Yanmar 4JH45 Operation Manual page 81

12/05
Changing the Coolant
CAUTION
Coolant Hazard. Wear eye protection
and rubber gloves when you handle
engine coolant. If contact with the eyes
or skin should occur, flush eyes and
wash immediately with clean water.
Change the coolant every year.
NOTICE
Never mix different types and/or colors of
coolants.
Discard old coolant in an approved manner
according to environmental laws.
Note: If Long Life coolant is used,
replace coolant every 2 years.
JH Series Operation Manual
PERIODIC MAINTENANCE
Figure 54JH45, 4JH57
3 2
Figure 19
1 – Coolant drain cock
(Cylinderblock)
2 – Marine gear oil cooler (KM4A1)
3 – Seawater drain cock
(Marine gear oil cooler)
4
7
Figure 20
4 – Coolant pump
5 – Coolant tank (Heat exchanger)
6 – Coolant drain cock
(Coolant tank/Heat exchanger)
7 – Seawater pump
(Drain from pump cover)
1
056983-00X00
5 6
056984-00X00
75