8-13
Chapter 8 PERIODIC INSPECTION AND MAINTENANCE PROCEDURES
Cooling system
Coolant - Change
Fig. 8-16 Radiator filler cap
Coolant - Drain
1. When draining coolant immediately after engine
operation, idle the engine in low gear for 5 to 6 min-
utes to lower the coolant temperature to 70 to 80 °C
[158 to 176 °F].
2. Open the radiator filler cap.
3. Place coolant receiving cans under the drain cocks
and plugs, and open the coolant drain cocks and
plugs to drain the coolant.
Fig. 8-17 Coolant drain cock (engine)
Remove the radiator cap only after the engine has
cooled to room temperature. Place a waste cloth over
the cap, and loosen the cap about a half-turn or stand
the lever to the upright position to release internal
pressure. Never open the radiator filler cap while the
engine is hot, otherwise the steam or hot coolant
spurts out and you may be scald with it.
Coolant (containing LLC) drained from the engine is
toxic. Never dispose of coolant into regular sewage.
For disposal of used coolant, consult a dealer of Mit-
subishi Heavy Industries, Ltd. or a industrial waste
disposer.
The service life of LLC is 2 years. Be sure to change
coolant at least once every 2 years.
Turn the cap about
half a turn
Stand the lever to
the upright position
Coolant
drain cocks
Left side
Right side
The coolant drain cocks located in the crankcase
respectively (behind the each fuel injection pump
accessory drive unit).
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