HOUSING 4378597 - Caterpillar

Table 3
AEC Mode Position of AEC Switch Setting of Engine Speed Dial Position of Manual Low Idle Switch Description of Mode
First stage OFF 3 to 10 OFF The electronic controller automatically reduces engine speed by 100 rpm after there has been no hydraulic demand for approximately 5 seconds.
Second stage ON 3 to 10 OFF The AEC system in the electronic controller will automatically reduce the engine rpm. The rpm is reduced to approximately 1100 rpm after there has been no hydraulic demand for approximately 5 seconds.
Manual low Idle ON or OFF 3 to 10 ON The engine speed is reduced to approximately 1100 rpm. One Touch Low Idle
Illustration 5 g03740028
(1) Machine ECM
(2) Operator monitor
(3) Engine speed dial
(9) Pump 1 pressure sensor
(10) Pump 2 pressure sensor
(11) Implement pressure switch
(12) One touch low idle switch (right joystick) When one-touch low-idle switch (12) is pressed, and the machine is not under load (all levers and pedals in the neutral position), the engine RPM can be set lower than the RPM set by