BLOCK 3232542 - Caterpillar

Only inject the ether while you are cranking the engine. Use the ether sparingly. Excessive ether can cause piston damage and ring damage. Ether should only be used for the purpose of cold weather starting. Use ether when temperatures are below 0°C (+32°F). Refer to the Operation and Maintenance Manual, "Engine Starting" for further information.
Illustration 1 g00553597
Ether Starting Aid - Push in the button for the ether starting aid. When the button is released, a premeasured amount of ether is injected into the engine air intake.
Illustration 2 g02810000
Ether Starting Aid (9EM7400-Up) - Push in the top of the button for the ether starting aid. When the button is released, a premeasured amount of ether is injected into the engine air intake.