How to Drain and Replace Hub Oil on a Polaris Sportsman 4x4 ATV

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Full Polaris Hilliard Clutch Hub Service Manual Download - http://www.nogripes.com/ng/2019/11/po...

In this video, I walk you through to drain and replace the hub oil on a 2003 Polaris Sportsman 500 H.O. I assume the process would be the same or similar to other Polaris 4x4 ATVs. I'll be adding this video and others to a Polaris Sportsman ATV repair guide playlist.

I've owned a 2003 Polaris sportsman 4-wheeler for many years and I've always had good luck with it. Like any ATV, regular maintenance is required in order to keep it running properly. Many people in ATV forums express their dissatisfaction with the Polaris Sportsman 4-wheel drive system. Polaris has a unique system in place to provide 4-wheel drive when needed. This allows better control of the ATV when the 4wd system is engaged over ATVs that have locking hubs. The front-drive system permits the vehicle to be driven by the rear wheels as long as the front wheels rotate faster than the front-drive axles. If the rotational speed of the front wheels slows to less than the speed of the rear-drive axles, the front wheel hub s engage. Each front hub has an electrical engagement control and is referred to as a Hilliard clutch. I will admit that the electrical wires that Polaris uses to power the Hilliard clutch hubs are extremely thin and somewhat susceptible to failure over time.  The instructions below outline steps that can be used to troubleshoot and maintain the Polaris Sportsman front wheel hubs that are used in the 4-wheel drive system. The Polaris Sportsman front wheel hub service and repair manual should be followed carefully and the process should be carried out by a trained technician.

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Due to factors beyond the control of Mark Jenkins, I cannot guarantee against improper use or unauthorized modifications of this information. Mark Jenkins assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Mark Jenkins recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of Mark Jenkins, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Mark Jenkins.