Bulldog 8,000 lbs. Square Trailer Jack Sidewind 15" Lift Drop Leg w/ Footplate
Model: 190754SQUARE JACKS BULLDOG’s 8,000 lbs. support capacity square jack serves the agricultural, industrial, construction, horse/livestock trailer, and utility/cargo trailer markets. The compact design of these jacks makes them ideal for tight-fitting applications where 3" and 4" square tube jacks are too big!
Use the painted outer tube as the final finish or primer
Zinc-plated inner tube
4.7" Outer / inner tube overlap - results in optimal side load performance
5/8" screw stem - provides insurance against screw stem twisting off
Patented screw nut stop - prevents screw and/or nut damage when jack is fully extended
Limited 5-year warranty
ASABE Compliant
Specifications:
Support Capacity: 8,000 lbs.
Lift Capacity: 5,000 lbs.
Retracted Bracket Height: 25.06"
Extended Bracket Height: 53.56"
Travel/Lift: 15"
This Jack is intended to be welded on directly onto your application
Drop Leg w/ heavy-duty base (Drop Leg offers 13.50" of additional adjustment)
Handle included
Handle Radius: 8.5"
Sidewind models - 1/4" cross pin connects gear train to screw stem - guards against shearing jack pin
Sidewind models - 1:1.33 gear ratio
2-1/2" Tubing width
$118 54 $143.75 18% OFF
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$143.75 $118 54
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Product Details
- Brand: Bulldog
- Model: 190754
- UPC: 086693907543
- Includes: 8K Drop Leg Jack
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Bulldog 8,000 lbs. Square Trailer Jack Sidewind 15" Lift Drop Leg w/ Footplate Install Notes
Installation Instructions for Tongue Jacks
Tools Required:
- Torque wrench
- Welding equipment (if applicable)
General Installation Notes:
- Ensure installation follows these instructions without modifications or alterations.
- Fully retract and rotate the jack before towing.
- Verify the drop leg pin is fully inserted before use.
- Do not exceed the rated capacity of the jack, as marked on the product.
- Avoid excessive side forces; the jack is designed for vertical loads only.
- Replace bent, broken, or worn parts before use.
- All welding must be performed by an AWS-certified welder.
- Confirm clearance for handle swing and swivel positions before and after installation.
Step-by-Step Instructions:
Bolt-On Rack Jack:
- Place the gear housing on the trailer tongue.
- Insert the supplied bolts into the holes that align with the tongue width.
- Secure the mounting bracket underneath the tongue, ensuring the flat surface is aligned.
- Tighten with locknuts and torque to 25 ft-lbs.
Snap Ring/Bolt-Thru Installation:
- For Snap Ring:
- Place the jack bracket over the mount.
- Insert the snap ring into the groove and ensure it is fully seated.
- For Bolt-Thru:
- Insert the bushing into the jack bracket and secure it with the provided bolt and locknut.
- Tighten to limit movement without over-tightening.
Weld-On Pivot Tube Mounting:
- Weld the non-beveled side of the pivot tube to the trailer tongue with a 3/16” fillet weld.
- Align the pivot mount holes vertically.
- Attach the jack to the pivot tube and secure it with the supplied pin.
Direct Mount (Weld-On):
- Position the jack at the desired mounting point.
- Weld 1 inch in 2 locations on both sides using a 3/16” fillet weld.
Maintenance:
- Annually lubricate the gears, bushings, and screws with automotive grease.
- Use a grease gun at lubrication points near the input shaft for side-wind models.
- Apply lightweight oil to input shaft bushings and drop leg pin assemblies.
- Keep all components clean and lubricated, especially in marine environments.
Safety Notes:
- Fully retract and rotate the jack before towing.
- Keep clear of pinch points during operation.
- Never adjust the drop leg while the jack is under load.
- Remove any optional caster wheels or drop feet before towing to improve clearance.
Limited Warranty:
- Coverage: Warranty duration and coverage vary by product. Refer to product markings for details.
- Exclusions: Normal wear and tear, misuse, overloading, improper installation, or alterations.
- For complete warranty instructions, please download the full installation PDF.
Contact Information:
For 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.
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.
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