SECTION 9-TROUBLE SHOOTING
● Refer to following chart if you find the machine not working correctly. Stop the engine first before
start inspection.
1. Engine related condition
Condition Check Point
Remedy
Safety switch may be functioning.
Set the PTO lever to “OFF”, release your
foot from the traveling pedal, and turn the
key switch pressing the brake pedal.
Level of battery electrolyte or battery
discharge
Replenish the battery electrolyte to the
specified level and charge the battery fully.
Looseness or corrosion of battery
terminals
Clean and tighten the terminals firmly.
Apply grease to prevent rust.
Blowout of fuse
Replace the fuse with new one.
Failure of switch
Subject to repair or replace at a service
plant.
Starter does not rotate
when the key switch is
turned.
Failure of starter motor
Subject to repair or replace at a service
plant.
Fuel level in the fuel tank Replenish the fuel.
Air mixed in the fuel
Check the fuel pipe from the fuel tank to
injection pump.
Fuel tap may be at the “C” (close)
position.
Set the fuel tap to the “O” (open) position.
Starter rotates but the
engine does not start.
Key stop solenoid harness may be
dislocated.
Connect the harness firmly.
Air may be mixed in the fuel.
Check the fuel pipe from the fuel tank to
injection pump.
Water may be mixed in the fuel.
Discharge water and change the fuel with
light oil.
Clogging of injection nozzle Repair or replace.
Engine rotates
irregularly.
Clogging of fuel filter Wash or replace.
Insufficient cooling water Replenish the cooling water.
Loosened or damaged fan belt Adjust the tension or replace the belt.
Clogging of radiator fin Wash or replace.
Insufficient engine oil Replenish the oil.
Overheated engine
Overload operation Reduce the load.
Clogging of air cleaner Inspect and clean the air cleaner.
Seized nozzle
Insufficient compression pressure
Engine is running with
low power.
Improperly adjusted valve clearance
Subject to repair by a service plant.
Warning
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