Takeuchi TB23R, Руководство оператора

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121
MAINTENANCE
Every 1000 Hours
Cleaning the Engine Cooling
System
WARNING
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Stop the engine and allow the machine
to cool down before performing
maintenance.
• The engine, muffler, radiator and
many other parts of the machine
are hot directly after the engine is
stopped. Touching these parts will
cause burns.
• The engine coolant is also hot and
under high pressure. Be careful
when loosening caps and plugs.
Working on the machine under these
conditions could result in burns
or injuries due to the hot coolant
spurting out.
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If maintenance must be performed
with the engine running, always work
as a two-person team with one person
sitting in the operator’s seat while the
other works on the machine.
• When performing maintenance, be
sure to keep your body and clothing
away from moving parts.
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Standing at the back of the machine
while the engine is running is
extremely dangerous, as the machine
could move suddenly. Never stand
at the back of the machine while the
engine is running.
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Do not remove the radiator cap or
drain plugs when the coolant is hot.
Stop the engine, let the engine and
radiator cool and loosen the radiator
cap or drain plugs slowly.
When cleaning, if the temperature of the
coolant is low, the thermostat will be closed
and the coolant will not circulate in the
radiator. Heat the coolant water to at least
90°C before cleaning.
1. Open the engine hood and rear cover
(R.H.).
2. Gradually loosen the radiator cap (3)
to release the internal pressure, then
remove.
3. Place a pan for catching the spent
coolant under the drain plug (4), then
loosen the drain plug (4) and drain the
coolant.
4. Tighten the drain plug (4).
5. Add tap water through the radiator’s
coolant supply port up to the top of the
port. Take your time doing this, adding
the water slowly to avoid any air from
entering the radiator.
6. Close the radiator cap (3).
7. Start the engine and run it at a speed
slightly above low idling. Raise the water
temperature to at least 90°C, then run
the engine for about 10 minutes with the
thermostat open.
8. Stop the engine, let the water’s
temperature lower, then loosen the drain
plug (4) and drain the water.