Yanmar 3JH4E - Page 44

4JH4-HTE
(1)
(2)
(6)
(5)
(3)
(4)
0004560
Figure 17
1 – Coolant Tank (Heat Exchanger)
2 – Coolant Pump (Fresh Water)
3 – Seawater Drain from Seawater
Pump Cover
4 – Coolant Drain Cock
5 – Intercooler
6 – Seawater Drain Cock
4JH4-HTE
0004561
(1)
(2)
(3)
Figure 18
1 – Coolant Drain Cock
2 – Seawater Drain Cock
3 – Marine Gear Cooler
Note: The drain cocks are opened before
shipping from the factory. Marine gear
ZF25A does not have a drain cock on the
clutch cooler.
1. Ensure all drain cocks are closed.
2. Loosen the filler cap of the coolant tank
to relieve the pressure then remove the
filler cap.
(2)
(1)
(4)
(3)
0004492
Figure 19
1 – Coolant Filler Cap
2 – Filler Cap Tabs
3 – Filler Port Notches
4 – Coolant Tank
3. Pour coolant slowly into the coolant
tank (Figure 19, (4)) to avoid air
bubbles. Fill until coolant overflows
from the filler port.
4. Align filler cap tabs (Figure 19, (2))
with filler port notches
(Figure 19, (3)) and tighten filler cap
(Figure 19, (1)).
Note: The coolant level rises in the coolant
recovery tank during operation. After
stopping the engine, the coolant will cool
down and the extra coolant will return to the
coolant tank.
BEFORE YOU OPERATE
38 JH4 Series Operation Manual