SEAL-LIP TYPE 4S7756 - Caterpillar

Note: This information is for MUI engines. The hours of the GSC can only be increased with the procedures that are listed below. After programming is completed, the hours of the GSC CANNOT BE DECREASED TO THE ORIGINAL VALUE. Ensure that the hours that are programmed into the GSC are the correct value before continuing with this procedure.OP7 is the option for programming the hours that are shown on the hour meter. The hours can be increased but not decreased. This allows the hours on a new GSC to exactly match the hours of a GSC that is being replaced. This improves the tracking of engine maintenance such as oil changes when the GSC is replaced. Also, if the GSC is moved from one engine to another engine, the hours can be changed in order to match the new engine. If the hour meter shows all dashes, the hours can not be reprogrammed. If the hour meter shows all dashes instead of a reasonable numeric value then see Testing and Adjusting, "Troubleshooting Diagnostic Codes". Procedure For Programming The Hour meter
This procedure uses a new GSC with 0 hours as an example. The hour meter in the new GSC will be set to a value of 1,234 hours. The value must be higher than the original value. Note: Service mode cannot be entered when the ECS is in the AUTO position. Note: Any active shutdown fault must be made inactive in order to access service mode. A FLASHING shutdown indicator means that a shutdown fault exists. To temporarily change a shutdown fault from an active shutdown fault to an inactive shutdown fault, turn the ECS to the OFF/RESET position. To permanently change a shutdown fault from an active shutdown fault to an inactive shutdown fault, the fault must not be occurring. Also, the ECS must be turned to the OFF/RESET position. If the jumper from terminal 6 to terminal 9 is not installed on the ECS, then the GSC will not power up in OFF/RESET and any active shutdown fault must be corrected before entering service mode.
Turn the ECS to the STOP position in order to shut down the engine. Enter service mode and enter the password. "OP 1" is showing on lower display. See Systems Operation, "Service Mode" for more information. See Systems Operation, "Password Entry OP3" for more information.
Press "SCROLL UP" key six times. "OP 7" is showing on the lower display.
Press "SELECT" key. The present value for the hour meter is showing.
. Press "SELECT" key. "000000" is