Probable Cause(s):
* Battery Has Low Output
* Wires Or Switch Has Defect
* Starting Motor Solenoid Has Defect
* Starting Motor Has A Defect
* Internal Problem Prevents Engine Crankshaft From Turning
* Problem With Accessory Equipment
1. Battery Has Low Output:
Check condition of battery. Charge battery or make replacement as necessary (refer to Special Instruction SEHS7633, for Battery Test Procedure). Load test batteries (refer to Special Instruction SEHS9249, for use of 4C4911 Battery Load Tester.
2. Wires Or Switch Has Defect:
Make Reference to Problem 25: Starting Motor Does Not Turn.
3. Starting Motor Solenoid Has A Defect:
Make Reference to Problem 25: Starting Motor Does Not Turn.
4. Starting Motor Has A Defect:
Make Reference to Problem 25: Starting Motor Does Not Turn.
5. Internal Problem Prevents Engine Crankshaft From Turning:
If the crankshaft cannot be turned after disconnecting the transmission and/or the power take-off, remove the unit injectors and check for fluid in the cylinders while turning the crankshaft. If fluid in the cylinders is not the problem, the engine must be disassembled to check for other internal problems. Some of the possible problems are bearing seizure, piston seizure, and valves making contact with the pistons.
NOTE: Refer to Disassembly And Assembly, SENR6553, for the proper procedure for unit injector removal and installation.
6. Problem With Accessory Equipment:
Check driveline for free movement. Disconnect or remove PTO drive(s). Remove and inspect engine accessories that may lock up the engine (air compressor, power steering pump, lubrication oil pump, hydraulic oil pump, etc). Repair or replace any accessory that is binding or has seized.