Bulldog 2,000 lbs. Round A‑Frame Trailer Jack Sidewind 13" Lift w/ External gear box
Model: 155157BULLDOG 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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Grey painted outer and inner tube
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Limited 5-year warranty
Specifications:
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Lift Capacity: 2,000 lbs.
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Retracted Bracket Height: 8.60" from bracket to bottom
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Extended Bracket Height: 21.50"
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Travel/Lift: 13"
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Clearance: 13" 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: 5.80"
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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: 155157
- UPC: 783192005977
- Includes: A-Frame Jack
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Bulldog 2,000 lbs. Round A-Frame Trailer Jack Sidewind 13" Lift w/ External gear box Install Notes
Installation Instructions for Tongue Jacks
Part Number:
- N155157
Tools Required:
- 3/4” Wrench
Safety Instructions:
- Confirm no interference with the tow vehicle, tongue, ground, or mounted accessories in any position (stationary or in motion).
- Never position body parts under the jack or supported load.
- Fully retract and rotate the jack before towing.
- Ensure the drop foot or drop leg pin is fully inserted through both sides of the tube.
- Remove optional drop foot or caster before towing to maximize ground clearance.
- Secure the load, vehicle, and trailer from rolling by blocking wheels before operating the jack.
- Do not exceed the maximum rated capacity. Refer to product markings for rated capacity.
- Avoid excessive side forces to prevent jack failure.
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 and torque to 25 ft-lbs.
Bolt-On Mounting Bracket:
- Place the jack against the tongue and position 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. 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.
- Bolt the "A" plate to the coupler using three 3/8-16 grade 5 bolts with washers. Torque to 15-20 ft-lbs.
- Weld the recommended support plate to the bottom of the trailer frame.
Maintenance:
- Lubricate internal gears and bushings annually for side-wind models with automotive grease.
- Apply lightweight oil to screw stems for top-wind models.
- For marine environments, flush jack assembly with fresh water and apply lubricant.
Warranty:
This product is covered under a limited warranty. For complete warranty details and exclusions, refer to the original product documentation.
Attention:
This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information, please refer to the manufacturer's full documentation.
Technical Support:
For technical support and assistance, visit www.trailerjacks.com or call 877-869-6690.
WARNING: Failure to follow instructions may result in property damage, serious injury, or death.
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