List Of Malfunction Symptom - Kubota V3800-CR-TE4 Diagnosis Manual

V3800-CR-TE4,V3800-CR-TIE4, DM

[3] LIST OF MALFUNCTION SYMPTOM

Malfunctions and corresponding symptoms resulting from the CRS may also be generated from other sources,
such as the engine (mechanical parts), the fuel system, etc. When performing CRS troubleshooting, the aim is not to
quickly determine that the CRS is the cause of a malfunction. Rather, the cause should be exhaustively considered
while verifying the causes listed below.
Malfunction
Area of Fault
symptom
Fuel system
Engine overheat
Lubrication system
Intake system
Fuel system
Insufficient
output
Engine
Other
Intake system
Fuel system
Faulty starting
Electrical system
Lubrication system
Engine
Other
Idle fault Engine
Cause
Poor fuel
Engine oil deterioration.
Inappropriate engine oil.
Faulty oil pump.
Insufficient engine oil level
Clogged air cleaner element.
Air mixed with the fuel system.
Faulty fuel filter.
Poor or inappropriate fuel.
Worn cylinder liner and the piston ring
of the piston. (Low compression
pressure)
Overheat
Clogged air cleaner element.
Insufficient fuel.
Fuel system clogged.
Large amount of intermixing water to
the water separator, element clogging
and deformation.
Air being introduced through fuel
system connection points.
Clogged fuel filter
Fuel feed pump operation fault.
Injection pipe connection loose.
Battery fault
Faulty starter wiring.
Loose battery cable.
Faulty starter operation.
Starting assist device (intake air
heater) fault.
Excessive engine oil viscosity.
Burnt pistons.
Burnt main bearing.
Low compression pressure.
Ring gear damage.
Poor valve clearance
Poor valve seat contact.
Low coolant temperature.
Large difference in cylinder-to cylinder
compression pressure.
1-S5
COMMON RAIL SYSTEM
Action
Switch to the correct fuel (No.2-D diesel fuel).
Change engine oil.
Replace with the appropriate engine oil (API
Service Classification CF grade or higher).
Replace oil pump.
Add engine oil.
Clean or replace air cleaner element.
Perform fuel system air bleeding.
Replace fuel filter.
Switch to the correct fuel (No.2-D diesel fuel).
Overhaul engine.
Refer to "Engine Overheat" items.
Clean or replace air cleaner element.
Add fuel and perform fuel system air bleeding.
Clean the fuel system.
Clean or replace.
Tighten connections.
Replace fuel filter.
Replace fuel feed pump.
Tighten connecting nut.
Inspect battery.
Replace starter wiring.
Tighten battery terminal connections, or replace
cables.
Replace starter assembly.
Replace starting assist device (intake air heater).
Replace with oil of appropriate viscosity.
Replace piston, piston ring and cylinder block.
Replace main bearing and crankshaft.
Overhaul engine.
Flywheel / starter replacement.
Adjust valve clearance.
Break in valve and valve seat, or replace.
Perform warm-up operation.
Overhaul engine.
9Y1200192CRS0941US0
KiSC issued 05, 2012 A