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Bulldog
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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 27 turns per 1" (planetary) and 29 turns per 1" (traditional) of travel. In high gear, the cranking ratio is a speedy 9 turns per 1" of travel, the fastest in its weight class.
| BRAND: | BULLDOG |
| PART NUMBER: | 183416 |
| WARRANTY: | LIMITED 5 YEAR WARRANTY |
| WEIGHT: | 73 LBS |
| CAPACITY: | 12,000 LBS. |
| TRAVEL: | 12.5 IN. |
| RETRACTED: | 29.5 IN. |
| EXTENDED: | 55.6 IN. |
| MODEL NUMBER: | SWQ 183 DL-BX |
| HANDLE STYLE: | PLANETARY |
| MATERIAL: | STEEL |
| SPEEDY LIFT: | NO |
| COLOR: | SILVER |
Founded in 1920, Bulldog has become the standard for heavy-duty trailer connection hardware in agricultural, military and utility service. The line covers gooseneck hitches and couplers, A-frame and channel-mount trailer couplers with the Wedge-Latch mechanism, and heavy-duty jacks, built for unmatched strength, reliability and safety under demanding loads.
Bulldog was founded in 1920 and has spent more than a century supplying the connection hardware that heavy trailers depend on. Its market has always been the demanding end: agricultural, military and utility applications where a coupler failure is not an inconvenience but a serious incident. The brand summarises its position as Tough and Tested, and it sits within the Horizon Global towing group alongside Reese, Draw-Tite, Fulton, Tekonsha, Bargman and Wesbar.
Gooseneck equipment is the brand's signature. Gooseneck hitches mount in the truck bed over the rear axle, which places the load where the chassis can carry it properly and allows far tighter turning than a receiver hitch permits. Matching gooseneck couplers attach at the trailer end, in round tube and square configurations across the capacity range used by livestock, equipment and flatbed trailers.
The conventional trailer coupler range is built around the Wedge-Latch mechanism, which uses a wedge to take up wear between coupler and ball rather than relying on a fixed clamp that loosens over time. That matters on a trailer accumulating hard miles, where slack in the coupling shows up as noise and shock loading. Couplers are offered in A-frame form for standard tongues and in channel-mount form for straight tongue and fabricated frames, with adjustable channel versions that let a coupler be positioned to suit the tongue height.
Heavy-duty jacks complete the line, sized for the tongue weights that gooseneck and equipment trailers generate. Across the range the emphasis is consistent: forged and heavy-section components, load ratings backed by testing, and hardware specified for agricultural, military and heavy-duty commercial use rather than occasional recreational towing.
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How to Maintain Your BULLDOG® Square Tube Jack
The jack has a maximum rated capacity of 12,000 lb. However, the actual capacity is limited to the lesser of the jack, footplate, or caster wheel capacity. Always refer to the stamped markings or decals on the product to confirm the rated capacity. If uncertain, contact Cequent Performance Products at 1-800-521-0510 or www.cequentgroup.com.
The jack has a 2-speed shift pattern where the handle moves 5/8 inch to 3/4 inch while shifting. High gear is engaged when the shaft is pushed in. Low gear is engaged when the shaft is pulled out. This clearance must be accounted for during installation to prevent interference.
No. These jacks are designed for mounting to flat surfaces only. Before mounting, confirm that there will be no interference from the tow vehicle, tongue, ground, and any other mounted accessories while stationary or in motion. Check for interference in all positions including handle swing (in both gears, if applicable) and swivel positions if applicable. Check for interference again after installation is complete.
Before mounting, confirm there will be no interference from the tow vehicle, tongue, ground, and any other mounted accessories while stationary or in motion. Check for interference in all positions including handle swing in both gears (if applicable) and swivel positions (if applicable). Specifically account for the 5/8-inch to 3/4-inch handle movement during 2-speed shifting. Repeat all interference checks after installation is complete.
An AWS certified welder is required for all welding work. The manual does not specify other tools. All welding must be performed by an AWS certified welder; do not attempt welding yourself unless you hold this certification. For maintenance, a grease gun and lightweight oil are needed for lubrication.
