TROUBLESHOOTING
100
TNV Operation Manual
Indicator Turns On - Engine Running
Engine coolant indicator
• Low engine coolant level
• Add engine coolant
• Dirty radiator fins
• Clean the radiator fins
• Engine coolant leaking
• See authorized Yanmar
industrial engine dealer or
distributor
—
• V-belt loose or damaged
• Adjust V-belt or replace
• Contaminated engine
coolant
• See authorized Yanmar
industrial engine dealer or
distributor
—
• Faulty engine coolant
pump
—
Battery Indicator
• V-belt loose or damaged
• Adjust V-belt or replace
• Battery failure
• Check battery condition
Check Battery on page 82
• Faulty alternator
• See authorized Yanmar
industrial engine dealer or
distributor
—
Indicator Does Not Turn ON - Key Switch is Turned to ON (OFF
→
ON) - Engine Not Running
• Faulty electrical wiring or
faulty indicator
• See authorized Yanmar
industrial engine dealer or
distributor
—
Indicator Stays On - Key Switch is Turned from Start to ON (START
→
ON) - Engine Not Running
• Battery indicator stays ON
• Faulty alternator
• See authorized Yanmar
industrial engine dealer or
distributor
—
• Engine oil pressure
indicator stays ON
• Faulty engine oil pressure
switch
—
• No or Low level of engine
oil
• Check and adjust oil level
as necessary
page 38
• Clogged engine oil filter
• Replace engine oil filter
Engine Oil Filter on page 75
Engine Does Not Start
• Starter motor operates but
engine does not start
• No diesel fuel
• Refuel and prime fuel
system
page 34
• Air in fuel system
• Prime fuel system
page 36
• Improper diesel fuel
• Replace with
recommended diesel fuel
page 33
• Clogged fuel filter
• Replace fuel filter
page 89
• Poor fuel injection
• See authorized Yanmar
industrial engine dealer or
distributor
—
• Compressed air leakage
from intake / exhaust
valves
—
• Faulty engine stop
solenoid
—
SYMPTOM
PROBABLE CAUSE
ACTION
REFER TO
Summary of Contents for 2TNV70
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Page 32: ...SAFETY 14 TNV Operation Manual ...
Page 116: ...PERIODIC MAINTENANCE 98 TNV Operation Manual ...
Page 140: ...SPECIFICATIONS 122 TNV Operation Manual ...
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