The Bucher/Monarch Dyna-Jack M-3530 is a highly versatile 12-volt DC hydraulic power unit. It is frequently utilized in mobile and industrial applications—like wreckers and dump trailers—due to its compact footprint and ability to handle four-function hydraulic operations (Up, Down, In, and Out). [1, 2, 3]
Key Specifications
Voltage: 12V DC standard (often paired with a high-torque motor)
Valves: Built-in 4-way/3-position directional control valve (ideal for double-acting cylinders)
Pressure Relief: Adjustable relief set at 2,500 psi
Output: 1.25 gpm at 1,750 psi
Reservoir: Typically configured with a 1-gallon polycarbonate or steel tank, though larger sizes are common [1, 2, 3]
Note" This unit was removed from a bus and is in good working order