Vickers Lowrider Hydraulic aircraft pump, 24 & 12 volts switch action. - not a Pesco

Vickers aircraft power pack at 24 volts, trunk has 10 batteries and a full battery tray. Great action on 24 using regular diameter cylinders. 36 volts will get outstanding action. No need to hook up the dump to test the pump. The last 11 seconds is using 12 volts.