Yanmar 6SY Series, Operation Manual

Page: 45 / 128

BEFORE YOU OPERATE
6SY Operation Manual
37
Figure 2
1. Install a transparent plastic hose on
each fuel rail bleeder valve
(Figure 2, (1)) . Place the hoses in an
appropriate container.
2. Open the bleeder valve and operate
the hand pump
(Figure 2, (2)) until
fuel flows without air bubbles. This
may take 130 - 150 pump strokes.
3. Close the bleeder valves and remove
the hoses.
4. Continue hand pumping until there is
resistance:
• Approximately 20 strokes after
replacing the fuel filter
• Approximately 50 strokes after
replacing a fuel injector
5. Start the engine and check for leaks.
If the engine fails to start after bleeding:
• Open the bleeder valves again and
operate the hand pump until fuel without
air bubbles flows out.
• Tighten the bleeder valves. Start the
engine and check for leaks.
ENGINE OIL
CAUTION
NEVER hold the key in the
START position for longer than
15 seconds or the starter motor
will overheat.
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CAUTION
• Only use the engine oil
specified. Other engine oils
may affect warranty coverage,
cause internal engine
components to seize, or
shorten engine life.
• Prevent dirt and debris from
contaminating engine oil.
Carefully clean the oil
cap / dipstick and the
surrounding area before you
remove the cap.
• NEVER mix different types of
engine oil. This may adversely
affect the lubricating
properties of the engine oil.
• NEVER overfill. Overfilling may
result in white exhaust smoke,
engine overspeed or internal
damage.
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