24. SERVICE PROCEDURE
24.2 WHEN REQUIRED
24.2.1 CLEAN INSIDE OF COOLING SYSTEM
A
WARNING
Soon after the engine has been stopped, the coolant is hot
and can cause personal injury. Allow the engine to cool
before draining water.
Never remove the radiator cap when the engine is at operat-
ing temperature. At operating temperature, the coolant is
under pressure. Steam blowing up from the radiator could
cause personal injury. Allow the engine to cool until the
radiator filler cap is cool enough to touch with your hand.
Remove the filler cap slowly to relieve pressure.
Never be under the machine with the engine running. To
avoid serious injury, always stop the engine before being
under the machine to open the drain valve.
When removing drain plug, avoid pouring coolant on your-
self.
Antifreeze is flammable, so keep it away from any flame.
Flushing agents, neutralizing agents, and anti-corrosive agents
are strong acids or alkalize, so be careful not to get them on
your skin. If you should get any of these on your skin, wash
off immediately with ample water.
After using the agent, do not use the empty packet for
keeping food, etc.
Stop the machine on level ground when cleaning or changing
the coolant.
Clean the inside of the cooling system, change the antifreeze,
and replace the corrosion resistor according to the table below.
REMARK
When using a corrosion resistor cartridge element marked RE-
PLACE EVERY 500 HOURS, see the table on the next page.
Kind of coolant
Cleaning inside of Adding corrosion
cooling system and resistant KI
changing coolant
(in hard water areas)
Permanent type antifreeze Every year (autumn) or
(All season type) every 2000 hours
whichever comes first
Non permanent type Every 6 months (spring, Every 1000 hours and
antifreeze containing
autumn) when cleaning the inside
ethylene glycol (Winter, (Drain antifreeze in spring, of the cooling system and
one season type)
add antifreeze in autumn) when changing coolant
Every 6 months or every
When not using antifreeze 1000 hours whichever
comes first
3-22
To Next Page