Yanmar 3JH4E Service Manual page 77

2) Replenishing engine with water
If the cooling water leveling the coolant
recovery tank is lower than the LOW mark,
open the filler cap and check the cooling
water level in the coolant tank. Replenish the
engine with the cooling water, if the level is
low.
• Check the cooling water level when the
engine is cool.
Checking when
dangerous. And the water volume is
expanded due to the temperature.
• Daily cooling
replenishing shall be done only at the coolant
recovery tank. Usually do not open the filler
cap to check or replenish.
Standard
Cooling water volume
Engine model Engine Coolant recovery tank
3JH4E 4.5 (4.8)
4JH4E 6.0 (6.3)
4JH4-TE/4JH4-HTE 7.2 (7.6)
IMPORTANT:
If the cooling water runs short quickly or when
the coolant tank runs short of water with the
coolant recovery tank level unchanged, water
may be leaking or the air tightness may be lost.
Increase in the water level of the coolant
recovery tank during operation is not abnormal.
The increased water in the coolant recovery tank
returns to the coolant tank when the engine is
cooled down.
If the water level is normal in the coolant
recovery tank but low in the coolant tank, check
loosened clamping of the rubber hose between
the coolant tank and coolant recovery tank or
tear in the hose.
the engine is hot
water level check
Unit: liter (quart)
0.8 (0.8)
0.8 (0.8)
0.8 (0.8)
is
and
57
2. Inspection and adjustment