AM 2/24 Hydraulic Jacks with Manual Override
$2,375.00
AM hydraulic trailer jack, dual leg, 24" stroke
Complete dual leg hydraulic lifting system that bolts to the front of a gooseneck trailer. The AM series is the 4" x 4" square tube in tube jack, and this system lifts 24,000 lbs across the two legs. Two rocker switches, one for each leg, replace cranking a manual jack and run the jacks together or one at a time, which on a loaded horse or motorsports trailer is the difference between a two minute hook up and a fight.
Specifications
| Series | AM series tube in tube |
|---|---|
| Legs | 2 |
| Lifting capacity | 24,000 lbs |
| Stroke length | 24" |
| Tube size | 4" x 4" |
| Retracted length | 35.25" |
| Extended length | 58.3125" |
| Cylinder bore | 2.5" |
| Manual override | Screw drive output shaft |
| Control | One switch box with two rocker switches and key switch |
AM series legs are offered in 16", 20", 24" and 30" strokes, with retracted lengths of 27.25", 31.25", 35.25" and 41.25" and extended lengths of 42.3125", 50.3125", 58.3125" and 70.3125". This system ships with the 24" stroke legs.
Manual override: screw drive
If the system loses power, the pump is driven with an electric drill through the override shaft on the end of the motor, under the plastic cap or foil seal. The drill has to reach at least 2000 rpm or the pump will not develop enough pressure to move the jacks. The hex size and drill direction depend on the pump fitted to your unit, a 7/16 inch hex driver on most pumps and a 1/4 inch (6mm) Allen hex key on others, and on this independent control system the two cartridge valves must be closed first and returned afterwards, so follow the manual override section of the AM Dual Leg manual below. Take care that the drill does not contact wires or hoses.
Standard and optional equipment
- Commercial dual function pump with manual override
- Pump cover
- One control box with dual switches to operate each jack independently, which also lets the trailer be leveled side to side
- Key switch standard, which also prevents unauthorized use of the system
- Universal mounting brackets included
- Wire harnesses have a PVC high temperature nylon braid to hold up in the toughest environments
Battery requirement
EQ Systems recommends load testing the battery: it should deliver a minimum of 150 amperes at a minimum of 10.5 VDC for at least 30 seconds. Keep the terminals tight and free of corrosion, and keep the battery charged and maintained to the battery manufacturer's requirements. If the trailer sits between trips, Stay Charge parts 8400 and 8427 charge the trailer battery from the tow vehicle, and solar kit 70486 keeps the jack battery topped up.
Fluid and maintenance
The unit ships without fluid or mounting bolts, and bolt kits are available online. An AM 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 1179EQ. Cylinders are identified by the jack outer tube size and length, not by the bracket. The switchgear for a dual system is 6704.