Piping Diagrams - Yanmar 3YM30 Service Manual

1.5 Piping diagrams

(1) 3YM30/3YM20 (with KM2P-1 marine gear)
Marks of piping
Screw joint (Union)
Flange joint
Eye joint
Insertion joint
Drill hole
Cooling fresh water piping
Cooling seawater piping
Lubricating oil piping
Fuel oil piping
Fresh water temperature switch
Hot water connection inlet (R3/8)
Cooling water pump (fresh water)
Hot water connection outlet (R3/8)
28 x t4 rubber hose
28 x t4 rubber hose
Cooling water pump (seawater)
Notes
1. Dimension of steel pipe : outer dia. x thickness.
Dimension of rubber pipe : inner dia. x thickness.
2. Fuel rubber pipes (marked ) satisfy EN/ISO7840.
7.8 x t4.5 rubber hose
7.8 x t4.5 rubber hose
Check valve
7.8 x t4.5 rubber hose
Fuel oil filter
Pressure control valve
Lubricating oil pump
D
P
P
T
Thermostat
P
17 x t4 rubber hose
A
7.8 x t4.5 rubber hose
7.8 x t4.5 rubber hose
Fuel feed pump
5 x t4.5
Fuel injection pump
rubber hose
4.76 x t0.7 steel pipe
C
Lubricating oil filter (cartridge type)
P
From
cylinder
head To cam shaft
Fresh water cooler
Lubricating oil inlet filter
Main bearing
10
Fuel high pressure pipe
Fuel injection nozzle
Oil pressure switch
B
Mixing elbow
17 x t4 rubber hose
1.General
17
Detail of part A
Detail of part B
9
8
Detail of part C
8.5
8
Detail of part D