ENGINE OPERATION
JH Series Operation Manual
69
SHUTTING DOWN THE
ENGINE
Normal Shutdown
1. Reduce engine speed to low idle and
put remote control handle in NEUTRAL.
2. Accelerate from low speed to high
speed and repeat five times. This will
clean out the carbon from the cylinders
and the fuel injection nozzles.
3. Allow engine to run at low speed
(approximately 1000 min
-1
) without
load for 5 minutes.
NOTICE
For maximum engine life, YANMAR
recommends that when shutting the
engine down, you allow the engine to
idle, without load, for 5 minutes. This will
allow the engine components that
operate at high temperatures, such as
the turbocharger (if equipped) and
exhaust system, to cool slightly before
the engine itself is shut down.
Figure 2
Figure 4
4. Push and hold the stop switch.
After the engine has stopped, push the
power switch off.
NOTICE
Continue to hold the stop switch in until
the engine is completely stopped. If the
switch is released before the engine has
completely stopped, it may restart. If the
engine does not shut down,
see Engine
Auxiliary Stop Switch on page 70
and 71.
5. Wait 6 seconds or more before turning
the battery switch off for secure system
settle down.
NOTICE
• Do not turn the battery switch off
before turning the power switch off or
immediately after turning off the power
switch.
• Turning the battery switch off before
secure system settle down may cause
alarm to be set at the next activation by
turning on the power switch. In an
emergency situation, you can start the
engine even if the alarm is set.
In order to release above alarm, turn
off the power switch and wait 6
seconds before turning the power
switch on again.
6. Turn off the battery switch (if equipped).
7. Close the fuel cock.
Start switch
Stop switch
Power switch
042590-02EN01
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