Umair Gaines
Electric tongue jacks are used to raise and lower trailers. Over time, these jacks can start to make noise and appear strained. To prevent this, it is important to periodically lubricate the jack. The lubrication process can vary depending on the jack model and manufacturer. For example, Lippert recommends that users only lube the exposed leg of the jack with silicon spray, while the rest of the parts are lubed internally. Other models, like the Ultra-Fab Electric A-Frame Jack, require grease to be applied to the jackscrew and gears.
Characteristics and Values of Lubricating an Electric Tongue Jack
| Characteristics | Values |
|---|---|
| Jack Screw Lubrication | Turn the jack over and apply lube |
| Grease Fitting | Extend the jack to align with the hole in the outer tube |
| Amount of Grease | Two pumps from a standard grease gun |
| Gear Lubrication | Remove the fuse and gear cover, expose the gears, lubricate, and reinstall the cover |
| Jack Leg | Keep free of dirt and lube with silicon spray |
| Rain Protection | Cover the jack to protect it from rain |
| Lube Frequency | Lubricate periodically, especially if making noise or straining |
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What You'll Learn
How much lube to use
When lubricating an electric tongue jack, it is important not to use too much lubricant. A small amount of lubricant will go a long way and too much can result in a mess. The excess lubricant will collect in a puddle on the ground or pad where the jack leg sits.
To lubricate the jack screw, simply turn over the electric tongue jack and apply a small amount of lubricant. You can also place the tip of a gear oil bottle into a hole in the jack tube and give it a small shot of lube near the top of the screw, allowing it to work its way down over time.
For general maintenance, the Lippert Service Manual for the Lippert Electric Trailer Jack # LC285318 recommends that, before each use, you inspect the Power Tongue Jack and replace it if it is bent or damaged. It is also important to keep the mounting bolts free of corrosion and to clean the leg with a light coat of silicone spray lubricant once a year.
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Lube application methods
To lubricate an electric tongue jack, you can use a variety of methods and substances depending on the jack's manufacturer and model.
One method is to use a grease gun to apply grease to the jack's gears and screw. Firstly, extend the jack until the grease fitting is aligned with the hole in the outer tube. Then, apply grease with two pumps from the grease gun. To grease the gears, remove the fuse from the fuse holder and the gear cover using four Phillips-head screws. Grease the gears with chassis lube and then reinstall the cover.
Alternatively, if your jack has a hole in the jack tube, you can insert the tip of a gear oil bottle and apply a small amount of lube near the top of the screw. Ensure you do not use too much, as excess lube will puddle on the ground.
Additionally, it is important to keep the exposed leg of the jack free of dirt and lubricate it with silicon spray. Cover the power jack to protect it from rain.
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Lube type
Lubricating your electric tongue jack is essential for maintaining it properly. While some manufacturers claim that their electric tongue jacks are maintenance-free, many users advise lubricating the exposed leg of the jack periodically.
The type of lubricant you should use depends on the specific components of the jack that require lubrication. For instance, some recommend using wheel bearing grease on the gears and 90# gear oil on the "screw" or jack tube. This higher-viscosity gear oil is ideal for metal-on-metal applications and can withstand heavy loads and extreme pressures. However, it's important not to use too much gear oil, as excess lubricant can leak out and create a mess.
If you're unsure about the specific lubricant to use, it's always a good idea to consult the jack manufacturer's instructions or contact their customer support. For example, Lippert, a manufacturer of power jacks, advises that the only maintenance required for their jack is to ensure that the exposed leg is free of dirt and lubricated with silicon spray.
In addition to using the appropriate lubricant, it's crucial to protect your electric tongue jack from exposure to rain or moisture. Keeping your jack clean and dry will help prevent rust and corrosion, ensuring its longevity.
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Lube frequency
The frequency with which you should lubricate your electric tongue jack depends on a few factors, including the jack's condition, usage, and environment.
While there is no definitive answer provided in the sources, it is generally recommended to lubricate mechanical parts at least once a year as part of regular maintenance. However, if you use your jack frequently or in extreme conditions, such as cold temperatures or wet environments, you may need to increase the lubrication frequency.
Some signs that your electric tongue jack needs to be lubricated include noise and strain when raising or lowering the jack. If you notice these symptoms, it is best to lubricate the jack as soon as possible to prevent further damage.
To lubricate your electric tongue jack, you can use wheel bearing grease on the gears and gear oil on the screw. It is important not to over-lubricate, as this can lead to leakage. Make sure to cover and protect your jack from rain or moisture exposure as much as possible.
Additionally, regular cleaning and maintenance of your electric tongue jack are crucial. Keep the exposed leg of the jack free from dirt and grime, and follow the manufacturer's instructions for any specific care guidelines.
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Protecting the jack from rain
Protecting your electric tongue jack from rain is essential to ensure its longevity and optimal performance. Here are some detailed instructions and tips to achieve that:
Use a Cover:
Investing in a good-quality cover for your electric tongue jack is one of the best ways to protect it from rain and other elements. There are various options available on Amazon, such as the Camco EAZ-Lift Electric Tongue Jack Head Cover, which features three layers of water-resilient breathable material and an adjustable drawstring closure. This cover has received positive reviews for its effectiveness in shielding the jack from rain, wind, and sun. It's essential to choose a cover that's specifically designed for electric tongue jacks, ensuring a proper fit and adequate protection.
Waterproof and Breathable Materials:
When selecting a cover, opt for one made from waterproof or water-resilient materials. This will create a barrier that prevents rainwater from reaching the jack. Additionally, breathable materials are crucial to prevent condensation buildup underneath the cover, which can cause moisture-related issues. Some users have recommended using a vinyl drawstring bag from Amazon, an RV cover, or even a simple white hand towel to protect the jack from rain while allowing ventilation.
Consider Elastic Bands or Drawstrings:
Look for covers that feature elastic bands or adjustable drawstrings. These features help secure the cover in place, ensuring it doesn't blow away in strong winds while also providing a snug fit that better resists rainwater intrusion. The Boatee American Flag Eagle Trailer Jack Cover is an example of a product that utilizes an elastic band for a quick and secure installation.
Protect During Travel:
It's important to recognize that your electric tongue jack is exposed to rainwater not only when parked but also during travel. While some covers may not be suitable for high speeds or windy conditions, consider alternative solutions like a five-gallon bucket placed over the jack while driving. This can help shield the jack from rainwater intrusion, especially if you're unable to find a suitable cover that can be used while on the move.
Seal Potential Water Intrusion Points:
In some cases, rainwater can enter the electric tongue jack through specific points, such as the manual override hole on certain models. If possible, identify potential intrusion points and seal them appropriately. This may involve consulting the manufacturer's instructions or seeking advice from experienced users to understand the vulnerable areas of your particular jack model.
By following these instructions and tips, you can effectively protect your electric tongue jack from rainwater damage, ensuring its longevity and maintaining its performance for years to come.
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Frequently asked questions
It is recommended to lubricate your electric tongue jack periodically to maintain it properly.
You can use wheel bearing grease on the gears and some 90# gear oil on the screw.
First, extend the jack until the grease fitting is aligned with the hole in the outer tube. Then, apply grease with two pumps from a standard grease gun.
