Unhooking a 5th wheel trailer, while seemingly complex, is a manageable task when approached methodically. It involves a series of sequential steps, ensuring the trailer is stable, the hitch is disengaged, and all connections are safely detached before driving away.
Understanding the Essentials: Why Unhooking Properly Matters
Unhooking a 5th wheel improperly can lead to serious damage, injury, or even a runaway trailer. A rushed or careless approach can compromise the trailer’s stability, damage the hitch mechanism, or leave electrical and plumbing connections vulnerable. Therefore, understanding the proper procedure and prioritizing safety are paramount. It’s crucial to develop a consistent, repeatable process to avoid mistakes. Always refer to your manufacturer’s manual for trailer-specific instructions as there may be slight variations depending on the model.
The Step-by-Step Unhooking Procedure: A Detailed Breakdown
Following these steps, in order, will ensure a safe and successful unhooking:
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Leveling and Stabilization: The first priority is ensuring the trailer is perfectly level, both front to back and side to side. Use leveling blocks under the wheels as needed. Once level, deploy the stabilizer jacks. These jacks are designed to minimize rocking and movement, providing a solid foundation. Don’t rely solely on the stabilizers to lift the trailer; they are intended for stability, not for raising the entire unit.
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Disconnecting Utilities: Begin by disconnecting all external utilities. This includes:
- Shore Power: Turn off the breaker at the power pedestal before unplugging the cable from both the pedestal and the trailer. Store the cable securely.
- Water Hose: Turn off the water supply at the spigot before disconnecting the hose. Drain the hose and store it properly.
- Sewer Hose (if applicable): Disconnect the sewer hose and thoroughly clean it. Store it in a designated compartment.
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Chocking the Wheels: Double-check that wheel chocks are securely in place behind the tires to prevent any unexpected movement during the unhooking process. Chocks are a vital safety measure and should never be omitted.
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Raising the Landing Gear: Activate the electric landing gear motor to raise the trailer. This process transfers the weight of the trailer from the hitch in the truck bed to the landing gear. Raise the trailer high enough to clear the truck bed and allow ample space for the hitch to disengage. It’s a good practice to observe the clearance between the truck bed and the trailer as you raise the landing gear.
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Unlatching the Hitch: Locate the handle that releases the hitch locking mechanism. This handle is usually near the kingpin. Pull the handle to the open position. Some hitches have a safety pin or locking device that needs to be removed before the handle can be operated.
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Visual Inspection: Before moving the truck, perform a thorough visual inspection. Ensure the hitch is fully released and the landing gear is supporting the trailer’s weight securely. Double-check all utility connections are disconnected and stored away.
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Pulling Away: Slowly and carefully drive the truck forward and away from the trailer. Watch carefully to ensure the hitch clears the kingpin. Have someone spot you if possible to help guide you.
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Lowering the Landing Gear (Optional): Once the truck is clear, you can lower the landing gear to a convenient height for future hookups. This will make the process easier when you return.
Common Mistakes to Avoid
Several common mistakes can occur when unhooking a 5th wheel, leading to potentially dangerous situations.
- Forgetting to Chock the Wheels: This is a fundamental safety measure that is often overlooked, especially by experienced RVers who become complacent.
- Rushing the Process: Impatience can lead to errors. Take your time and follow each step meticulously.
- Failing to Visually Inspect: A thorough visual inspection is crucial to identify any potential issues before moving the truck.
- Not Leveling the Trailer: An unlevel trailer can be unstable, making the unhooking process more difficult and dangerous.
- Over-Reliance on Stabilizers: Stabilizer jacks are not designed to lift the entire trailer. Using them improperly can damage the jacks or the trailer’s frame.
Frequently Asked Questions (FAQs)
Here are some frequently asked questions about unhooking a 5th wheel trailer:
FAQ 1: How do I know if my 5th wheel is level enough?
Use a bubble level or a digital level placed inside the trailer, preferably on a flat surface like the refrigerator floor. Adjust the leveling blocks until the bubble is centered or the digital level reads zero degrees.
FAQ 2: What if my landing gear doesn’t work?
If your electric landing gear fails, you can usually manually crank the landing gear using a hand crank. Refer to your owner’s manual for the location of the manual crank point. Always carry the appropriate tools for manual operation.
FAQ 3: How high should I raise the landing gear before unhitching?
Raise the landing gear high enough so that the truck bed has ample clearance to move freely from under the 5th wheel hitch. A minimum clearance of several inches is recommended.
FAQ 4: What do I do if the hitch is stuck?
If the hitch is stuck, try rocking the truck slightly forward and backward. This may help to release any binding. Ensure the locking jaws are fully open. If still stuck, consult a professional RV technician.
FAQ 5: How often should I lubricate my 5th wheel hitch?
Lubricate your 5th wheel hitch regularly, ideally before each trip or at least monthly, using a grease recommended by the hitch manufacturer. This ensures smooth operation and prevents wear.
FAQ 6: What type of chocks are best for a 5th wheel?
Heavy-duty rubber or plastic wheel chocks are recommended. Consider using two chocks per wheel for added security, especially on inclines. X-chocks placed between tandem wheels provide additional stability.
FAQ 7: Can I unhook my 5th wheel on a slight incline?
It’s highly recommended to avoid unhooking on an incline. If it’s unavoidable, take extra precautions, using additional chocks and ensuring the trailer is stable. Be aware that any incline greatly increases the risk of runaway.
FAQ 8: What is the purpose of a kingpin stabilizer?
A kingpin stabilizer (or tripod) provides additional support to the front of the trailer, reducing movement and rocking, particularly when the trailer is occupied. It’s especially useful for longer stays.
FAQ 9: What happens if I forget to disconnect the electrical cord?
Forgetting to disconnect the electrical cord can result in damage to the cord, the electrical system of the trailer, or the power pedestal. It’s a dangerous and costly mistake.
FAQ 10: Should I cover my kingpin when the trailer is unhooked?
Yes, covering the kingpin with a protective cap is highly recommended. This prevents dirt, debris, and moisture from entering the hitch mechanism and causing corrosion.
FAQ 11: What if my trailer starts to move while I’m unhooking?
If your trailer starts to move during the unhooking process, immediately stop what you’re doing and reassess the situation. Ensure the chocks are properly placed and the stabilizer jacks are firmly planted. Add more chocks if necessary.
FAQ 12: Where can I find the owner’s manual for my 5th wheel hitch?
The owner’s manual for your 5th wheel hitch should have been provided when you purchased the hitch or the trailer. You can often find a digital copy on the manufacturer’s website by searching for the hitch model number.
By following these steps and heeding the advice in this guide, you can confidently and safely unhook your 5th wheel trailer, ensuring a smooth and enjoyable RV experience. Remember, safety first!