Yanmar 6LPA-STP2, Operation Manual

Page: 34 / 110

Additional Technical Fuel
Requirements
• The fuel cetane number should be equal
to 45 or higher.
• The sulfur content must not exceed 0.5%
by volume. Less than 0.05% is preferred.
• NEVER mix kerosene, used engine oil, or
residual fuels with the diesel fuel.
• Water and sediment in the fuel should not
exceed 0.05% by volume.
• Keep the fuel tank and fuel-handling
equipment clean at all times.
• Ash content not to exceed 0.01% by
volume.
• Carbon residue content not to exceed
0.35% by volume. Less than 0.1% is
preferred.
• Total aromatics content should not
exceed 35% by volume. Less than 30% is
preferred.
• PAH (polycyclic aromatic hydrocarbons)
content should be below 10% by volume.
• Do not use Biocide.
• Do not use kerosene or residual fuels.
Handling of Diesel Fuel
0004512
Figure 1
1. Water and dust in the fuel may cause
engine failure. When fuel is stored, be
sure that the inside of the storage
container is clean and dry, and that the
fuel is stored away from dirt or rain.
2. Keep the fuel container stationary for
several hours to allow any dirt or water
to settle to the bottom of the container.
Use a pump to extract the clear, filtered
fuel from the top of the container
(Figure 1).
Fuel Tank
Note: Optional fuel tank style shown.
(1)
(2)
(3)
0004898
Figure 2
1 – Sediment Bowl
2 – Drain Cock
3 – Fuel Line To Engine
Install a drain cock (Figure 2, (2)) at the
bottom of the fuel tank to remove water and
contaminants from the sediment bowl
(Figure 2, (1)).
The fuel outlet should be positioned 20 - 30
mm (0.75 - 1.125 in.) above the bottom of
the tank so that only clean fuel is distributed
to the engine.
BEFORE YOU OPERATE
28 6LPA Series Operation Manual
© 2007 Yanmar Marine International