After The Engine Has Started - Yanmar 3JH5E Operation Manual

12/05
Starting with Air Heater
(If Equipped)
1. Open the seacock (if equipped).
2. Open the fuel tank cock.
3. Put remote control handle in
NEUTRAL.
4. Turn the battery switch on (if equipped).
5. Push the power switch on. Ensure that
the instrument panel indicators light
and the alarm sounds. This shows that
indicators and alarm are working
correctly.
Note: The coolant high temperature
alarm indicator does not come
on during start-up.
6. Push and hold the glow switch for 15
seconds.
7. Push the start switch. Release the start
switch when the engine has started.
The alarm should stop and the
indicators should go out.
Never hold the start switch for longer
than 15 seconds or the starter motor will
overheat.
JH Series Operation Manual
ENGINE OPERATION

After the Engine has Started

After the engine has started, check the
following items at a low engine speed:
1. Check that the gauges, indicators and
alarm are normal.
• Normal coolant operating temperature
is approximately 76° to 90°C (169° to
194°F).
• Normal oil pressure at 3000 min
0.28 to 0.54 MPa (41 to 78 psi).
2. Check for water, fuel or oil leakage from
the engine.
3. Check that the smoke color, engine
vibration and sound are normal.
4. When there are no problems, keep the
engine at low speed with the boat still
stopped to distribute engine oil to all
parts of the engine.
5. Check that sufficient cooling water is
discharged from the seawater outlet.
Operation with inadequate seawater
discharge will damage the impeller of
the seawater pump. If seawater
discharge is too low, stop the engine
immediately. Identify the cause and
repair.
The engine will seize if it is operated
when seawater discharge is too small or
if load is applied without any warming up
operation.
For troubleshooting assistance, see
Troubleshooting After Starting on page
89 or Troubleshooting Chart on page 91
. If necessary, consult authorized
Yanmar dealer or distributor.
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