Fiat Kobelco EX355 Tier2, Technical Manual

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EX355 W5-9-1
TROUBLESHOOTING
HARD STARTING
Condition Possible Cause Correction
Starter motor does not Loose battery cable terminals
turn over Poor battery connections due to rusting Clean and/or retighten the battery
cable terminals
Battery discharged or weak Recharge or replace the battery
Fusible link shorted Replace the fusible link
Defective starter switch or starter relay Replace the starter switch or starter
relay
Defective magnetic switch of starter Repair or replace the magnetic
motor or starter relay switch or starter relay
Defective starter motor Repair or replace the starter motor
Starter motor operates Loose battery cable terminals
but engine does not Poor battery connections due to rusting Clean and/or retighten the battery
turn over cable terminals
Battery discharged or weak Recharge or replace the battery
Loose fan belt Adjust the fan belt tension
Defective starter motor pinion gear Replace pinion gear
Defective magnetic switch of the starter Repair or replace the magnetic
motor switch
Worn starter motor Replace the brush and /or brush
Weak brush spring spring
Piston,crank bearing seizure,or other Repair or replace the related parts
damage
Engine turns over but Air in the fuel system Bleed air from the fuel system
does not start Defective engine stop mechanism Replace the engine stop mechanism
Control wire improperly adjusted Adjust the control wire
Fuel tank is empty Fill the fuel tank
Clogged or damaged fuel lines Repair or replace the fuel lines
Loose fuel line connections Retighten the fuel line connections
Clogged fuel filter element Replace the fuel filter element
or cartridge
Fuel feed pump strainer is clogged Clean the fuel pump strainer
Defective feed pump Repair or replace the feed pump
Poor return of the engine stop button Completely return the engine stop
button
Use of the wrong fuel Use the recommended fuel
Water particles in the fuel Change fuel
Air in the injection pump Bleed air from the fuel system
Injection nozzle sticking Replace the injection nozzle
Injection nozzle starting pressure Adjust or replace the injection
too low nozzle
Improper spray condition
Improper injection pump control rack Repair or replace the injection pump
operation control rack
Injection pump plunger worn or stuck Replace the injection pump plunger
assembly
Injection pump camshaft seizure or Replace the injection pump
other damage camshaft