Auxiliary Dual Pump/Motor System
With an auxiliary dual pump/motor system, in normal dual pump mode, one pump/motor provides power while the second provides power-down to “exercise” both power units keeping both units lubricated and functional.
In the event of power failure, the system can be switched from dual pump mode to select either of the single pumps to completely power the liftgate.
Bi-rotational pump design increases solenoid life and has fewer moving parts.
Overview of HOLLAND Liftgates