3-29
24.2.2 CLEAN INSIDE OF COOLING SYSTEM
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.
‡ Since cleaning is performed while the engine is running, it is
very dangerous to go under the machine as the machine may
suddenly start moving. While the engine is running, never go
under the machine.
‡ Never remove the radiator cap when the engine is at operat-
ing temperature. At operating temperature, the coolant is
under pressure. Boiling water and steam spurting out 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 allow pressure to
be relieved.
‡ Stop the machine on level ground when cleaning or changing
the coolant.
‡ Use a permanent type of antifreeze.
If, for some reason, it is impossible to use permanent type
antifreeze, use an antifreeze containing ethylene glycol.
‡ In areas where the water is hard, always add Komatsu genuine
corrosion resistor agent KI. One packet of corrosion resistor
agent contains 100g. The standard density of the mixture should
be 7g/¬.
‡ Clean the inside of the cooling system, change the coolant and
add the corrosion resistor agent KI according to the table below.
24. SERVICE PROCEDURE 24. SERVICE PROCEDURE
Cleaning inside of
Adding corrosion
Kind of coolant cooling system and
resistant KI
changing coolant
Every year (autumn) or
Permanent type antifreeze
every 2000 hours,
(All season type)
whichever comes first
Non-permanent type Every 6 months (spring,
Every 1000 hours and
antifreeze containing autumn)
when cleaning the in-
ethylene glycol (Winter, (Drain antifreeze in spring,
side of the cooling
one season type) add antifreeze in autumn)
system and when
changing coolant.
Every 6 months or every
When not using antifreeze 1000 hours, whichever
comes first
To Next Page
Loading...
Need help?
General
