Bulldog 2‑Speed 12,000 lbs Square Trailer Jack Drop Leg w/ Spring Return Traditional Gearbox 26" Lift
Model: 1839022-SPEED SQUARE JACKS The First 2-Speed Gearbox Designed with a Drop Leg Jack in Mind.
BULLDOG’s 2-speed 12,000 lbs. support capacity square jack makes cranking easier when fully loaded and faster when unloaded. In low gear, the ratio delivers full lifting power at a super-smooth, easy-lifting traditional gearbox 29 turns per 1" of travel. In high gear, the cranking ratio is a speedy 9 turns per 1" of travel, the fastest in its weight class.
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State of the art 2 speed gearbox with power and speed for the most effective and efficient jack at all loads
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Designed for today’s standard agricultural, construction and industrial trailer applications.
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User friendly design makes operation smooth and easy
-
Drop Leg increases overall extension
-
Engineered alloys for enhanced strength, stability and sideload capability
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Painted outer tube, inner tube, and drop leg.
Specifications:
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Support Capacity: 12,000 lbs.
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Lift Capacity: 10,000 lbs.
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Retracted Height: 28.5"
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Extended Height: 54.6"
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Travel/Lift: 12.5"
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Spring Return Drop Leg allows 13.5” of additional adjustment
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Standard disc foot included
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Drop Leg Pull Pin is on the side
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Crank Sold Separately
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4" Tubing width
This Jack can be paired with the Bulldog 2-Speed Electric Powered Drive Motor Kit, please use part number 1824180100. This is a 2-Speed Motor Kit.
Recommended applications: PJ Downeaster Sundowner eby merhow Featherlite CM Kaufman Saratoga Classic Jamco 4 Star Sidekick Hawk Trail-et Sundowner Bri-Mar Big Tex Trails West Forest River Lexington dump construction equipment stock grain cart cherokee Trailerman cORN PRO McLander GatorMade Trailerman Cronkite Elite Boss Stillwater Brooks Bothers Horton$429 99 $525.00 18% OFF
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$525.00 $429 99
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Product Details
- Brand: Bulldog
- Model: 183902
- UPC: 016118095890
- Includes: 2-Speed 12K Jack
Description
2-SPEED SQUARE JACKS The First 2-Speed Gearbox Designed with a Drop Leg Jack in Mind.
BULLDOG’s 2-speed 12,000 lbs. support capacity square jack makes cranking easier when fully loaded and faster when unloaded. In low gear, the ratio delivers full lifting power at a super-smooth, easy-lifting traditional gearbox 29 turns per 1" of travel. In high gear, the cranking ratio is a speedy 9 turns per 1" of travel, the fastest in its weight class.
-
State of the art 2 speed gearbox with power and speed for the most effective and efficient jack at all loads
-
Designed for today’s standard agricultural, construction and industrial trailer applications.
-
User friendly design makes operation smooth and easy
-
Drop Leg increases overall extension
-
Engineered alloys for enhanced strength, stability and sideload capability
-
Painted outer tube, inner tube, and drop leg.
Specifications:
-
Support Capacity: 12,000 lbs.
-
Lift Capacity: 10,000 lbs.
-
Retracted Height: 28.5"
-
Extended Height: 54.6"
-
Travel/Lift: 12.5"
-
Spring Return Drop Leg allows 13.5” of additional adjustment
-
Standard disc foot included
-
Drop Leg Pull Pin is on the side
-
Crank Sold Separately
-
4" Tubing width
This Jack can be paired with the Bulldog 2-Speed Electric Powered Drive Motor Kit, please use part number 1824180100. This is a 2-Speed Motor Kit.
Recommended applications: PJ Downeaster Sundowner eby merhow Featherlite CM Kaufman Saratoga Classic Jamco 4 Star Sidekick Hawk Trail-et Sundowner Bri-Mar Big Tex Trails West Forest River Lexington dump construction equipment stock grain cart cherokee Trailerman cORN PRO McLander GatorMade Trailerman Cronkite Elite Boss Stillwater Brooks Bothers HortonGet Expert Help
Bulldog 2-Speed 12,000 lbs Square Trailer Jack Drop Leg w/ Spring Return Traditional Gearbox 26" Lift Install Notes
Installation Instructions for 12,000 lb. Square Tube Jack
General Installation Notes:
- Read, understand, and follow all instructions before installation and use.
- Do not modify or alter the product.
- Never place any part of the body under the jack or the load it supports.
- Fully retract and/or rotate the jack before towing.
- Ensure the drop leg pin is fully inserted before using the jack.
- Secure the load and block wheels to prevent movement during operation.
- Avoid excessive side forces to prevent jack failure.
- Replace any bent, broken, or worn parts before use.
- Use only on flat surfaces.
- For tandem applications, align jacks to share the load equally.
- All welding must be performed by an AWS-certified welder.
Tools Required:
- Torque wrench
- Ratchet set
Step-by-Step Instructions:
Direct Mount to Load-Bearing Member:
- All welding must be performed by an AWS-certified welder.
- Apply three 2-inch-long 1/4” fillet welds on both sides of the jack along the contacting surface.
- Ensure welds are as far apart as possible for maximum strength.
- For tandem applications, align the jacks carefully to raise and lower together.
Weld-On Pivot Tube Mounting:
- Weld the non-beveled side of the pivot tube to the trailer tongue with a 1/4” fillet weld.
- Align the pivot mount holes vertically and secure the jack to the pivot tube using the supplied pin.
Drop Leg Operation:
Spring Return Drop Leg:
- Verify that the jack is not supporting any load.
- Place your foot on the footplate to control the return of the drop leg.
- Rotate the drop leg pin to disengage it, then carefully move the leg to the desired position.
- Rotate the pin to engage it fully in the adjustment hole.
- Verify the pin is fully seated with no clearance between the pin and housing.
Non-Spring Return Drop Leg:
- Verify that the jack is not supporting any load.
- Grasp the handle of the footplate to control the drop leg's descent.
- Rotate the drop leg pin to disengage it, then move the leg to the desired position.
- Rotate the pin to engage it fully in the adjustment hole.
- Verify the pin is fully seated with no clearance between the pin and housing.
Maintenance:
- Annually lubricate gears, bushings, and screws with automotive grease.
- Apply lightweight oil to the input shaft bushings and drop leg pin assembly.
- Keep all components clean and free of debris.
Safety Notes:
- Fully retract and rotate the jack before towing.
- Keep clear of pinch points during operation.
- Do not adjust the drop leg while the jack is under load.
Limited Warranty:
- Coverage: 5 years against material defects in workmanship under normal use.
- Exclusions: Wear and tear, misuse, overloading, improper installation, and modifications.
- For complete warranty instructions, please download the full installation PDF.
Contact Information:
- 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.
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