GASKET 7B3822 - Caterpillar

Table 1
Internal Battery Replacement
Hardware
Version Recommended Battery
Replacement
Interval
V2.0 Every two years(1)
V3.0 Every five years(2)
(1) Battery replacement should be performed annually in climates with ambient temperatures in the range of 0 to −40 °C (32 to −40 °F).
(2) Battery replacement should be performed at a 2 to 3 year interval in climates with ambient temperatures of 0 to −40 °C (32 to −40 °F).See the preceding table for the recommended battery replacement interval. In order to ensure that stored information is retained, periodic replacement of the backup battery is essential. When a failed battery is detected the Vital Information Management System (VIMS)® program displays an operator warning on the message center. The operator warning indicates a need for battery replacement. Note: If the main module is disconnected from the supply voltage during replacement of the V2.0 internal battery, at least 60 seconds must elapse before communications with the service tool (laptop computer) can be established.
Illustration 1 g00568367
ECM
Procedure
Note: If the warning is present for B/U BATT LO, DO NOT turn the key start switch to the OFF position. Go directly to STEP 4.
Stop the machine and shut down the engine.
The disconnect switch must remain in the ON position.
Turn the key start switch or the VIMS® service keyswitch to the ON position.
Connect the off-board service tool to the RS-232 port and download all stored information. Failure to download the information may cause the loss of all data.
The following switches remain in the ON position:
Disconnect switch
Key start switch or the VIMS® service keyswitchWith these switches in the ON position during battery replacement, the date and time of day are less likely to require re programming.
Remove the battery from the side of the VIMS® main module for V2.0 hardware. For V3.0 hardware, remove the cover that is formed in the shape of an egg on the top of the main module. The battery has four contacts. The contacts are located on the bottom side of the battery. Pry the battery out with a seal ring pick. Note: This opening exposes the inside of the main module to dirt and water. Be sure to keep this area clean.
Remove the insulating sleeve from the new V2.0 battery. Install the battery into the holder. The button (+) faces away from the cap.
Check the cover O-ring seal. Verify the following:
The cover O-ring seal is properly placed.
The cover O-ring seal is not damaged.
Install the cover and the cover O-ring seal. Tighten the cover securely.
The circuit of the real time clock in the main module is powered by this battery. A failure of the battery may result in the loss of the settings for the date and the clock of the VIMS® program. Battery replacement may also result in the loss of the settings of the date and the clock of the VIMS® program. Power up after replacing the battery may cause the date and the clock of the VIMS® program to reset to the default setting of 01/01/00 00:00:00. Use the off-board service tool to set the date and the clock of