HD-973P Series Multi-Level Parking Lift 16 P/N 5900076 — Rev. B3 — January 2024
Planning for Electrical Work
You will need to have a licensed Electrician available at some point in the installation.
⚠ DANGER A licensed Electrician must perform all wiring.
Notify your Electrician in advance so that they arrive prepared with an appropriate Power Cord with a
Plug or wiring for connecting to the power source, a Power Disconnect Switch, and a Thermal
Disconnect Switch. Refer to Contacting the Electrician for more information.
The Electrician is required to:
• Connect the Power Unit to a power source. Replace the pigtail delivered with your Power
Unit with the appropriate Power Cord and Plug or wire directly to the facility’s electrical system.
• Install the Microswitch. Shuts off electric power in the event that a Vehicle on the Lower
Platform comes too close to contacting the underside of the Upper Platform. Installed on the
underside of the Aluminum Decks on the Upper Platform. UL Cable included.
• Install a Power Disconnect Switch. Ensures you can quickly and completely interrupt
electrical power to the Lift in the event of an electrical circuit fault, emergency, or when the
equipment is undergoing service or maintenance. Install the Power Disconnect within sight and
reach of the Lift operator.
• Install a Thermal Disconnect Switch. Ensures the equipment shuts down in the event of an
overload or an overheated motor.
Selecting a Location
When selecting the location for your Lift, consider:
• Architectural plans. Consult the architectural plans for your desired installation location. Make
sure there are no issues between what you want to do and what the plans show.
• Available space. Make sure there is enough space for the Lift: front, back, sides, and above.
Refer to Specifications for measurements.
• Overhead Clearance. Check for overhead obstructions such as building supports, heaters,
electrical lines, low ceilings, hanging lights, and so on. You do not want the Vehicles on the
Lift hitting obstructions. Follow the formula below for calculating how much height is required,
based on the Vehicles you want to park on the Upper Platform:
Height of Vehicle on the Upper Platform + 7 inches + height of Safety Locks
Add these together; your location height needs to be higher than the sum of these values.
The 7-inch figure includes the height of the Upper Platform plus the height needed to raise the Lift
off the Safety Locks. Note this figure is a rough estimate, for calculation purposes only.
Tip To find the “height of Safety Lock,” raise the Platform and lock it on its Safety Lock
position, then measure from the ground to the bottom of the raised Platform. Note that
the maximum rise height listed in Specifications is how high the mechanism can
rise before stopping; the Safety Locks height is different from maximum rise.
Refer to the figure on the next page.
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