Generator Faults
9.12.10 Panda_5000i_PMS_eng.R01 - Kapitel/Chapter 7: Generator Faults Seite/Page 103
7.6.2 Diesel motor fails to start
7.6.3 Starter is turning motor, but fails to start
7.6.4 Motor does not achieve enough speed during starting process
7.6.5 Motor runs unsteady
7.6.6 Motor speed drops
Cause Solution
Starter battery switched "OFF". Check position of battery switch and switch "ON" (if installed).
Starter battery voltage insufficient (battery too weak). Inspect battery terminals and cables for a good electrical connection (In-
spect against corrosion, tattered wires, etc.).
Starting current disrupted. During the normal starting process, the battery voltage drops to 11V with
a fully charged battery. If the voltage does not drop during starting, the
electrical connection is faulty. If the battery voltage drops lower than 11V,
then the battery has been discharged.
Cause Solution
Fuel stop solenoid valve not opening. Check wire connections and circuitry to solenoid valve. (ref. DC wiring
diagram: Relay K2, Fuse)
Fuel pump not working. 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
"Bleeding Air from Fuel System").
Fuel-filter blocked. Replace fuel filter.
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 mo-
tor-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 neces-
sary.
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.
Cause Solution
Disruption in the area of the injection systems’ automatic advance. Repair / Check the automatic advance via the motor service.
Air in the fuel system. Ventilate the fuel system.
Cause Solution
Lack of fuel Check fuel supply system:
- fuel filter, renew if necessary
- check fuel pump
- check fuel lines (bleed if necessary)
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