Greasing Dexter trailer axles is crucial for maintaining the longevity and smooth operation of your trailer. Proper lubrication reduces friction, prevents wear and tear, and ensures safe towing. This guide, backed by expert advice and practical tips, will walk you through the entire process, from identifying your axle type to selecting the right grease and mastering the lubrication technique.
Understanding the Importance of Axle Greasing
Regularly greasing your Dexter trailer axles is non-negotiable if you want to avoid costly repairs and dangerous situations on the road. Friction is the enemy of any mechanical system, and trailer axles are constantly subjected to significant stress and strain, especially when carrying heavy loads or traversing rough terrain. Without adequate lubrication, the internal components of your axle, such as bearings and seals, will rapidly deteriorate, leading to:
- Overheating: Excessive friction generates heat, potentially causing bearing failure and even tire blowouts.
- Premature Wear: Without lubrication, metal-on-metal contact accelerates wear and tear, shortening the lifespan of your axles.
- Reduced Fuel Efficiency: Increased friction requires more energy to overcome, resulting in poorer fuel economy.
- Safety Hazards: Bearing failure can lead to wheel lockup, making it difficult to control the trailer and increasing the risk of accidents.
Therefore, understanding how to properly grease your Dexter trailer axles is a vital aspect of trailer maintenance.
Identifying Your Dexter Axle Type
Before you even think about touching a grease gun, you need to identify the type of Dexter axle your trailer has. Different axles require different greasing procedures and may utilize different types of grease fittings. The two most common types of Dexter axles are:
- Standard Axles: These axles typically feature grease zerks (fittings) located on the wheel hub or at the end of the spindle. Greasing these axles usually involves manually pumping grease into the bearings.
- E-Z Lube Axles: Equipped with a grease fitting in the hub that connects directly to the bearings. These axles allow for easier greasing without disassembling the wheel. However, over-greasing E-Z Lube axles can push grease past the rear seal, potentially contaminating the brake linings.
To identify your axle type, visually inspect the hub area for the presence of a grease fitting. If you’re still unsure, consult your trailer’s owner’s manual or contact a qualified trailer mechanic. Correct identification is paramount to ensure you’re using the correct greasing method.
Gathering the Necessary Tools and Materials
Once you’ve identified your axle type, gather the following tools and materials:
- Grease Gun: A high-quality grease gun is essential for applying grease to the axle bearings. Choose one that is easy to use and provides consistent pressure.
- Grease: Select a high-quality, lithium-based or synthetic grease specifically designed for trailer axles. Avoid using multi-purpose greases, as they may not provide adequate protection under heavy loads and high temperatures. Consult your trailer’s owner’s manual for specific recommendations.
- Grease Fitting Coupler: A grease fitting coupler allows you to securely connect the grease gun to the grease fitting on the axle.
- Gloves: Wear gloves to protect your hands from grease and grime.
- Rags: Keep plenty of rags on hand for wiping up excess grease and cleaning your tools.
- Jack and Jack Stands: If you need to rotate the wheels while greasing (especially with standard axles), you’ll need a jack and jack stands to safely lift the trailer.
- Wrench or Socket Set: You may need a wrench or socket set to remove the hub cap (if applicable) or access the grease fitting.
- Wheel Bearing Packer (Optional): If you’re removing the wheel bearings for a thorough inspection and re-greasing, a wheel bearing packer can make the job easier and more efficient.
Step-by-Step Greasing Procedure
The specific greasing procedure will vary depending on your axle type. Here are detailed instructions for both standard and E-Z Lube axles:
Greasing Standard Axles
- Prepare the Trailer: Park the trailer on a level surface, chock the wheels, and engage the parking brake. If necessary, use a jack and jack stands to safely lift the trailer wheel off the ground, allowing it to rotate freely.
- Locate the Grease Fitting: The grease fitting is usually located on the wheel hub or at the end of the spindle.
- Clean the Grease Fitting: Use a rag to thoroughly clean the grease fitting to remove any dirt or debris.
- Attach the Grease Gun: Securely attach the grease gun to the grease fitting using the grease fitting coupler.
- Pump Grease: Slowly pump grease into the fitting until you see fresh grease emerging from the front or rear of the hub. Be careful not to over-grease, as this can damage the seals.
- Rotate the Wheel: If the wheel is lifted, rotate it while pumping grease to ensure even distribution of the lubricant.
- Wipe Excess Grease: Use a rag to wipe away any excess grease from the hub and grease fitting.
- Repeat: Repeat the process for each wheel.
Greasing E-Z Lube Axles
- Prepare the Trailer: Park the trailer on a level surface, chock the wheels, and engage the parking brake.
- Locate the Grease Fitting: The grease fitting is located on the hub.
- Clean the Grease Fitting: Use a rag to thoroughly clean the grease fitting to remove any dirt or debris.
