Operational Checkout Procedure TM2361 (24JUN08) 9005-10-29 450DLC Excavator Operation and Tests 062608 PN=245 Heater And Air Conditioner Controls Check (Automatic Temperature Control) 1 2 3 4 5 6 7 8 9 OFF DENSO MODE AUTO FULL AUTO AIRCONDITIONER TEMP A/C 16 15 14 13 12 11 10 T145706 –UN–21SEP01 1—OFF Switch 2—Fan Speed Increase Switch 3—Display 4—Defrost Vent Indicator 5—Rear Vent Indicator 6—Under Seat Vent Indicator 7—Temperature Increase Switch 8—Mode Switch 9—Auto Switch 10—Air Conditioner ON and OFF Switch (A/C) 11—Temperature Decrease Switch 12—Fan Speed Indicator 13—Temperature Setting Indicator 14—Fan Speed Decrease Switch 15—Fresh Air Switch 16—Recirculating Air Switch NOTE:
The air conditioner and heater controller automatically adjusts vent position, fan speed, and intake air source to achieve any temperature set by the operator. Key ON, press OFF switch (1). Start engine. Run engine until normal operating temperature is reached. LOOK: Is one or all of the vent indicators (4), (5), or (6) ON? (Mode switch adjusts vents with OFF switch pushed.) LOOK: Is one air indicator (15) or (16) ON? (Either air switch indicator can be ON when OFF switch is pushed.) Press fan speed increase switch (2) a few times. LOOK: Does the number of fan speed indicator bars (12) increase? FEEL/LISTEN: Does fan speed increase?
(There may be a short delay in fan speed change.) Press fan speed decrease switch (14) a few times. LOOK: Does the number of fan speed indicator bars (12) decrease? FEEL/LISTEN: Does fan speed decrease? Push auto switch (9). – – –1/2 9005 10 29