Yes. All welding must be performed by an AWS certified welder. This is a mandatory requirement stated multiple times in the installation instructions. Do not attempt to weld the jack yourself unless you hold AWS certification.
For direct-mount installation, three 2-inch long 1/4-inch fillet welds must be placed on both sides of the jack along the contacting surface. The welds should be as far apart as possible to maximize strength under load. All welding must be performed by an AWS certified welder.
1) All welding must be performed by an AWS certified welder. 2) The non-beveled side of the pivot tube is welded to the tongue. 3) Place the weld-on pivot tube against the tongue and weld all around with a 1/4-inch fillet weld. Align one set of pivot mount holes vertically. 4) Mate the jack to the pivot tube and secure with the supplied pin.
Make certain the pivot pin is fully inserted through both sides of the pivot tube and the pivot mount before using the jack. This is a critical safety requirement.
If mounting in a tandem application, align the jacks carefully so they raise and lower together and share the load equally. Failure to do so may result in uneven loading and potential jack failure.
Never position any part of your body under any portion of the jack or the load being supported. Secure the load, vehicle and trailer from rolling by blocking wheels when operating the jack or coupling the trailer. Do not allow children to play on or around the jack or the load being supported. Never exceed the maximum rated capacity. These jacks are designed for vertical loading only; excessive side forces may cause jack failure and must be avoided.
Fully retract and/or rotate the jack before towing. This is a mandatory safety requirement to prevent interference and potential damage during transport.
The drop leg will naturally drop or retract very quickly depending on the model. Keep clear of the pinch point at the drop leg pin. Keep clear of holes in the drop leg. Never attempt to adjust the drop leg when the jack is under load. When using the drop leg, make certain the drop leg pin is fully inserted before using the jack.
1) Verify that the jack is not supporting any load. 2) If extended, place your foot on the foot plate to control the return of the drop leg. 3) Disengage the drop leg pin by rotating it to the disengaged position. 4) Carefully move the drop leg to the desired position using your foot. 5) Engage the drop leg pin by rotating it to the engaged position and into the desired adjustment hole. 6) Verify that the drop leg pin is fully inserted into the jack by checking for no clearance between the drop leg pin and housing. If you see clearance, adjust the drop leg to fully seat the pin into the hole location. If you are unable to fully seat the pin, do not use the jack.
1) Verify that the jack is not supporting any load. 2) If retracted, grasp the handle of the foot plate to control the fall of the drop leg. 3) Disengage the drop leg pin by rotating it to the disengaged position. 4) Carefully move the drop leg to the desired position. 5) Engage the drop leg pin by rotating it to the engaged position and into the desired adjustment hole. 6) Verify that the drop leg pin is fully inserted into the jack by checking for no clearance between the drop leg pin and housing. If you see clearance, adjust the drop leg to fully seat the pin into the hole location. If you are unable to fully seat the pin, do not use the jack.
Check for no clearance between the drop leg pin and housing. If you see clearance, you must adjust the drop leg to fully seat the pin into the hole location. You may need to lubricate the drop leg pin assembly. If you are unable to fully seat the pin, do not use the jack.
The following procedures should be performed at least annually: The gears, bushings, and screw of the jack must be kept lubricated. For side-wind models, apply a small amount of automotive grease with a grease gun at the lubrication points found on the side of the jack near the input shaft, then rotate the jack handle to distribute the grease evenly. A lightweight oil must be applied to the input shaft bushings at both sides of the jack or gearbox. For top-wind models, the screw-stem should be lubricated with lightweight oil. If equipped, the drop leg pin and spring must be kept clean and lubricated with lightweight oil.
Use automotive grease (applied with a grease gun) for the gears, bushings, and screw. Use lightweight oil for the input shaft bushings, gearbox, screw-stem (on top-wind models), and drop leg pin and spring (if equipped).
Contact Cequent Performance Products at 1-800-521-0510 or visit www.cequentgroup.com. For warranty claims or replacement parts, contact their Customer Service Department at the same number. The mailing address is 47774 Anchor Ct. W., Plymouth, MI 48170.
