How to Jack Up Tandem Boat Trailer: Master the Technique with These Pro Tips

Whether you’re preparing for winter storage, performing maintenance, or simply need to access the underside of your boat, knowing how to jack up a tandem boat trailer safely and efficiently is crucial. This guide will equip you with the knowledge and steps to confidently lift your boat and trailer, ensuring a smooth and secure process.

Understanding the Basics: Equipment and Safety

Before diving into the jacking process, let’s familiarize ourselves with the essential equipment and safety precautions:

• Jacks: Invest in a pair of high-quality trailer jacks that are rated for the weight of your boat and trailer.
• Wheel Chocks: These are vital for preventing the trailer from rolling while the boat is elevated.
• Leveling Blocks: Use leveling blocks to ensure the trailer remains stable and prevent uneven lifting.
• Safety Glasses: Protect your eyes from debris and potential hazards.
• Work Gloves: Provide grip and protect your hands.
• Clear Workspace: Ensure a clear area around the trailer for safe maneuvering.

Step-by-Step Guide: Jacking Up Your Tandem Boat Trailer

1. Secure the Trailer:

• Park on a Level Surface: Choose a flat, level area with firm ground.
• Engage the Parking Brake: Ensure the trailer’s parking brake is firmly engaged.
• Place Wheel Chocks: Position wheel chocks behind and in front of the trailer tires for added stability.

2. Identify Jacking Points:

• Locate the Jacking Points: Most tandem trailers have jacking points marked on the frame. These points are designed to handle the weight of the boat.
• Inspect for Corrosion: Ensure the jacking points are free of rust or corrosion.

3. Prepare the Jacks:

• Position the Jacks: Place the jacks directly beneath the jacking points.
• Adjust the Height: Adjust the jacks to a height that allows for a safe and stable lift.

4. Lifting the Trailer:

• Start with the Rear Jack: Begin by lifting the rear jack slowly and evenly.
• Lift the Front Jack: Once the rear jack has lifted the trailer slightly, lift the front jack.
• Maintain Even Lifting: Continue lifting both jacks simultaneously to ensure the trailer remains level.
• Check for Stability: Periodically check the trailer’s stability as you lift.

5. Reaching the Desired Height:

• Lift to the Required Height: Raise the trailer to the desired height for your task.
• Use Leveling Blocks: If necessary, use leveling blocks under the trailer’s tires to ensure stability.

6. Lowering the Trailer:

• Lowering the Jacks: Lower the jacks slowly and evenly, maintaining the trailer’s stability.
• Remove Wheel Chocks: Once the trailer is safely on the ground, remove the wheel chocks.

7. Double-Check Stability:

• Final Inspection: Ensure the trailer is securely on the ground and stable before proceeding with your task.

Important Considerations:

• Weight Distribution: Pay close attention to the weight distribution of your boat. Ensure the jacking points can handle the load.
• Jack Capacity: Use jacks with a capacity that exceeds the weight of your boat and trailer.
• Safety First: Never work under a raised trailer without proper support and safety precautions.

Alternative Lifting Methods:

• Hydraulic Jacks: For heavier boats, consider using hydraulic jacks.
• Lifting Straps: Some trailers come equipped with lifting straps that allow for easier lifting.

Beyond Jacking: Essential Maintenance Tips

• Regular Inspections: Inspect your trailer regularly for any damage or wear.
• Lubricate Moving Parts: Lubricate the trailer’s moving parts, such as the winch and bearings.
• Check Tires: Ensure the trailer’s tires are properly inflated.

The Final Step: Secure and Store

• Lower the Trailer: Carefully lower the trailer to the ground after completing your task.
• Secure the Boat: Secure the boat to the trailer with tie-downs.
• Store Properly: Store the trailer in a dry, secure location.

Common Questions and Answers

1. What if my trailer doesn‘t have jacking points?

If your trailer lacks designated jacking points, you can use a sturdy piece of wood or a jack stand to distribute the weight evenly. However, it’s crucial to ensure the wood or stand is strong enough to support the load.

2. How often should I inspect my trailer?

It’s recommended to inspect your trailer at least once a month, or before each launch. This includes checking the tires, lights, brakes, and overall structure.

3. How do I know if my trailer’s tires are properly inflated?

The recommended tire pressure for your trailer is usually found on the sidewall of the tire. However, it’s always a good idea to consult your owner’s manual for specific recommendations.

4. What are some signs of a problem with my trailer’s bearings?

Signs of a problem with your trailer’s bearings include:

• Excessive heat: If the bearings are overheated, it can lead to premature wear and failure.
• Noise: Loud noises or grinding sounds while towing could indicate a bearing problem.
• Loose wheels: If the wheels feel loose, it could be a sign of a bearing issue.

5. What should I do if I encounter a problem while jacking up my trailer?

If you encounter a problem while jacking up your trailer, stop immediately. Assess the situation and determine the cause of the issue. If you’re unsure how to proceed, contact a qualified mechanic or trailer repair specialist.