Introduction
This instruction manual provides essential information for the safe and effective use, installation, and maintenance of your Bastion Distribution Top-Wind A-Frame Trailer Jack with Rectangular Footpad. Please read this manual thoroughly before installation and operation to ensure proper function and safety.
Safety Information
Always prioritize safety when working with heavy equipment. Failure to follow these instructions may result in property damage, serious injury, or death.
- Load Capacity: Do not exceed the stated 5000 lb load capacity of this jack. Overloading can cause failure and severe injury.
- Stable Surface: Always operate the jack on a firm, level surface. Uneven or soft ground can cause the trailer to shift or tip.
- Chock Wheels: Before operating the jack, ensure the trailer wheels are properly chocked to prevent unintended movement.
- Clear Area: Keep hands, feet, and clothing clear of moving parts during operation.
- Not for Lifting People: This jack is designed for lifting and supporting trailers only. Never use it to lift or support people.
- Regular Inspection: Inspect the jack for damage, wear, or corrosion before each use. Do not use if any components are compromised.
- Proper Installation: Ensure the jack is securely bolted to the trailer frame according to the installation instructions.
Product Overview
The Bastion Distribution Top-Wind A-Frame Trailer Jack is designed for reliable lifting and stabilization of trailers, RVs, campers, and boats. It features a robust construction and a pre-mounted footpad for enhanced stability.
Key Features:
- Heavy-Duty 5000 lb Capacity: Supports up to 5000 lbs in a stationary position.
- Pre-Mounted Rectangular Footpad: Provides added ground contact and stability.
- Smooth 14.8" Travel Range: Offers nearly 15 inches of vertical lift for leveling and hitching.
- Durable Powder-Coated Steel Construction: Corrosion-resistant alloy steel with a weather-resistant finish.
Components Included:
- Top-Wind Jack
- Rectangular Footpad (pre-mounted)

Image: The complete Bastion Distribution Top-Wind A-Frame Trailer Jack with its pre-mounted rectangular footpad.

Image: Close-up view of the manual top-wind crank mechanism on the trailer jack.

Image: Illustration showing the 14.8-inch travel range of the trailer jack.
Setup and Installation
This A-frame trailer jack is designed for bolt-on installation to the tongue of your trailer. Ensure you have appropriate hardware (not included) and tools before beginning.
- Prepare the Trailer: Park the trailer on a firm, level surface. Chock the wheels to prevent any movement. If replacing an existing jack, support the trailer tongue with a separate jack stand or block before removing the old jack.
- Position the Jack: Align the mounting plate of the new Bastion Distribution jack with the existing bolt holes on your trailer's A-frame tongue. The top-wind handle should be positioned for easy access and operation.
- Secure with Hardware: Insert appropriate bolts (typically 3/8" or 1/2" diameter, depending on trailer frame) through the mounting holes of the jack and the trailer frame. Secure with washers and nuts.
- Tighten Fasteners: Gradually tighten all bolts evenly to ensure a secure and stable connection. Do not overtighten, but ensure there is no play in the mounting.
- Verify Stability: Once installed, slowly lower the trailer onto the new jack and remove any temporary supports. Test the jack's stability by gently rocking the trailer.

Image: Close-up of the alloy steel mounting plate, highlighting its corrosion-resistant construction, ready for bolt-on installation.
Operating Instructions
The Bastion Distribution Top-Wind A-Frame Trailer Jack is operated manually using its crank handle.
- Lowering the Jack: To lower the jack and raise the trailer tongue, turn the crank handle clockwise. Continue turning until the desired height is achieved or the jack's travel limit is reached.
- Raising the Jack: To raise the jack and lower the trailer tongue, turn the crank handle counter-clockwise. Continue turning until the desired height is achieved or the jack is fully retracted.
- Using the Footpad: The pre-mounted rectangular footpad provides a stable base. Ensure it is on a solid, level surface before applying load. The footpad helps distribute weight and prevents sinking into soft ground.
- Hitching/Unhitching: Use the jack to raise or lower the trailer tongue to align with your vehicle's hitch ball. Once hitched, fully retract the jack before towing. When unhitching, extend the jack to support the trailer tongue before disconnecting from the tow vehicle.

Image: Close-up view of the rectangular footpad, designed for enhanced ground contact and stability.
Maintenance
Regular maintenance will extend the life and ensure the safe operation of your trailer jack.
- Lubrication: Periodically apply a multi-purpose grease to the internal screw mechanism and moving parts of the jack. This can be done by fully extending and retracting the jack while applying lubricant to the exposed shaft.
- Cleaning: Keep the jack clean from dirt, mud, and debris. A damp cloth can be used for general cleaning. Avoid harsh chemicals that may damage the powder-coated finish.
- Inspection: Before each use, visually inspect the entire jack for signs of damage, such as bends, cracks, excessive wear, or corrosion. Pay close attention to the mounting points, crank handle, and footpad.
- Hardware Check: Ensure all mounting bolts remain tight. Re-tighten if any looseness is detected.
Troubleshooting
If you encounter issues with your trailer jack, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Jack is difficult to crank. | Lack of lubrication; internal mechanism dirty or corroded; bent shaft. | Apply multi-purpose grease to the screw mechanism. Clean any debris. If bent, the jack may need replacement. |
| Jack does not hold position. | Internal mechanism failure; excessive load. | Ensure load does not exceed 5000 lbs. If mechanism is failing, replace the jack. |
| Trailer unstable when jacked. | Uneven or soft ground; improper wheel chocking; loose mounting bolts. | Move trailer to a firm, level surface. Ensure wheels are securely chocked. Tighten all mounting bolts. |
Specifications
Detailed specifications for the Bastion Distribution Top-Wind A-Frame Trailer Jack:
| Specification | Value |
|---|---|
| Load Capacity | 5000 Pounds |
| Maximum Lifting Height | 14.8 Inches |
| Brand | Bastion Distribution |
| Color | Black & Silver |
| Item Dimensions (L x W x H) | 22 x 8 x 5 inches |
| Style | Top-Wind Trailer Jack With A Rectangular Footpad |
| OEM Part Number / Model Number | BJ-5000TW-1 / RFP |
| Item Weight | 11 pounds |
| Automotive Fit Type | Universal Fit |
Warranty and Support
Your Bastion Distribution Top-Wind A-Frame Trailer Jack is backed by a 6-Month Warranty.
For warranty claims, technical assistance, or any questions regarding your product, please contact Bastion Distribution's U.S.-based customer service. Refer to the product packaging or the official Bastion Distribution website for current contact information.
For more information, visit the Bastion Distribution Store on Amazon.