Cequent Performance Products warrants the jack to be free from material defects in both material and workmanship for five years from the date of purchase, ordinary wear and tear excepted. This warranty applies only to the original consumer purchaser and is not transferable. Installation and use must be in accordance with product instructions. The warranty does not cover normal wear and tear, damage from abuse, neglect, misuse, accidents, misapplication, overloading, improper installation (including welds), improper maintenance and repair, or product alteration by anyone other than Cequent. If the product does not comply with the warranty, your sole remedy is replacement without charge or refund of the purchase price at Cequent's option. You are responsible for return shipping costs.
Use only Cequent Performance Products parts or parts of equal quality for repair. Replacement parts are available through Cequent Performance Products Customer Service Department at 1-800-521-0510. Please specify the product model number when ordering.
Yes. These jacks are designed for mounting to flat surfaces only. Before installing, check for interference with the tow vehicle, tongue, ground, and accessories in all positions, including handle swing and swivel positions.
Yes. All welding must be performed by an AWS certified welder. This is a mandatory requirement for both direct-mount and pivot tube mounting.
For direct-mount: three 2-inch long 1/4-inch fillet welds on both sides of the jack. For pivot tube mount: 1/4-inch fillet weld all around the pivot tube. All welding must be performed by an AWS certified welder.
Fully retract and/or rotate the jack before towing. Never position any part of your body under the jack or load. Secure the load, vehicle and trailer from rolling by blocking wheels.
The jack has a maximum rated capacity of 12,000 lb, but the actual capacity is limited to the lesser of the jack, footplate, or caster wheel capacity. Never exceed the maximum rated capacity. Refer to stamped markings or decals on the product.
The jack handle moves 5/8 inch to 3/4 inch while shifting between high and low gear. This clearance must be accounted for during installation to prevent interference.
Maintenance procedures should be performed at least annually. Lubricate the gears, bushings, and screw with automotive grease (side-wind models) or lightweight oil (top-wind models). Apply lightweight oil to input shaft bushings and drop leg pin and spring if equipped.
The drop leg will naturally drop or retract very quickly. Keep clear of the pinch point at the drop leg pin and holes in the drop leg. Never adjust the drop leg when the jack is under load. Ensure the drop leg pin is fully inserted before using the jack.
If you see clearance between the drop leg pin and housing, you must adjust the drop leg to fully seat the pin into the hole location. You may need to lubricate the drop leg pin assembly as described in the maintenance section. If you are unable to fully seat the pin, do not use the jack.
You may need to lubricate the drop leg pin assembly. Apply lightweight oil to the drop leg pin and spring as described in the maintenance section. After lubrication, attempt to seat the pin again. If you are still unable to fully seat the pin, do not use the jack.
| Part Number | Model Number | Support Capacity (lbs.) | Lift Capacity (lbs.) | Gearbox Style | Travel (in.) | A Retracted (in.) | B Extended (in.) | Pin Location | Companion |
|---|---|---|---|---|---|---|---|---|---|
| Non-Spring Return | |||||||||
| 183401 | SWQ 183 DL-BX | 12,000 | 10,000 | Planetary | 12.50 | 28.50 | 54.60 | Side | 182411 |
| 183416 | SWQ 183 DL-BX | 12,000 | 10,000 | Planetary | 12.50 | 29.50 | 55.60 | Front | 182415 |
| 183901 | SWQ 180 DL-BX T | 12,000 | 10,000 | Traditional | 12.50 | 29.50 | 55.60 | Front | 182415 |
| Spring Return | |||||||||
| 183816 | SWQ 183 DL-BX w/SR | 12,000 | 10,000 | Planetary | 12.50 | 29.50 | 55.60 | Front | 182815 |
| 183902 | SWQ 180 DL-B w/SRT | 12,000 | 10,000 | Traditional | 12.50 | 28.50 | 54.60 | Side | 182805 |
| 183903 | SWQ 180 DL-BX w/SR T | 12,000 | 10,000 | Traditional | 12.50 | 29.50 | 55.60 | Front | 182815 |
Sam
Ordered online. Shipment arrived on time and with all the correct parts. Great customer service and friendly staff. Also, pricing was great!
May 22, 2023
