Tables
14.7.16
Kapitel/Chapter 10: Tables - Seite/Page 95
10. Tables
10.1 Troubleshooting
GENERATOR OUTPUT VOLTAGE TOO LOW
If the generator delivers less than 24V current („undervoltage“), there can be various reasons for this:
Cause
Solution
PGMi is overloaded.
Reduce the electrical load. (Switch off load)
Motor is not reaching the rated rpm.
Refer to „motor faults“ section.
MOTOR DOES NOT TURN OVER WHEN STARTING
Cause
Solution
Battery main switch is switched off.
Check the position of the battery main switch, if necessary switch on.
Battery voltage not sufficient.
Check that connection is firm and whether corrosion has occurred.
Starting current fault.
The voltage of full batteries fall to a maximum of 11V. The wiring is
severed if the voltage does not drop. The battery is discharged if the
voltage drops further.
MOTOR TURNS OVER BUT DOES NOT START
Cause
Solution
Stop solenoid valve not opening.
Check wire connections and circuitry to solenoid valve. (ref. DC wiring
diagram: Relay K2, Fuse)
Fuel pump does not operate.
Check fuel-filter and pump: clean if necessary.
Lack of fuel.
Check fuel supply.
Glow-plugs not working correctly.
Check glow plugs and heating time.
Too much air in fuel lines.
Test fuel system for leakage. Bleed air from fuel system (refer to section
„Air-bleeding of the Fuel System“).
Fuel filter blocked.
Replace fuel filter.
Low compression pressure.
See Kubota motor-manual.
MOTOR DOES NOT TURN OVER AT THE NORMAL SPEED DURING THE STARTING PROCESS
Cause
Solution
Starter battery voltage insufficient.
Check battery.
Damaged bearing(s) piston (seized).
Repairs need to be carried out by Kubota-Service. (refer to Kubota
motor-manual)
Cooling water in combustion chamber.
1. Turn generator „OFF“ at control panel.
2. Remove the glow plug (see Kubota-manual).
3. Rotate the motor by hand carefully.
4. Check if there is water in the oil and change both oil and filter if
necessary.
5. Determine cause for excess water in the combustion chamber. The
excess water can be caused by a defective air vent in the cooling water
system, which should be checked and cleaned, or replaced if faulty.
MOTOR RUNS IRREGULARLY
Cause
Solution
Faulty centrifugal injector governor.
Have the centrifugal governor inspected by a Kubota-Service
technician.
Too much air in fuel lines.
Bleed air from fuel system.
