Crossfire SRT-6 V6-3.2L SC VIN N (2005)
The Hydraulic Pump (2) is driven by a reversible permanent-magnet motor (3) that makes use of the magnetic field of the magnets to convert electrical
energy to mechanical energy. The pump motor (3) is capable of delivering over 150 bar (2200 psi) of pressure to move the hydraulic cylinders. The
pump motor is controlled by the Power Top Control Module (PTCM) which is mounted to the power top hydraulic assembly mounting bracket. Battery
voltage is supplied to the pump motor (3) from Fuse 6 (40A) located in the Underhood Accessory Fuse Block to both Left and Right Rotation Relays.
The PTCM monitors the power top switch signal, when it senses a signal from the switch; the PTCM controls the battery feed and ground to the pump
motor (3) through the rotation relays. The pump motor (3) has two pressure relief valves (one for each direction) located in the pump housing (2) that
dumps the fluid back into the reservoir (1) if the hydraulic pressure raises to a dangerous level. The right rotation pressure relief valve is set at 115 bar
+/- 10 bar (1668 psi +/- 145 psi). The left rotation pressure relief valve is set at 140 bar +/- 10 bar (2030 psi +/- 145 psi).
Rotational Relays
The right Rotation Relay (5) and left Rotation Relay (4) control the direction of the pump motor (3). The default of the relays are at ground potential.
The PTCM controls the battery voltage to energize one of the relays to feed battery voltage to one side of the pump motor (2) and the other relay
controls the ground of the pump motor (2).
Hydraulic Solenoids
The Hydraulic Solenoids are a electromagnetic solenoid used to move a valve linearly to control the flow of the hydraulic fluid. The PTCM energizes
each hydraulic solenoid by controlling the battery voltage and ground. Hydraulic Solenoid S1 (6) controls the fluid to unlock the tonneau cover latch and
to raise the tonneau cover. Hydraulic Solenoid S2 (9) controls the fluid to lower the main cylinders (convertible top) into the cargo compartment and to
feed hydraulic fluid to hydraulic Solenoid S1 (6). Hydraulic Solenoid S3 (7) controls the fluid to raise the main cylinders (convertible top) out of the
cargo compartment and unlocks the rear bow latch. Hydraulic Solenoid S4 (8) controls the fluid to lower the rear bow and locks the rear bow latch.
