Description & Operation
The power seat can be adjusted in 6 different directions. The control switch is on the lower outboard side of the seat.
The front lever on the switch raises or lowers (tilts) the front of the seat cushion. The center lever raises or lowers the complete seat by moving the switch up or down. The center lever also moves the seat forward and rearward by moving the switch forward or rearward. The rear lever raises or lowers (tilts) the back of the seat cushion. See Fig 1 .
There are 3 reversible motors that operate the power seat. The front and rear of the seat are operated by different motors. They can be raised or lowered simultaneously as well as independently of each other. Moving the center position seat switch to either the UP or DOWN position, runs both the front and rear motors at the same time.
The forward-rearward motor is operated by the center position seat switch. When the switch is held in the FORWARD position, battery voltage is applied through the switch contacts to pin S3 (Tan wire) and the forward-rearward motor. The motor is grounded through S4 (White wire) and the contacts of the back switch to pin 2 and to ground. The motor runs to drive the seat forward until the switch is released.
With the switch in the REAR position, pin S4 receives battery voltage and pin S3 is grounded. This reversed polarity causes the motor to run in the opposite direction and drive the seat backward.
The front and rear motor works in a similar way when the front or rear height switch is operated.
To raise the seat, the center position seat switch is held in the UP position. This applies battery voltage to both pins S1 and S5 and the front and rear motors. Pins S2 and S6 are grounded through the down switches and the lower switch. Both motors run to drive the entire seat up. A similar action occurs to move the entire seat down.
Each motor contains a self-resetting circuit breaker to protect it from overload. Consecutive or frequent resetting must not be allowed to continue. Make necessary repairs.