Soft top sequences, closing the soft top, hydraulic functions

1. Opening the soft top cover 

   STC receives information from the soft top switch to close the soft top. Hydraulic pump (5) runs anticlockwise, solenoid valves (1) and (2) are activated, thereby opening the latch (8) for bow one and the hydraulic cylinders (13) and (14) for the soft top cover. The latch for bow one is released and the soft top cover opens.

   Fig 1: Opening Soft Top Cover - Hydraulic Pump Functions Diagram

   Courtesy of SAAB-SCANIA OF AMERICA, INC.
2. Raising the soft top 

   Hydraulic pump (5) runs anticlockwise, solenoid valves (1) and (3) are activated, thereby connecting the pressure from the hydraulic pump to the main cylinders (9) and (10), which press out the pistons and raise the soft top.

   Fig 2: Raising Soft Top - Hydraulic Pump Functions Diagram

   Courtesy of SAAB-SCANIA OF AMERICA, INC.
3. Opening the sixth bow 

   Solenoid valves (1), (2) and (3) are activated by running the hydraulic pump (5) anticlockwise. This gives a pressure connection between the hydraulic pump and the hydraulic cylinders (11) and (12) for the sixth bow. The hydraulic cylinders for bow six are moved to open position, which opens the sixth bow.

   Fig 3: Opening Sixth Bow - Hydraulic Pump Functions Diagram

   Courtesy of SAAB-SCANIA OF AMERICA, INC.
4. Locking bow one and closing the soft top cover 

   The hydraulic pump (5) runs anticlockwise, solenoid valves (2) and (3) are activated. Via these, hydraulic cylinder (8) is operated for locking the first bow and the two hydraulic cylinders (13) and (14) for the soft top cover. All of these cylinders return to closed position. Bow one locking is secured and the soft top cover closes.

   Fig 4: Locking Bow One And Closing Soft Top Cover - Hydraulic Pump Functions Diagram

   Courtesy of SAAB-SCANIA OF AMERICA, INC.
5. Closing the sixth bow 

   The hydraulic pump (5) in this case is run in the opposite direction, i.e. clockwise, which connects pressure to the main cylinders (11) and (12). Solenoid valve (3) is activated to maintain the pressure in the main hydraulic cylinders (9) and (10). The hydraulic cylinders for the sixth bow return to their original positions and the sixth bow closes.

   Fig 5: Closing Sixth Bow - Hydraulic Pump Functions Diagram

   Courtesy of SAAB-SCANIA OF AMERICA, INC.

The hydraulic system uses the following valve combinations to perform the soft top sequences: