it seems stuck, double-check that you haven't missed any connections or bolts. Don't force it. Work it gently, wiggling it to free it from any rust or debris. Removing the old rear axle is often the most physically demanding part, so take your time and ensure you're doing it safely.
Installing the New Kubota RTV 900 Rear Axle: Precision Matters
With the old axle out, it's time to get the new Kubota RTV 900 rear axle into position. This is where that preparation and clearance we talked about really pays off. You'll likely need to maneuver the new axle into place from underneath the RTV. If it's heavy, don't be afraid to use a floor jack or even a transmission jack to help lift and align it. You might need a helper to guide it into place while you control the lift.
Carefully align the mounting holes on the new axle with the corresponding holes on the RTV's frame or suspension. This can sometimes be the trickiest part, especially if there's any slight misalignment due to rust or new parts. Gently wiggle and adjust the axle until the bolts can be started by hand. Starting all the mounting bolts by hand is crucial. This ensures you're not cross-threading anything, which would be a major headache. Once all the bolts are started, begin tightening them gradually and evenly. Don't just crank down one bolt fully; work in a star pattern, tightening each bolt a little at a time, similar to how you'd tighten lug nuts on a wheel.
Once the axle is securely mounted, it's time to reattach the components you disconnected earlier. This includes the driveshaft(s), brake lines, and any cables or linkages. Pay close attention to the driveshaft connection. Ensure it's properly seated and aligned, and tighten its bolts or clamps to the manufacturer's specifications. If you disconnected brake lines, reconnect them and be prepared to bleed the brakes afterward to remove any air that may have entered the system. Installing the new rear axle requires patience and precision. Double-check every connection and bolt. It’s better to take an extra minute now than to have to take it all apart again.
Final Checks and Torque Specifications: Ensuring Longevity
We're almost there, guys! The final stretch of installing your Kubota RTV 900 rear axle involves making sure everything is tightened correctly and reconnected properly. This is where your torque wrench becomes your best friend. Refer to your Kubota RTV 900 service manual for the exact torque specifications for all the bolts you removed and reinstalled. Proper torque is critical for the longevity and safety of your machine. Overtightening can strip threads or crack components, while undertightening can lead to parts vibrating loose over time.
Go back over every single bolt and nut you touched. Use your torque wrench to confirm they are all torqued to spec. This includes the axle mounting bolts, driveshaft bolts, and any suspension components you might have disconnected. Once everything is torqued, reconnect any electrical connectors, brake lines, or cables. If you bled your brakes, ensure the pedal feels firm and there are no leaks. Give the new axle a good visual inspection. Look for any grease leaks, loose connections, or anything that just doesn't look right. Spin the axle by hand (if possible and safe to do so) to ensure it moves freely without binding or unusual noises.
After you've done all your checks, carefully lower the RTV 900 back down to the ground. Remove the jack stands and wheel chocks. Take it for a short, slow test drive in a safe area. Listen for any strange noises, feel for any vibrations, and check the braking performance. If everything feels and sounds good, you've successfully completed the Kubota RTV 900 rear axle installation! Congratulations! It's a rewarding feeling to tackle a job like this yourself. Remember to periodically check these areas during your regular maintenance to ensure everything stays tight and secure. Happy trails!
