HOSE AS-REFRIGERANT 3729530 - Caterpillar

Illustration 1 g06092127
(1) Wait to Disconnect Lamp
(2) Battery Disconnect SwitchBattery disconnect switch (2) is located inside the rear access door on the right side of the machine.
Illustration 2 g00406959Battery Disconnect Switch
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.Wait to Disconnect Lamp (1) - This lamp is illuminated anytime that the engine start switch is in the ON position. This lamp is also illuminated when the DEF pump is purging fluid from the system.
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.
Illustration 3 g03408962
Never move the battery disconnect switch to the OFF position while the engine is operating. Serious damage to the electrical system could result.
Observe condition of Wait to Disconnect lamp (1) that is located close to the battery disconnect switch (2). Turn off battery disconnect switch (2) to the OFF position only after the Wait to Disconnect lamp is no longer illuminated.
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 off the battery disconnect switch. The battery remains connected to the electrical system when you turn off the engine start switch.Turn the battery disconnect switch to the OFF position and remove the key when you service the electrical system or any other machine components.Checking the Battery Disconnect System
To ensure no damage to the engine occurs, verify that the engine is fully operational before cranking the engine. Do not crank an engine that is not fully operational.
Perform the following procedure in order to check the battery disconnect system.
With the battery disconnect switch in the ON position, verify that electrical components in the operator compartment are functioning. Verify that the engine will crank.
Turn the battery disconnect switch to the OFF position.
Verify that the following items are not functioning: electrical components in the operator compartment and engine cranking. If any of the items continue to function with the battery disconnect switch in the OFF position, contact your Cat dealer.