Checking Oil

Checking Hydraulic Oil Level







Before checking oil, open and close rear lid 2 - 3 times automatic to remove any air in the system.

- High oil level - Pressure in the tank could be too high during manual operation.
- Low oil level - Pump noises due to air in system, incomplete opening and closing function.

Hydraulic Pump







The hydraulic pump comprises an electric motor, the actual pump and an oil tank. The pump is packed in a sound capsule to reduce noise and is secured in the rear left wheel housing by a support.

NOTES: Even when the cylinder is extended, the spring is still pretensioned by more than 1000 N.

The spring-supported hydraulic cylinder is connected to the pump by quick connectors. Pressure loading of the cylinder on the piston side drives the cylinder out. Pressure is applied to the rod side by reversing the poles of the electric motor. The control unit for rear lid hydraulics reverses the poles. A maximum pressure of up to 2900 psi (200 bar) exists in the system. The pressure in the system must not exceed 72 psi (5 bar) when removing/installing the quick connectors, otherwise the connectors can be damaged. The automatic rear lid system also has diagnostic capabilities.