Troubleshooting; How To Use The Troubleshooting Table; Engine - Cub Cadet EX2900 Operator's Manual

17. TROUBLESHOOTING

1. How to Use the Troubleshooting Table

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

Symptom
1 Engine does not
start or engine
starts, but stalls
immediately.
2 Though the engine
has started, it fails
to run smoothly or
it is not powerful.
3 The engine has
successfully
started but
suddenly stopped.
4 Blackish exhaust
5 Pale bluish
exhaust
17. TROUBLESHOOTING
Cause
Diesel fuel is not flowing to the engine. • Check that fuel is in the fuel tank. Refuel
Air is trapped in the fuel.
Water is trapped in the fuel.
In cold weather, the engine oil viscosity
is excessively high, and this causes
greater resistance. As a result, the
engine speed does not increase.
The power of the battery is too low and
the starter fails to accelerate to a
speed sufficient for starting the engine.
Stale diesel fuel (owing to prolonged
storage)
Contaminated diesel fuel
Clogged air cleaner
The fuel shut-off valve is not in the fully
OPEN position.
No diesel fuel
The fuel shut-off valve is not in the
OPEN position.
Poor quality of diesel fuel
Too much engine oil
Clogged air filter
Failed injection nozzle
Poor quality of diesel fuel
Remedy
as necessary.
• Check if the fuel filter is clogged. Replace
the clogged filter.
• Check the fuel line for looseness.
Retighten any loose connection.
• Remove water from the fuel. Refill the
diesel fuel.
• 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.)
• 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.
• Replace the diesel fuel.
• Replace the diesel fuel.
• Replace the air cleaner.
• Fully open the fuel shut-off valve.
• Refuel.
• Open the fuel shut-off valve.
• Replace the diesel fuel and fuel filter.
• Drain the engine oil to the specified level.
• Clean or replace the air filter.
• Contact your local Cub Cadet Yanmar
dealer for technical assistance.
• Replace the diesel fuel and fuel filter.
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Ex2900 / 3200 Operator's Manual