Crescent CS7010 - Troubleshooting; No crank - The starter does not engage; Cranks but does not start

168Service Manual – CS7010™ 28 - Engine System, Diesel
Troubleshooting
No crank – The starter does not engage
Possible causes Check
36vBatteryPackdrained Batterypackvoltage
Engine Battery Load test battery
Starter
Checkpowertostartersolenoid
Battery Cable Checkvoltagedropfrombatterypositivetostarterbatteryterminal.
Engine Ground Checkvoltagedropfromstartercasetobatterynegative.
No voltage to the starter solenoid
• Auxiliary Relay
• Key Switch
• Main Machine controller
Checkfortrippedcircuitbreaker#9(CB9)
CheckforpowertothemainmachinecontrollerfromtheAuxiliaryRelay
CheckforpowertothemainmachinecontrollerfromKeySwitch
crankingcircuit
Checkpowers,grounds,inputsandcrankrequestoutput
Cranks but does not start
Possible causes:
• No fuel
– Empty Tank
– Insufcient fuel supply
◦ Clogged Filter
◦ Clogged line
◦ Fuel pump
• Contaminated fuel
• APECS governor controller
• Engine RPM Sensor
• Actuator
• Incorrect injection timing
• Injection pump
• Mechanical engine
– Insufcient compression
– Fuel camshaft worn
• Plugged Intake
• Plugged Exhaust