Inspection Every 1,000 Hours Or One Year - Yanmar 3TNV Series Service Manual

2.2.6 Inspection every 1,000 hours or one year

Be sure to check the following points every 1,000 hours or one year operation, whichever comes first.
No.
(1) Coolant water replacement
(2) Diaphragm assy inspection
(3) Turbocharger blower cleaning*
(4) Intake/exhaust valve clearance adjustment
(5) Fuel injection nozzle pressure inspection
( 1) Coolant water replacement
Coolant water contaminated with rust or water scale
reduces the cooling effect. Even when antifreeze
agent (LLC) is mixed, the coolant water gets
contaminated due to deteriorated ingredients.
Replace the coolant water at least once a year.
1) Remove the radiator cap.
2) Loosen the drain plug at the lower portion of the
radiator and drain the coolant water.
3) After draining the coolant water, tighten the drain
plug.
4) Fill radiator and engine with coolant water.
Refer to 3.4
Inspection Item
B eware of scalding by hot water
Wait until the temperature goes down before draining the coolant water.
Otherwise, hot water may splash to cause scalding.
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2. Inspection and Adjustment