Yanmar 4LHA-DTP, Руководство по эксплуатации

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2.4 Major Servicing Pai
Name of Part
• F u e l filter
Function
Removes dust and water from fuel. The filter is a cartridge type, and the fuel element
should be replaced before clogging occurs. Hr=,in*»ri neriodicallv
A water separator is on the bottom of the filter and should be drained^?
e
"2 S d water
(for 4LHA-HTP/HTZP). For 4LHA-DTP/-DTZP/-STP/-STZP, dram the dust and water
periodicaly removing the drain plug at the bottom of filter.
• F u e l feed pump
Feeds fuel to the fuel injection pump builting-in the fuel injection pump (4LHA-HTP/-
F?4LHA-DTP/-DTZP/-STP/STZP, it is attached with the fuel injection pump.
• F u e l priming pump
This is a manual fuel pump. Moving the knob on the top of f « j j ^ j ^ g * ^
f u e l
-
The pump is also used to bleed air from the fuel system (4L.HA-HTP/ H u r j .
For4LHA-DTP/-DTZP/-STP/-STZP, moving the knob on the fuel feed pump attached
with the fuel injection pump feeds the fuel to bleed air.
• L u b e oil filler cap
• L u b e oil filter
Filler port for engine lube oil. . —
Filters fine metal fragments and carbon from the lube oil
f
d o q ^
The filter is a cartridge type and the filter element should be replaced before c o g ^
occurs. .
[Coolina Water
System]
• F r e s h water cooler
OFiller cap
O S u b tank
ORubber hose
• F r e s h water pump
•Seawater pump
This engine has two cooling water systems (for fresh water & ^ s e a w a j 0 Fresh
water flows from the fresh water tank into the fresh water cooler, where the tresn
r ^ e S ^ ^
It further cools the turbocharger and goes back to the fresh water tank.
[Coolina Water
System]
• F r e s h water cooler
OFiller cap
O S u b tank
ORubber hose
• F r e s h water pump
•Seawater pump
The fresh water cooler is a heat exchanger using sea water
wSen " L engine stops and cooling water cools, the pressure h t h e c a * * w a w
tank aiso dro^s to n e g a t i v e ^ ^ ^ ^ ^ Z S S S " *
back from tne suo xan*. i ms nun . — . •
[Coolina Water
System]
• F r e s h water cooler
OFiller cap
O S u b tank
ORubber hose
• F r e s h water pump
•Seawater pump
The centrifugal water pump circulates fresh cooling water ins.de the engine.
The pump driven by the V-belt.
[Coolina Water
System]
• F r e s h water cooler
OFiller cap
O S u b tank
ORubber hose
• F r e s h water pump
•Seawater pump
The rubber impeller-type pump is driven by gears. Do not operate it without s e a v ^ f ,
due to damage the impeller.
• O i i cooler
This heat exchanger cools high temp, engine oil by seawater.
•Turbocharger
The pressurized intake air feeding device: the exhaust gas turbine » rotateo oy
the exhaust gas, and the power is used to rotate the blower.
This pressurises the intake air for sending to the cylinaer.
•Inter-cooler
This heat exchanger cools the pressurized intake air from the turbocharger with
seawater.
•Anticorrosive zinc
The metal area of the seawater cooling system is prone ^ f ^ ^ ^ i
t h i s
The anti-corrosive zinc is installed in the oil cooler, inter-coole • etato P
r
eve nt ttu*
The anti-corrosive zinc is itself reduced overtime by electncal oomxjor. so t m u a oe
replaced at fixed intervals before it is completely consumed m-order to ensure that the
metal area of the seawater cooling system remains fully protected.
• N a m e plate
Name plates are provided on the engine and have the model, senal number and other
data.
•Starter motor
•Alternator
Starts the engine powered by the battery.
Driven by belt, and generates electricity and charges the battery.
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