TROUBLES AND ACTIONS OPERATION Problem Main causes Remedy •Low-grade fuel being used •Overheating •Change to specified fuel •Refer to “Radiator water level moni- tor lights up“ as above •Replace muffler (•Adjust valve clearance) Abnormal noise generated (combus- tion or mechanical) •Damage inside muffler •Excessive valve clearance Electronic Control System 3 When the user code is shown on the display portion of the machine monitor, take the respective measures shown in the self-diagnosis chart below. Machine Monitoring System (*) For details of the method of handling the emergency pump drive switch and swing holding brake cancel switch, see SWITCHES (3-17).
3-132 Monitor display Failure mode Action E02 Error in pump control system When emergency pump drive switch is moved up, normal operations are possible, but have inspection carried out imme- diately. (*) E03 Error in swing brake system Move swing holding brake release switch up to release brake. When applying swing brake, operate swing lock switch manu- ally. Depending on cause of failure, it may be impossible to release brake. In any case, have inspection carried out imme- diately. (*) E05 Error in governor system Governor controller does not work. Operate governor lever manually. To secure at FULL position, there is a hole in the bracket to install the lock bolt.
In this case, have inspection car- ried out immediately. When no user code is displayed but work equip- ment and swing cannot be operated Have inspection carried out immediately.