11. EXPLANATION OF COMPONENTS 9. AISS LOW SWITCH Using the AISS LOW switch, it is possible to switch the AISS to AUTO or LOW as desired. The positions are used as follows. k position: LOW position Used when fine control movements are needed, such as when parking in confined spaces. The pilot lamp inside the switch lights up. i position: AUTO position This is used for normal operations. If the switch is set to the AUTO position, the following conditions are actuated. 1. When the machine is stopped, the idling speed is set to LOW speed when the parking brake or retarder are ON. When the parking brake is released to start traveling, the idling speed is set to HIGH speed. 2.
The cooling water temperature is detected, and if the water temperature is low, the idling speed is automatically set to HIGH speed to reduce the time taken for the warming up operation. AE617340 10. APS (STARTING AID) SWITCH This is used when starting in cold areas. The APS monitor will light up while the switch is being pressed continuously, and will go out after approx. 12 seconds to show that the APS function has been completed. For details of the method of operation, see “12.2.2 Starting in cold weather”. AE617350 11. POWER MODE SELECTOR SWITCH The power mode switch can be switched to allow the machine to travel economically in a way suited to the operating conditions. k position:
High power (general operations) This is used for general operating conditions. i position: Economy (traveling in flat areas) This position is used when the emphasis is on reducing fuel consumption, such as when traveling on flat ground where the maximum output is not needed. 2-21