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Yanmar 4JH3-TE Series - Engine Shutdown Procedure

Yanmar 4JH3-TE Series
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28
GB
NOTICE
3.3.3 Operation
(1) Engine Acceleration and
Deceleration
Use the governor handle to control
acceleration and deceleration. Move the
handle slowly.
(2) FORWARD–NEUTRAL
(boat stopped) – REVERSE Clutch
Use the clutch handle to change from
FORWARD to NEUTRAL (boat stopped) to
REVERSE.
Shifting the clutch while operating at
high speed or not pushing the handle
fully into position (half clutch) will
result in damage to clutch parts and
abnormal wear.
1. Before using the clutch, be sure to move
the governor handle to a low speed
position (less than 1000 rpm). Move the
governor handle to a high speed position
after completing clutch operation.
2. When changing between FORWARD
and REVERSE, bring the clutch to
NEUTRAL and pause before slowly
shifting to the desired position. Do not
shift abruptly from FORWARD to
REVERSE or vice versa.
3. Move the clutch handle accurately and
fully into the FORWARD, NEUTRAL, and
REVERSE positions.
3. Operation
(4) After the Engine has Started
After the engine has started, check the
following items at a low engine speed:
1. Check that the gauges and alarm
devices on the instrument panel are
normal.
2. Check for water or oil leakage from the
engine.
3. Check that exhaust colour, engine vibra-
tions and sound are normal.
4. When there are no problems, keep the
engine at low speed with the boat still
stopped to send lube oil to all parts of
the engine.
5. Check that sufficient cooling water is
discharged from the seawater outlet
pipe. Operation with too small seawater
discharge will burn the impeller of the
seawater pump. If seawater discharge is
too small, stop the engine immediately.
Identify the cause and repair.
• Is the Kingston cock open?
• Is the inlet of the Kingston cock on
the hull bottom clogged?
• Is the seawater suction hose broken,
or does the hose suck in air due to a
loose joint?
The engine will seize if it is operated
when cooling seawater discharge is
too small or if load is applied without
any warming up operation.
NOTICE
JH-Turbo-Engels1b 28-06-2002 19:55 Pagina 28

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