17. TROUBLESHOOTING
17-7
Lx410/450/490 Operator's Manual
There is white smoke
coming from the
engine
1. A problem in the fuel 1. Fuel system
• Check whether the fuel injection
pump is out of timing.
• contact YOUR LOCAL YANMAR
TRACTOR DEALER
2. A problem in the cooling 2. Cooling system
• Check whether the coolant
temperature is too low.
• contact YOUR LOCAL YANMAR
TRACTOR DEALER
3. A problem in the lubrication 3. Lubrication system
• Check whether the engine oil level is
over filled.
• drain the engine oil to the specified
level
4. A problem in the engine mechanical 4. Engine mechanical system
• Check whether the valve clearance is
correct.
• contact YOUR LOCAL YANMAR
TRACTOR DEALER
• Check whether the pistons ring is
worn out.
• contact YOUR LOCAL YANMAR
TRACTOR DEALER
• Check whether the compression
pressure is too low.
• contact YOUR LOCAL YANMAR
TRACTOR DEALER
• Check whether the cylinder liner are
damage.
• contact YOUR LOCAL YANMAR
TRACTOR DEALER
The problem is: The possible cause(s) are: Remedy:
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