Bulldog 5,000 lbs. Round A‑Frame Trailer Jack Topwind 15" Lift Zinc
Model: 1750290301BULLDOG round jacks are recognized as the industry standard by leading agricultural, commercial, horse, livestock, and other trailer manufacturers. For more than three quarters of a century, BULLDOG jacks have been demonstrated to be the most reliable, field-proven jacks on the market.
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Smooth, comfortable, ergonomic design
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Dependable vertical and side load capacity
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Proven reliability for long term use at rated loads
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Precision fitted parts for extra stability
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Zinc outer and inner tube
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Limited 5-year warranty
Specifications:
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Lift Capacity: 5,000 lbs.
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Retracted Bracket Height: 10.82" from bracket to bottom
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Extended Bracket Height: 25.82"
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Travel/Lift: 15"
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Clearance: 10.70" from bracket to top
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Weld-on/bolt-on bracket works with any standard A-Frame mount
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Handle Radius: 6.65"
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Inner tube diameter: 2"
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Outer tube diameter: 2-1/4"
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Wheel and base sold separately
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Product Details
- Brand: Bulldog
- Model: 1750290301
- UPC: 016118097337
- Includes: 5000 lbs A-Frame Jack
Description
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Bulldog 5,000 lbs. Round A-Frame Trailer Jack Topwind 15" Lift Zinc Install Notes
Installation Instructions for Tongue Jacks
Part Number:
- N1750290301
Tools Required:
- 3/4” Wrench
Safety Instructions:
- Confirm no interference with the tow vehicle, tongue, ground, or other mounted accessories in any position (stationary or in motion).
- Fully retract and rotate the jack before towing.
- Ensure the drop foot or drop leg pin is fully inserted through both sides of the inner and outer tube before use.
- Remove optional drop foot or caster before towing to maximize ground clearance.
- Secure load, vehicle, and trailer from rolling by blocking wheels before operating the jack.
- Avoid excessive side forces to prevent jack failure.
- Replace bent, broken, or worn parts before use.
- Do not weld “bolt-on” brackets or straps to the tongue.
Installation Instructions:
Bolt-On Rack Jack:
- Place the gear housing on the tongue, and insert supplied bolts into the holes corresponding to tongue width.
- Position the mounting bracket below the tongue with the flat surface against the tongue.
- Secure with locknuts, torqued to 25 ft-lbs.
Bolt-On Mounting Bracket:
- Place the jack against the tongue and position the mounting straps on the opposite side.
- Align the holes in the mounting bracket with the holes in the straps.
- Insert four bolts through the mounting bracket and straps. Ensure the upper bolts rest on the top of the tongue, and the lower bolts are less than 1/16” from the bottom of the tongue.
- Secure with locknuts and torque to 25 ft-lbs.
Snap Ring/Bolt-Thru Mount:
- Snap Ring Models: Place the jack bracket over the mount and insert the snap ring into the groove. Ensure it is fully seated.
- Bolt-Thru Models: Place the jack bracket into the recessed opening on the mount. Insert the small end of the bushing into the jack bracket and onto the bolt. Tighten the locknut until there is minimal movement in the bushing.
"A" Plate Mounting:
- All welding must be performed by an AWS-certified welder.
- Weld the "A" plate to the trailer coupler using a 3/16” fillet weld.
- Attach the jack “A” plate to the coupler using three 3/8-16 grade 5 bolts with washers, torqued to 15-20 ft-lbs.
- Weld the recommended support plate to the bottom of the trailer frame using a 3/16” fillet weld.
Maintenance:
- Lubricate internal gears and bushings annually for side-wind models with automotive grease.
- Apply lightweight oil to screw stems for top-wind models.
- Flush the jack assembly with fresh water and reapply lubricant if used in a marine environment.
Warranty:
- Coverage: 5 years unless otherwise specified.
- Exclusions: Normal wear, misuse, improper installation, or unauthorized modifications.
Additional Information:
Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.
Technical Support:
For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
WARNING: Failure to follow these instructions may result in property damage, serious injury, or death.
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