TM2361 (24JUN08) 9005-10-28 450DLC Excavator Operation and Tests 062608 PN=244 Operational Checkout Procedure Heater and Air YES: Check complete. Conditioning Circuit 1 2 3 4 5 6 7 8 9 Check NO: Heater does not operate. Check air conditioner and heater 20 OFF A fuse (F3) (Marked DENSO MODE AUTO HEATER). See Fuse and FULL AUTO AIRCONDITIONER TEMP Relay Specifications. (Group 9015-10.) A/C NO: Check system operation. See Heating 16 15 14 13 12 11 10 9005 and Air Conditioning 10 Operational Checks. 28 T145706 –UN–21SEP01 (Group 9031-25.) 1—OFF Switch NO: Check wiring 2—Fan Speed Increase Switch harness. See Cab 3—Display Harness (W1) Wiring 4—Defrost Vent Indicator Diagram.
(Group 5—Rear Vent Indicator 9015-10.) 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 heater and air conditioner OFF switch (1). Start engine. Run engine until normal operating temperature is reached. Press temperature increase switch (7) to maximum heat position. FEEL:
Does warm air come from the vents? Press temperature decrease switch (11) to maximum cold position. LISTEN: Does air conditioner compressor clutch solenoid “click”? FEEL: Does cool air come from the vents?
– – –1/1 Operational Checkout Procedure Heater and Air Conditioning Circuit Check 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 heater and air conditioner OFF switch (1). Start engine. Run engine until normal operating temperature is reached. Press temperature increase switch (7) to maximum heat position. FEEL: Does warm air come from the vents? Press temperature decrease switch (11) to maximum cold position. LISTEN: Does air conditioner compressor clutch solenoid “click”? FEEL: Does cool air come from the vents? YES: Check complete. NO: Heater does not operate. Check air conditioner and heater 20 A fuse (F3) (Marked HEATER).
See Fuse and Relay Specifications. (Group 9015-10.) NO: Check system operation. See Heating and Air Conditioning Operational Checks. (Group 9031-25.) NO: Check wiring harness. See Cab Harness (W1) Wiring Diagram. (Group 9015-10.) – – –1/1 9005 10 28