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17-2
17. TROUBLESHOOTING
Sc2400 Operator’s Manual
2. Machine
6 The engine
overheats.
z Insufficient engine coolant • Add engine coolant.
• Check the radiator and the lines to and
from the radiator for leakage. If leakage is
found, contact your local Cub Cadet
Yanmar dealer for technical assistance.
z The engine is overloaded. • Operate the tractor carefully. Avoid
overloading.
z Insufficiently tensioned fan belt • Adjust the fan belt to the specified tension
value; or replace it.
z The radiator core is blocked. • Eliminate the cause of blocking.
z Poor quality of engine coolant • Possibly, sludge has accumulated on the
engine water jacket. Contact your local
Cub Cadet Yanmar dealer for technical
assistance.
Symptom Cause Remedy
1 The machine
excessively
vibrates.
z Engine speed is too low. • Run the engine at a higher appropriate
speed.
z The Power Take Off (PTO) connecting
the machine with the mounted
implement is not securely connected.
• Disconnect the Power Take Off (PTO)
shaft, and reconnect it. Check if excessive
vibration reoccurs. If excessive vibration
persists, immediately stop operation and
contact your local Cub Cadet Yanmar
dealer for technical assistance.
z The engine throttle has not been
correctly adjusted.
• Contact your local Cub Cadet Yanmar
dealer for technical assistance.
2 Engine has
successfully
started, but the
machine fails to
operate.
z Parking brake is in the engaged state. • Disengage the parking brake.
z Insufficient transmission oil,
deteriorated transmission oil or
clogged transmission filter
• Check the amount and quality of the oil.
Replace deteriorated oil; refill as
necessary. Check the filter for clogging,
and replace the clogged filter with a new
one.
z Transmission oil is too cold. • Start the engine, and warm up. Only then,
operate the tractor.
3 3-point hitch does
not rise at all.
z Insufficient transmission oil,
deteriorated transmission oil or
clogged transmission filter
• Check the amount and quality of the oil.
Replace deteriorated oil; refill as
necessary. Check the filter for clogging,
and replace the clogged filter with a new
one.
z Transmission oil is too cold. • Start the engine, and warm up.
z Excessively heavy implement on the 3-
point hitch
• Use an implement of an acceptable
weight.
4 3-point hitch
lowers too slowly.
z Hydraulic pressure stop valve is in an
insufficiently open position.
• Open the hydraulic pressure stop valve.
5 3-point hitch does
not lower at all.
z Hydraulic pressure stop valve is in the
closed position.
• Open the hydraulic pressure stop valve to
an appropriate position.
6 3-point hitch
lowers too fast.
z
Hydraulic pressure stop valve is in an
excessively open position.
• Close the hydraulic pressure stop valve to
an appropriate position.