MAGNUM LIFT allows you to easily convert your heavy duty 2 speed Binkley - Holland, Bulldog or other similar gooseneck trailer jack to electric power operation.
Designed to be mounted on the 1-1/2" input shaft support hub (collar) of gooseneck horse/stock trailers and fifth wheel or gooseneck race/cargo trailer jacks.
See the jack image with the support hub circled for clarification.
Holland/Binkley brand jacks manufactured after September 2010 no longer have the support hub welded to the gear box.
If the hub is not present on your jack you will need to add the 1-1/2" Support Hub Adapter Bracket kit.
Electric motor coupler fits jacks with 1" diameter crank shafts only.
Runs from trailer's existing 12 Volt DC power source.
Comes as a complete kit with switch box, wiring harness, electrical connectors and mounting bracket.
Motor shaft extend outside of motor and includes a 3/8" hex to allow for manual cranking with a ratchet wrench and socket (not included) if 12V battery power is lost.
If space is an issue this kit can be mounted on the opposite side of jack from gear box (see last 2 images).
For this style installation your jack must have the long crank shaft that extends appx. 3" past the jack leg. Some welding is required for this mounting method.
Your gear box MUST be in low speed (easy to crank) for either mounting method.
Motor is a single speed unit designed to be used on LOW speed side of gear box only.
Lifting speed is approximately 7" per minute appx.
The Magnum Electric is 12" long, and installs in standard position with basic hand tools. 2-Year factory warranty.
Jack shown for illustration purpose ONLY. Available and sold separately.
*Can vary depending on condition of jack, trailer geometry, parking position etc.