D4-9 / D4-9X Four-Post Lifts 49 P/N 5900251 — Rev. A1— August 2021
Adding Hydraulic Fluid
The Hydraulic Fluid reservoir on the Power Unit must be filled with approved fluid before you begin
normal operation of the Lift.
When you receive the Lift, the fluid reservoir is empty.
⚠ CAUTION The Power Unit will not work correctly until it is filled with approved Hydraulic Fluid.
Approved fluids are any general purpose ISO-32, ISO-46, or ISO-68 hydraulic fluid, approved
automatic transmission fluids such as Dexron III, Dexron VI, Mercon V, Mercon LV, or any synthetic
multi-Vehicle automatic transmission fluid.
⚠ WARNING Do not run your Power Unit without Hydraulic Fluid; you will damage it.
Hydraulic Fluid Reservoir is in the same location for all Power Units. Standard 110 VAC Power Unit
shown. Not drawn to scale. Not all components shown.
To fill the Hydraulic Fluid Reservoir:
1. Remove the Reservoir Cap from the top of the Reservoir.
2. If the Reservoir is empty, fill it with approved fluid.
The Reservoir holds approximately 3.6 gallons / 13.5 liters. Use care to keep the fluid clean
when filling the reservoir.
3. If the Reservoir is low but not empty, carefully add approved fluid until the fluid level is about half an
inch under the Reservoir Cap.
4. When the reservoir is full, put the Reservoir Cap back on.
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