Yanmar 4JH3-TE, Operation Manual

Page: 22 / 65

18 3. BEFORE OPERATION
3. BEFORE OPERATION
Perform items 3.1 – 3.7 before starting to prepare for operation.
3.1 Fuel Oil, Lube Oil and Cooling Water
3.1.1 Fuel Oil
(1) Selection of Fuel Oil
Use the following diesel fuels or equivalents.
Select fuels of a higher quality for best engine performance.
• ISO 8217 DMA
• BS 2869 A1 or A2
[Fuels eguivalent to Japanese Industrial standard, JIS. No. K2204-2]
Cetane fuel number should be 45 or greater.
NOTICE:
When other than the specified fuel oil is used, the engine will not perform to full capacity
and parts may be damaged.
(2) Handling of Fuel Oil
• Keep the fuel oil in a clean container. Store the con-
tainer in a place away from rain and dirt as water and
dust mixed in with the fuel cause engine failure.
• Keep the fuel container stationery for several hours to
allow any dirt or water to settle to the bottom. Use a
pump to extract the clear, filtered fuel from the top of
the container for use.
(3) Fuel Piping
Install the fuel pipe from the fuel tank to the fuel pump in
accordance with the diagram to the right. Be sure to
attach a drain cock to the fuel tank to enable dirt and
water which have settled at the bottom of the tank to be
drained off.
Pump up only fuel
above the down
haif, leaving dreg
accumulated on
the bottom.
To
fuel injection pump Less than 500mm
Fuel return pipe
Fuel oil tank
Fuel oil cock
Drain cock
Fuel oil filter with engine
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