Seats: Description and Operation

CIRCUIT OPERATION


There are three reversible motor that operate the Power Seat. Two separate motors are used to position the front and rear height of the seat. When the Entire Seat Switch is pushed to the UP or DOWN position, both motors operate to move the front and back height of the seat at the same time.

The Forward-Back Motor is operated by the Entire Seat Switch. When held in the FORWARD position, battery voltage is applied to the switch contacts, the TAN wire, and the Forward-Back Motor. The motor is grounded through the LT GRN wire and the switch contacts to G310. The motor runs to drive the seat forward until the switch is released.

In the BACK position, the LT GRN wire receives battery voltage and the TAN wire is grounded. This reversed polarity causes the motor to run in the opposite direction to drive the seat backward until the switch is released.

To raise the entire seat, the Entire Seat Switch is held in the UP position. This applies battery voltage to the YEL and DK GRN wires, and both the Front Height and Rear Height Motors. The LT BLU and DK BLU wires are grounded through the contacts of the Front Height Switch and the Rear Height Switch. Both motors run to drive the entire seat up. A similar action occurs to move the entire seat down.

To raise the front height of the seat independently, hold the Front Height Switch in the UP position. This applies battery voltage to the Front Height Motor through the Front Height Switch contacts and DK GRN wire. The motor is grounded through the DK BLU wire and the contacts of the Front Height Switch to G310. The motor runs until the switch is released. To lower the front height of the seat, hold the Front Height Switch in the DOWN position. This action now grounds the DK GRN wire and applies battery voltage to the DK BLU wire. This reverses the polarity of the motor and causes the motor to run in the opposite direction to lower the seat. The Rear Height Motor operates similarly to adjust the rear height of the seat.

Each motor contains a self-resetting circuit breaker to protect it from overload. It will reset as the motor circuit cools off.