ENGINE AR 1252843 - Caterpillar

Stability Alarm Switch - Press the top of switch (41) to activate the stability alarm. The stability alarm must be activated when you perform an object handling operation. When you lift a load that exceeds the maximum rated load the stability alarm will sound and an action light will illuminate on the right side console, refer to Operation and Maintenance Manual, "Monitoring System" for more information. To disengage the stability alarm press the bottom of switch (41) . Note: To ensure that the stability alarm is working properly before use press the top of switch (41) to activate the stability alarm. Fully raise the boom and stall the boom against the stops. The stability alarm should sound and the action light should illuminate.Note: The stability alarm switch should not be activated during normal digging.Fan Switch (42)
Heater Fan Switch - This switch controls the three-speed blower fan motor.Press the bottom of the switch for the low position of the fan.Press the switch to the middle position for the medium fan speed.Press the top of the switch for the high fan speed.Variable Temperature Control (43)
Heating Variable - Turn the knob between COOL (left) and WARM (right). Heating and Cooling Control (44)
Heating - Press the top of the switch to the ON position. Turn the blower fan switch control to the desired position (LOW, MEDIUM, or HIGH). Adjust the temperature control knob for the desired temperature. Press the switch to the middle position for the blower OFF position.
Cooling (If Equipped) - Press the bottom of the switch to the air conditioning ON position. Turn the blower fan switch control to the desired position (LOW, MEDIUM, or HIGH). Adjust the temperature control knob for the desired temperature. Note: In order to provide maximum cooling, close all unused vents when you are using the cooling system.Note: The air conditioning will automatically shut off when the engine RPM falls below 800 RPM.Pressurizing - When heating or cooling is not desired, pressure inside the cab will help keep out dust.To produce the volume of air that is needed to keep out dust, set the blower fan switch control to LOW, to MEDIUM, or to HIGH. Adjust the temperature control knob to the desired temperature.Defogging - Use the cooling system to remove moisture from the air in the cab. This will prevent moisture from forming on the window and on the windows. Press the switch to the air conditioning ON position. Turn the blower fan switch control to the desired position (LOW, MEDIUM, or HIGH). Adjust both control knobs until the moisture level is lowered and the window and side windows are free of moisture.VENTILATION - When heating, cooling, or defogging is not desired, the system can be used in order to provide ventilation. Turn the blower fan switch to the desired position (LOW, MEDIUM, or HIGH). Adjust the temperature control knob to the desired temperature.Hydraulic Lockout (45)
Hydraulic Lock Switch - The switch allows the operator to lock the hydraulic controls. Press the switch in order