O-RING 0878437 - Caterpillar

Illustration 1 g03715647
Inside Left Steering Column (1) Propel override resistor "1" (2) Propel override resistor "2"Propel override resistor "1" (1) and propel override resistor "2" (2) are located inside the left steering column. A cover plate must be removed to access these components.Propel override resistor "1" (1) and propel override resistor "2" (2) limit the speed of the machine when the propel override switches are used.
Illustration 2 g03715650
Rear of Machine (3) Back-up alarm relayBack-up alarm relay (3) is located in the power distribution module. This module is mounted to the door of the compartment that is located at the front of the operator platform. The compartment door provides access to the power distribution module. The cover must be removed from the module to access the back-up alarm relay. A decal on the cover identifies the components in the power distribution module.The machine ECM controls back-up alarm relay (3). When the electronic control system determines that the desired travel direction is reverse, the machine ECM energizes the coil of the back-up alarm relay. In this case, the back-up alarm sounds.
Illustration 3 g03715651
Compartment at Front of Operator Platform (4) Back-up alarmBack-up alarm (4) is mounted to the rear of the machine, to the right of center. The back-up alarm relay (3) controls back-up alarm (4). When the relay is energized, the back-up alarm sounds.