Diagnostic Information TM2361 (24JUN08) 9010-15-3 450DLC Excavator Operation and Tests 062608 PN=273 4 Starting System Check Check the starting system. 1. Check fuses. 2. Battery relay check. 3. Starter (M1) solenoid check. 4. Starter (M1) motor check. 5. Battery voltage check. 6. Starter protection relay check. 7. Glow plug relay check (colder temperatures). For more information on starting system: See Starting and Charging Circuit Theory of Operation. (Group 9015-15.) See Electrical Component Checks. (Group 9015-20.) Is starting system ok? YES: Go to Fuel System Test. NO: Repair starting system and retest. – – –1/1 9010 15 3 5 Fuel System Test Check fuel system in the following procedure.
1. Check the high pressure line and low pressure line for leaks, kinks, or obstructions. Check in the following order. • Fuel filters (water separator and final filters). • Fuel tank (pump strainer). • Fuel system lines. 2. Check fuel lines, fuel filter, and inside of the fuel tank for freezing or waxing (cold temperatures). 3. Check the supply line inside the fuel tank for debris. Are any fuel system problems present? YES: Repair and retest. NO: Go to Electrical Interference Check. – – –1/1 6 Electrical Interference Check Check the condition of accessory electrical equipment such as radio and lights. Does the engine start when the accessory electrical equipment is powered off? YES:
Repair electrical equipment. NO: Go to Mechanical Engine Check – – –1/1