Kubota KJ-S150VX User Manual

38
ENGLISH
TROUBLESHOOTING
쎱 When Output is Insufficient 쎱 When Engine Suddenly Stops
Cause Countermeasures
Lack of fuel
*Check the fuel tank and refill the
fuel, if necessary.
*Also check the fuel system for air
or leaks.
Bad nozzle
*If necessary, replace with a new
nozzle.
Moving parts are
overheated due to
shortage of
lubrication oil or
improper
lubrication.
*Check amount of engine oil with
oil level gauge.
*Check lubricating oil system.
*
At every second oil change, oil
filter cartridge should be replaced.
* Check to see if the engine bearing
clearances are within factory specs.
쎱 When Color of Exhaust Smoke is Black
and Excessive
Cause Countermeasures
Fuel governing
device bad
*Contact dealer for repairs.
Fuel is of extremely
poor quality.
*Select good quality fuel
Use No.2-D diesel fuel only.
Engine is operating in
overload condition.
*Diagnose and eliminate reason
for overload.
Nozzle is bad.
*If necessary, replace with new
nozzle.
Combustion is
incomplete.
*Cause is poor atomization,
improper injection timing, etc.
Because of trouble in injection
system or in poor valve
adjustment, or compression
leakage, poor compression, etc.
Check for the cause.
Cause Countermeasures
Carbon stuck
around orifice of
nozzle piece
*Clean orifice and needle valve,
being very careful not to damage
the nozzle orifice.
*Check nozzle to see if good. If
not, replace with new parts.
Compression is
insufficient.
Leaking valves
*Bad valve and excessive wear of
rings, pistons and liners cause
insufficient compression. Replace
with new parts.
*Grind valves.
Fuel is insufficient.
*Check fuel system.
Overheating of
moving parts
*Check lubricating oil system.
*Check to see if lubricating oil
filter is working properly.
*Filter element deposited with
impurities would cause poor
lubrication. Change element.
*Check that bearing clearances
are within factory specs.
*Check injection timing.
Valve clearance is
wrong.
z Engine model : D1703-EBG,V2203-EBG x
*Adjust valve clearance to 0.18
to 0.22 mm with the engine is
cold.
zEngine model : V3300-EBGx
*Adjust valve clearance to 0.23 to
0.27 mm with the engine is cold.
Air cleaner is dirty
*Clean the element every 250
hours of operation.
Fuel injection
pressure is wrong.
*Adjust to proper pressure.
13.7 Mpa (140 kgf/cm
2
, 1991 psi)
Injection pump
wear
*Do not use poor quality fuel as it
will cause wear of the pump.
Only use No.2-D diesel fuel.
*Check the fuel injection pump
element and delivery valve
assembly and replace as necessary.

Kubota KJ-S150VX Specifications

General

Brand	Kubota
Model	KJ-S150VX
Category	Portable Generator
Language	English