AJ Hydraulic Trailer Jacks 2/24 with 2 Function Manual Selector

AJ Hydraulic Trailer Jacks 2/24 with 2 Function Manual Selector

$1,970.00

SKU: 8415AMUPS
Category: Motorsports / Cargo

Description

AJ hydraulic trailer jack, dual leg, 24" stroke

Complete dual leg hydraulic lifting system for a gooseneck or fifth wheel trailer. The AJ series is the 3.5" x 3.5" square tube in tube jack, and this system lifts 16,000 lbs across the two legs. Push button lifting replaces cranking a manual jack, which on a loaded horse or motorsports trailer is the difference between a two minute hook up and a fight.

Specifications

Series AJ series tube in tube
Legs 2
Lifting capacity 16,000 lbs
Stroke length 24"
Tube size 3.5" x 3.5"
Manual override Screw drive output shaft
Control Keyed switch and harness, standard

Manual override: screw drive

If the system loses power, the jack is driven by hand through the output shaft on the end of the motor. Remove the pump top cover, then the silver sticker on the end of the motor, and drive the override coupler with a drill capable of at least 2000 rpm, using a 1/4 inch (6mm) Allen drive hex key. Take care that the drill does not contact wires or hoses. The drill has to reach 2000 rpm or the pump will not develop enough pressure to move the jack.

Two function manual selector

This system is supplied with a two function manual selector, which lets the operator choose which function the pump drives by hand rather than through separate powered circuits.

Standard and optional equipment

  • Keyed switch and harness standard, which also prevents unauthorized use of the system
  • Universal mounting brackets included
  • Switchgear built in house, performance verification tested, braided nylon exterior

Battery requirement

EQ Systems recommends a minimum group 24 RV or marine battery rated at least 100 minutes reserve capacity and 500 cold cranking amps; the higher those numbers the better. Flooded lead acid, gel and AGM types are all suitable. Some lithium batteries cannot deliver the running amperage this system needs, so check with the battery manufacturer before fitting one. If the trailer sits between trips, Stay Charge parts 8400 and 8427 charge the trailer battery from the tow vehicle, and solar kit 70487 keeps the jack battery topped up.

Fluid and maintenance

An AJ dual leg system runs on Dexron III ATF, filled to about one inch below the top of the reservoir with the jacks fully retracted. Remember the level rises as the jacks retract. The reservoir must run with its vented breather cap fitted, not the flush shipping plug, or the jack will operate erratically. EQ Systems recommends owners inspect the system every 12 months, checking that all connections are tight and free from corrosion, particularly the ground to the pump stud and the positive cable to the motor solenoid.

Service parts

The replacement hydraulic cylinder for this jack is part 2505EQ. Cylinders are identified by the jack outer tube size and length, not by the bracket. The switchgear for a dual system is 6704.

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