PANEL AS 1569016 - Caterpillar

Illustration 1 g01148760
Engine shutdown circuit
The components of the engine shutdown circuit are the engine shutdown switch and the Engine Electronic Control Module (Engine ECM).
Illustration 2 g01147212
Right side view of machine
(1) Engine shutdown switch
Illustration 3 g01153775
Left side view of engine
(2) Engine ECM The engine shutdown switch is used on the machine to provide the Engine ECM with a engine shutdown mode.Engine ECM (2) monitors engine shutdown switch (1) for a change in status. The engine shutdown switch has two sets of contacts: normally closed (NC) and normally open (NO). The Engine ECM has two inputs: normally closed (NC) and normally open (NO). When the status of the engine shutdown switch changes from normally closed (NC) to normally open (NO), the Engine ECM will shut the engine down.The engine shutdown switch will reset when the knob is turned clockwise. This shutdown method should only be used in an emergency.