TM2361 (24JUN08) 9005-10-30 450DLC Excavator Operation and Tests 062608 PN=246 Operational Checkout Procedure LOOK: Does A/C indicator come ON? YES: Check complete. Push temperature increase switch (7) a few times. NO: Heater fan does not blow air. Check air LOOK: Does temperature setting indicator (13) show increasing numbers? conditioner and heater 20 A fuse (F3) (Marked FEEL/LISTEN: Does fan speed increase? HEATER). See Fuse and Relay Specifications. Push temperature decrease switch (11) a few times. (Group 9015-10.) LOOK: Does temperature setting indicator show decreasing numbers? NO: Check system operation. See Heating 9005 Does air conditioner come ON automatically?
and Air Conditioning 10 Operational Checks. 30 Push mode switch (8) a few times. (Group 9031-25.) LOOK: Does auto switch (9) indicator go OFF? NO: Check wiring harness. See Cab LOOK: Does a different combination of vent indicators (4), (5), or (6) illuminate? Harness (W1) Wiring Diagram. (Group FEEL/LISTEN: Does air come from vents as shown by indicators (4), (5), or (6)? 9015-10.) Air conditioner can be controlled manually by pushing the A/C switch when operating in auto mode. Push A/C switch (10). LOOK: Does A/C switch indicator go OFF? Does air conditioner stop operating? (Fan will continue to run.) Temperature can be displayed in Celsius or Fahrenheit.
With air conditioner and heater operating, push temperature increase (7) and temperature decrease (11) switches at the same time for more than 3 seconds. LOOK: Does temperature setting indicator (13) change from Celsius to Fahrenheit or Fahrenheit to Celsius? –19– –2/2 Operational Checkout Procedure LOOK: Does A/C indicator come ON? Push temperature increase switch (7) a few times. LOOK: Does temperature setting indicator (13) show increasing numbers? FEEL/LISTEN: Does fan speed increase? Push temperature decrease switch (11) a few times. LOOK: Does temperature setting indicator show decreasing numbers? Does air conditioner come ON automatically? Push mode switch (8) a few times. LOOK:
Does auto switch (9) indicator go OFF? LOOK: Does a different combination of vent indicators (4), (5), or (6) illuminate? FEEL/LISTEN: Does air come from vents as shown by indicators (4), (5), or (6)? Air conditioner can be controlled manually by pushing the A/C switch when operating in auto mode. Push A/C switch (10). LOOK: Does A/C switch indicator go OFF? Does air conditioner stop operating? (Fan will continue to run.) Temperature can be displayed in Celsius or Fahrenheit. With air conditioner and heater operating, push temperature increase (7) and temperature decrease (11) switches at the same time for more than 3 seconds. LOOK:
Does temperature setting indicator (13) change from Celsius to Fahrenheit or Fahrenheit to Celsius? YES: Check complete. NO: Heater fan does not blow air. 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.) –19– –2/2 9005 10 30