is needed considering climate, please contact with local HELI sales network for HELI
exclusive coolant with greater anti-freezing ability.
(1) If the radiator appears “boiling” or excessive coolant temperature, it is
prohibited strictly to open the radiator cover immediately. Do as the following:
(a) Park the truck at a safe area;
(b) Keep the engine idling and open the engine hood to keep good ventilation;
(c) Shut off the engine when the water temperature indicator points to the normal
range;
(d) Check the following points when the engine is cool completely:
● Check if the coolant lever is correct;
● Check if the fan belt is loose;
● Check the engine oil quality and oil level;
● Check if the radiator is clogged;
● Check if the thermostat can open normally;
(2) Use HELI exclusive coolant in order to keep the engine and cooling system
in good condition. Change it once a year. If the coolant is bad in less than one year,
change it when necessary. When changing the coolant, clean the interior of the cooling
system. The freezing point of the coolant should be at least 10℃ lower than the lowest
environment temperature.
(3) Replenish the coolant with HELI exclusive one only when the engine is cool
when necessary avoiding engine damage. If there is no HELI exclusive coolant in an
emergency, never add any additives. Add water only and contact with local HELI sales
network for proper mixture as possible. Use new HELI exclusive coolant when
replenishing. It is prohibited to add hard water such as tap water, mineral water, river
water, well water to the cooling system avoiding radiator corrosion or scale forming
which will reduce radiator performance and service life.
(4) It is prohibited to contact the radiator core directly with sharp hard objects if
the core is dirty. Clean it with water flow or air flow with the following set pressure
-4-
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