GASKET-TO TANK 5J3140 - Caterpillar

Illustration 1 g03422039
Do not turn off the battery disconnect switch until the indicator lamp has turned off. If the switch is turned off when the indicator lamp is illuminated the Diesel Exhaust Fluid (DEF) system will not purge the DEF. If the DEF does not purge, DEF could freeze and damage the pump and lines.
Never move the battery disconnect switch to the OFF position while the engine is operating. Serious damage to the electrical system could result.
Battery Disconnect Switch - The battery disconnect switch can be used in order to disconnect the battery from the engines electrical system. The key must be inserted into the battery disconnect switch before the battery disconnect switch can be turned.
ON - To activate the electrical system, insert the disconnect switch key and turn the battery disconnect switch clockwise. The battery disconnect switch must be turned to the ON position before you start the engine.
OFF - To deactivate the electrical system, turn the battery disconnect switch counterclockwise to the OFF position.The battery disconnect switch and the engine start switch perform different functions. The entire electrical system is disabled when you turn the battery disconnect switch to the OFF position. The battery remains connected to the electrical system when you turn the engine start switch to the OFF position.Turn the battery disconnect switch to the OFF position and remove the key when you service the electrical system or any other engine components.Turn the battery disconnect switch to the OFF position and remove the disconnect switch key after you operate the engine. This will prevent the battery from being discharged. The following problems can cause battery discharge:
short circuits
current draw via some components
vandalism