NUT 0847268 - Caterpillar

Cab Slide
When the operator is not sitting in the seat, the seat switch is open. Under these circumstances, the cab cannot be moved from side to side. When the operator is sitting in the seat, the seat switch is closed. In this case, the G985-PU wire transfers power to contact "2" of the cab slide switch.When the cab slide switch is in the RIGHT position, contact "1" and contact "2" of the switch are closed. In this case, the L802-BU wire transfers power to the solenoid that allows the cab to move to the right. When the cab slide switch is in the LEFT position, contact "2" and contact "3" of the switch are closed. In this case, the L803-OR wire transfers power to the solenoid that allows the cab to move to the left.Electric Motor and Pump (Accessory)
Illustration 2 g01276126
Electrical SchematicWhen the electrical disconnect switch is in the ON position, power from the main circuit breaker is available at the gate of the accessory motor relay and at circuit breaker "CB3". The 105-BR wire transfers power from circuit breaker "CB3" to the following places:
Contact "2" of the hood actuation switch
Contact "5" of the hood actuation switch
Contact "30" of the accessory relayWhen the main power relay is energized, power is available at circuit breaker "CB16". The 146-GY wire transfers power from circuit breaker "CB16" to contact "5" of the rotor service switch.When the hood actuation switch is in the LOWER position, power transfers into the C890-BU wire and into the P993-OR wire. The C890-BU wire transfers power to the hood lower solenoid. The P993-OR wire transfers power to the diverter solenoid and to the number two diode. The hood lower solenoid and the diverter solenoid remain energized until the hood actuation switch is released from the LOWER position.Power in the P993-OR wire transfers through the number two diode and into the 956-BR wire. This wire transfers power to contact "86" of the accessory relay. The 776-YL wire connects contact "85" of the accessory relay to contact "A" of the pressure switch. When the pressure switch is closed, the ground path for the coil of the accessory relay is complete, and the coil of the relay is energized.When the coil of the accessory relay is energized, contact "30" and contact "87" of the relay are closed. In this case, the 960-BU wire transfers power to the coil of the accessory motor relay, and the coil of this relay energizes. When the coil of the accessory motor relay is energized, the 777-PU wire transfers power to the electric motor.Note: The electric motor will operate as long as the pressure switch is closed. If the pressure switch is open, the ground path for the coil of the accessory relay is open. In this case, the coil of the accessory motor relay is de-energized and the electric motor will not operate. If the electric motor does not operate when the hood actuation switch is in the LOWER position, it may be necessary to