Lubricating Oil Contaminated - NC HT1.0 Original Instructions Manual

CHART C2—Lubricating Oil contaminated
Cause
Coolant in the lubricating oil, internal engine
component leaks.
Lubricating oil sludge excessive.
Fuel in the lubricating oil, engine operating
too cold.
Fuel lift pump leaking.
One or more injector worn or
malfunctioning.
Worn or malfunction fuel injection pump
(FIP). Injection pump not delivering fuel.
Internal bearing or component damage.
Fault Finding
Refer to Chart D1.
Change oil & filter.
Review/reduce the lubricating oil change intervals. If operating in
arduous conditions change oil more frequently.
Make sure the correct lubricating oil is being used, Refer to Fluids
& Lubricants section.
Review the operation for excessive idling resulting in the engine
running below normal temperature.
Repair or replace the fuel lift pump.
Check and externally clean the injector. If the problem still
persists, the injector must be checked by a FIE specialist or replace
with new.
Check for operation of the FIP.
The FIP must be taken to a local FIE specialist to have the fuel
delivery timing checked. Ensure that all obvious causes have been
eliminated before removing the FIP. (Check with local Kubota
agent)
Have oil sample analysed. Repair engine as required.
Remedy
74