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17. TROUBLESHOOTING
Ex2900 / 3200 Operator's Manual
17. TROUBLESHOOTING
The troubleshooting table given below is intended to provide a simple guide. If any fault, failure or a
problem that requires repair work has occurred, contact your local Cub Cadet Yanmar dealer for
technical assistance.

1. Engine

1. How to Use the Troubleshooting Table

Symptom Cause Remedy
1Engine does not
start or engine
starts, but stalls
immediately.
zDiesel fuel is not flowing to the engine. •Check that fuel is in the fuel tank. Refuel
as necessary.
•Check if the fuel filter is clogged. Replace
the clogged filter.
zAir is trapped in the fuel. •Check the fuel line for looseness.
Retighten any loose connection.
zWater is trapped in the fuel. •Remove water from the fuel. Refill the
diesel fuel.
zIn cold weather, the engine oil viscosity
is excessively high, and this causes
greater resistance. As a result, the
engine speed does not increase.
•Use a less viscous engine oil. (Be sure to
change to a more viscous engine oil in
summer.) (Consult your local Cub Cadet
Yanmar dealer.)
zThe power of the battery is too low and
the starter fails to accelerate to a
speed sufficient for starting the engine.
•Clean the battery posts and terminals,
then measure the voltage on the battery. If
the voltage is 11 V or lower, replace the
battery with a new one.
2Though the engine
has started, it fails
to run smoothly or
it is not powerful.
zStale diesel fuel (owing to prolonged
storage)
•Replace the die sel fuel.
zContaminated diesel fuel •Replace the diesel fuel.
zClogged air cleaner •Replace the air cleaner.
zThe fuel shut-off valve is not in the fully
OPEN position.
•Fully open the fuel shut-off valve.
3The engine has
successfully
started but
suddenly stopped.
zNo diesel fuel •Refuel.
zThe fuel shut-off valve is not in the
OPEN position.
•Open the fuel shut-off valve.
4Blackish exhaust zPoor quality of diesel fuel •Replace the diesel fuel and fuel filter.
zToo much engine oil •Drain the engine oil to the specified level.
zClogged air filter •Clean or replace the air filter.
5Pale bluish
exhaust
zFailed injection nozzle •Contact your local Cub Cadet Yanmar
dealer for technical assistance.
zPoor quality of diesel fuel •Replace the diesel fuel and fuel filter.