Scissor Lift Hydraulics

Objectives

In this lesson we will look at the
main hydraulic components that make
up a scissor lift hydraulic system.

We will learn what functions they serve and
how they’re all connected in the system.

In this lesson we will look at the main hydraulic components that make up a scissor lift hydraulic system.

We will learn what functions they serve and how they’re all connected in the system.

What Is It?

The Genie GS 1930 slab scissor lift is a type of mobile aerial work platform that is meant to be used on smooth, flat surfaces.

Genie GS 1930 Slab Scissor Lift Tour

Max 1.5° Angle Slope When Lifted >7-8'

The scissor lift may be driven on a slope up to 14 degrees while stowed only. When it’s lifted it must be on a level surface.

If the scissor lift is on an angle greater than 3 degrees lengthways or 1.5 degrees sideways, and it’s lifted more than 7 to 8 feet, an alarm will sound and it will not raise any further.

Max 14° Angle Slope While Stowed

>3° Angle Slope Stops Lifting at 7-8'

Max 3° Angle Slope When Lifted >7-8'

The Genie 1930 scissor lift hydraulic system includes a power unit, lift cylinder, steering cylinder, drive motors, and brakes.

Power Unit

Lift Cylinder

Steering Cylinder

Drive Motors

Brakes

Genie GS 1930 Scissor Lift Hydraulic Schematic
Mouse over the green circles to locate the components on the scissor lift.

Let’s take a closer look at each of the components below!

The Power Unit

The power unit, located in the right side tray, consists of a variable speed motor that is attached to a fixed displacement pump, alongside the hydraulic tank and filter.

The variable electric motor allows for different drive speeds. For example, when the platform is lifted any amount the scissor lift will drive at low speed, and when the platform is stowed it will drive at full speed.

Pump

Motor

Power Unit

Filter

Tank

Pump

Motor

Power Unit

Filter

Tank

Emergency Stop

There are two red emergency stop buttons on the scissor lift. Push the emergency stop button to stop all functions and pull it out to re-enable operation of the machine.