24. SERVICE PROCEDURE 24.2.2 CLEAN INSIDE OF COOLING SYSTEM Clean the inside of the cooling system, change the coolant and re- place the corrosion resistor according to the table below. 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. PC130/150LGP-6K ENG 3-27 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 enter the rear side of the machine as the machine may suddenly start moving. If the under cover is left removed, it may interfere with the fan. While the engine is run- ning, never enter the rear side of the machine. • Never remove the radiator cap when the engine is at operating 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 allow pressure to be relieved.
WARNING Kind of coolant Cleaning inside of cooling system and changing coolant Replacing corrosion resistor Permanent type antifreeze (All season type) Every year (automn) or every 2000 hours which- ever comes first Every 1000 hours and when cleaning the inside of the cooling system and when changing coolant. Non permanenent type antifreeze containing ethylene glycol (Winter, one season type) Every 6 months (spring, automn) (Drain antifreeze in spring, add anti- freeze in autumn) When not using antifreeze Every 6 months or every 1000 hours whichever comes first