LUBRICANT- 1853989 - Caterpillar

Illustration 1 g00978856
Illustration 2 g00978870
The components for the engine lockout function consist of the toggle switch (service) (1) and the service indicator lamp (2) on the machine. These components are monitored and controlled by the Transmission/Chassis ECM in order to perform the engine lockout function.
Illustration 3 g00984512
To activate the engine lockout function, place service switch (1) in the Service position. When service switch (1) is toward the picture in Illustration 3 this is the position for the lockout function. Also, the conditions that follow much be met.
The engine is off.
The parking brake is set.
The transmission lever for the operator in the cab is in the Neutral position.The key switch can be in the On position in order to enter this mode. All of the machine functions will be inhibited except for the Quic?Pub feature in this mode. The service indicator lamp (2) will be On. Once the engine lockout function is enabled, the engine lockout function must be disabled in order to allow the engine to start. When service switch (1) is in the Service position, the machine's main power relay will energize and an OPEN signal will be sent to two separate inputs of the Transmission/Chassis ECM. The Transmission/Chassis ECM will check the machine conditions in order to determine if the engine lockout function could become active. If the machine conditions are appropriate, then the engine lockout function could become active, and service indicator lamp (2) will turn ON. Otherwise, the machine lockout will remain inactive, and the service indicator lamp will FLASH.Note: If service switch (1) is in the Service position and the engine is not running, the engine will not start, but all of the functions are inhibited.The position of the key switch will determine if the engine lockout function can be deactivated. If the key switch is in the On position the following conditions must be met.
The engine is Off.
The parking brake is set.
The transmission lever for the operator, that is in the cab, is in the Neutral position.
The service switch is in the Off position.If the key is in the Off position, the above lockout conditions must be met when the power is applied again. When service switch (1) is in the OFF position and the key switch is in the OFF position the main power relay will turn OFF. Also, a ground signal will be sent to two separate inputs of the Transmission/Chassis ECM. The Transmission/Chassis ECM will check the machine conditions in order to determine if the engine lockout function could become inactive. The engine lockout function could become inactive if the main power relay is energized and service switch (1) is in the OFF position. When the main power relay is energized and the machine conditions are appropriate then the engine lockout function will remain inactive and service indicator lamp (2) will be OFF. Otherwise, the engine lockout function will remain active and service indicator lamp (2) will be OFF. In this case, the engine lockout function will be