- Attach the Grease Gun: Securely attach the grease gun to the grease fitting using the grease fitting coupler.
- Pump Grease Slowly: Slowly pump grease into the fitting while rotating the wheel. This helps distribute the grease evenly throughout the bearings.
- Observe Grease Purging: Continue pumping grease until fresh grease begins to purge from the front of the hub. This indicates that the bearings are adequately lubricated.
- Stop Immediately: Stop pumping grease immediately once you see fresh grease purging. Over-greasing E-Z Lube axles is a common mistake that can lead to seal damage and brake contamination.
- Wipe Excess Grease: Use a rag to wipe away any excess grease from the hub and grease fitting.
- Repeat: Repeat the process for each wheel.
Frequently Asked Questions (FAQs)
FAQ 1: How often should I grease my Dexter trailer axles?
The frequency of greasing depends on several factors, including the type of axle, the type of grease used, and the usage of the trailer. As a general rule, grease your axles every 3,000 miles or every 6 months, whichever comes first. If you frequently tow in harsh conditions (e.g., off-road, dusty environments, or through water), you may need to grease your axles more often.
FAQ 2: What type of grease should I use for my Dexter trailer axles?
Dexter recommends using a high-quality, lithium-based or synthetic grease specifically designed for trailer axles. These greases are formulated to withstand high temperatures and heavy loads. Avoid using multi-purpose greases, as they may not provide adequate protection. Check your trailer’s owner’s manual for specific recommendations.
FAQ 3: What happens if I over-grease my E-Z Lube axles?
Over-greasing E-Z Lube axles can push grease past the rear seal, contaminating the brake linings and reducing their effectiveness. It can also damage the seal itself, leading to grease leaks and bearing failure.
FAQ 4: How can I tell if my wheel bearings are failing?
Signs of failing wheel bearings include unusual noises (e.g., grinding, squealing, or rumbling), excessive wheel wobble, and heat buildup in the hub area. If you notice any of these symptoms, have your wheel bearings inspected and replaced as soon as possible.
FAQ 5: Can I use a different brand of grease fitting than the one that came with my axle?
Yes, you can use a different brand of grease fitting as long as it is the correct size and thread. However, it’s generally recommended to use the same type of fitting to ensure a proper seal and prevent leaks.
FAQ 6: Is it necessary to remove the wheels to grease the axles?
For E-Z Lube axles, removing the wheels is generally not necessary. However, for standard axles, removing the wheels may be required to access the grease fitting or to rotate the wheels while greasing.
FAQ 7: What is the difference between a bearing buddy and an E-Z Lube axle?
A Bearing Buddy is a spring-loaded device that maintains a slight positive pressure inside the wheel hub, helping to prevent water and contaminants from entering. An E-Z Lube axle is a type of axle that allows for easier greasing via a grease fitting in the hub. While both aim to protect the bearings, they use different mechanisms. Some trailers may utilize both.
FAQ 8: What should I do if I can’t get grease to flow into the fitting?
If you can’t get grease to flow into the fitting, try the following:
- Clean the fitting: Make sure the fitting is free of dirt and debris.
- Check the grease gun: Ensure the grease gun is properly loaded and working correctly.
- Try a different fitting: The fitting may be clogged or damaged.
- Rotate the wheel: Rotating the wheel may help align the bearings and allow grease to flow.
- Consult a professional: If you’ve tried everything else and still can’t get grease to flow, consult a qualified trailer mechanic.
FAQ 9: How do I clean the old grease off my axles?
Use a degreaser and a rag to thoroughly clean the old grease off your axles. You can also use a wire brush to remove stubborn deposits. Be sure to wear gloves and eye protection when working with degreasers.
FAQ 10: Should I repack my wheel bearings even if I have E-Z Lube axles?
While E-Z Lube axles make greasing easier, it is still recommended to periodically repack the wheel bearings, especially if you frequently tow in harsh conditions or suspect that the bearings are contaminated. Repacking involves removing the wheel bearings, cleaning them, inspecting them for damage, and then packing them with fresh grease.
FAQ 11: What happens if water gets into my wheel bearings?
Water can contaminate the grease and cause the bearings to rust and corrode, leading to premature failure. If you suspect that water has gotten into your wheel bearings, it’s essential to remove them, clean them, and repack them with fresh grease.
FAQ 12: Where can I find a diagram of Dexter trailer axles?
You can find diagrams of Dexter trailer axles on the Dexter website (dexteraxle.com) or in your trailer’s owner’s manual. These diagrams can be helpful for identifying the different components of your axle and understanding how they work.
By following these guidelines and paying attention to the specific needs of your Dexter trailer axles, you can ensure a safe and reliable towing experience for years to come. Remember, preventative maintenance is always cheaper than costly repairs.