Yanmar 4JH45 Operation Manual page 119

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1 – Fuel overflow
2 – * 7 x t4.5 Rubber hose
3 – Fuel inlet
4 – Fuel oil pre-filter
5 – * 7 x t4.5 Rubber hose
6 – Fuel filter (cartridge type)
7 – * 7.5 x t3 Rubber hose
8 – * 9.5 x t3.5 Rubber hose
9 – * 9.5 x t3.5 Rubber hose
10 – * 10 x t1.2 Steel pipe
11 – * 7.5 x t3 Rubber hose
12 – Fuel supply pump
13 – Common rail
14 – Fuel high-pressure pipe 6.35 x
t1.675 Steel pipe
15 – Lubricating oil filter
(cartridge type)
16 – Lubricating oil cooler
17 – Fuel return pipe
18 – 13 x t3.5 Rubber hose
19 – Oil pressure switch
20 – Oil pressure sensor (option)
21 – Fuel injection nozzle
22 – Piston cooling oil jet
23 – Seawater inlet
24 – 8 x t1 STKM
25 – Marine gear lubrication oil
Cooler
26 – To Oil pan
27 – From Cylinder block
28 – 17 x t3 rubber hose
29 – 17 x t1.2 STKM
30 – Turbo charger
31 – Mixing elbow
32 – 25.4 x t4.3 Rubber hose
33 – 8.5 x t3.5 Rubber hose
34 – 7.5 x t2.5 Rubber hose
35 – Air cooler
36 – Heat exchanger
37 – Main bearing
38 – Lubrication oil inlet strainner
39 – To Camshaft
40 – 25.4 x t4.3 Rubber hose
(option)
41 – 25.4 x t4.3 Rubber hose
42 – 25.4 x t4.3 Rubber hose
43 – Cooling water pump (seawater)
44 – 28 x t4 Rubber hose
45 – 28 x t4 Rubber hose
JH Series Operation Manual
SYSTEM DIAGRAMS
46 – Hot water connection outlet
47 – Coolant temperature sensor
48 – Thermostat
49 – Cooling Water Pump (coolant)
50 – Hot water connection return
51 – From Cylinderhead
52 – To Cylinderblock
53 – Lubrication oil pump
54 – Lubrication oil pressure
control valve
55 – 15 x t3.5 Rubber hose
113