8-16
Chapter 8 PERIODIC INSPECTION AND MAINTENANCE PROCEDURES
Cooling System
Coolant - Change
Radiator Cap - Open/Close
Note: If the specification of radiator differs from the
contents of this operation manual, follow the
manufacturer's operation manual.
Fig. 8-20 Radiator 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 coolant inlet.
3.
Place coolant receiving cans under the drain cocks
and plugs, and open the coolant drain cocks and
plugs to drain the coolant.
Fig. 8-21 Coolant Drain Cock (Engine)
The service life of LLC is 2 years. Be sure to change coolant at least once every 2 years.
When using the engine with radiator cooling system,
remove the radiator cap only after the engine has
cooled to the 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 inter-
nal pressure. Opening the radiator cap of coolant
expansion tank while the engine is hot causes steam
and hot coolant to blow out and can result in skin
burns.
Turn the cap about
half a turn
Stand the lever to
the upright position
Coolant drain cock
