Troubleshooting Chart - Yanmar 6LPA-STP2 Operation Manual

TROUBLESHOOTING CHART

Symptom
Indicators light on the
instrument panel and
alarm sounds during
operation
• Engine oil low
pressure alarm
indicator comes on
• Fresh water (coolant)
level alarm comes on
• Fresh water (coolant)
high temperature
alarm comes on
• Gear oil alarm comes
on
• Fuel filter alarm comes
on
• Exhaust alarm comes
on
Faulty Warning Devices
6LPA Series Operation Manual
Probable Cause
Shift to low speed operation immediately, and check which indicator has come on.
Stop the engine and inspect. If no abnormality is identified and there is no problem
with operation, return to port at lowest speed and request repairs.
Engine oil level is low.
Engine oil filter clogged.
Coolant / fresh water in coolant
recovery tank is low.
Coolant / fresh water in coolant
recovery tank is low.
Leakage in fresh water cooling
system causing temperature to
rise.
Contamination inside cooling
system.
Fresh water cooling pump
damaged.
Insufficient drive oil.
Water level in fuel / water
separator too high.
Insufficient discharge of cooling
seawater.
Check that seacock is open.
Damaged seawater pump.
Do not operate the engine if alarm devices are not repaired. Serious accidents may
result if abnormalities are not identified due to faulty indicators or alarm.
© 2007 Yanmar Marine International
TROUBLESHOOTING
Measure
Check engine oil level.
Add or replace.
Replace engine oil filter.
Replace engine oil.
Check coolant level and
refill.
Check coolant level and
refill.
See your authorized
Yanmar Marine dealer or
distributor.
See your authorized
Yanmar Marine dealer or
distributor.
See your authorized
Yanmar Marine dealer or
distributor.
Check oil level and refill.
Drain.
See your authorized
Yanmar Marine dealer or
distributor.
Reference
See Checking
the Engine Oil on
page 31
See Changing
the Engine Oil
and Replacing
the Engine Oil
Filter Element on
page 59
See Checking
and Adding
Engine Coolant
on page 34
See Checking
and Adding
Engine Coolant
on page 34
-
-
See Marine Drive
Oil on page 32
See Draining
Fuel Filter /
Water Separator
on page 62
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