Page 530 - Foton Workshop Manual - Auman EST-M

EG - 14 Engine section – Engine (Cummins ISF3.8)

Failure phenomenon Possible reason Failure elimination

Air compressor not Air system leaking Check if the air system leaks
maintaining sufficient air Air compressor intake or exhaust system Check the assembly of air compressor cylinder head.
pressure leaking If necessary, replace it
Check the sealing parts of unloading valve and valve
Unloading valve failed
body

Air compressor not pumping Air compressor intake or exhaust system Check the assembly of air compressor cylinder head.
gas leaking If necessary, replace it
Air compressor worn excessively or
Replace or reinstall the air compressor
broken inside
Vehicle instrument failure Check the vehicle instrument

The engine speed is too low, not
Increase the engine speed to 1200rpm
possible to charge
Generator belt loose Check the tension f generator belt

Electrical system " open circuit " Check the fuse, wire and connection
Battery cable loose, broken or corroded Check the battery cable and connection
Check the status of battery If necessary, replace the
Battery broken
battery
Generator does not charge or
Generator belt pulley loose Tighten the belt pulley
not charge sufficiently
Battery temperature too high Place the battery far away from a heat source

Test the output of generator If necessary, replace the
Generator or voltage regulator failure
generator or voltage regulator
Generator overloaded or generator
Install a big capacity generator
capacity lower than specification
Current electric error code is current or
Read the error codes and perform service on the
non-current error code high frequency
failures in corresponding with the error codes
counter
Battery cable loose, broken or corroded Check the battery cable and connection

Check the status of battery If necessary, replace the
Battery cell broken
battery
Check the voltage regulator If necessary, replace the
Generator overcharged Voltage regulator failure
voltage regulator

Current electric error code is current or
Read the error codes and perform service on the
non-current error code high frequency
failures in corresponding with the error codes
counter

EG-014