Cleaning The Radiator Screen; Changing The Coolant; Selecting And Mixing Coolant - Daedong DK-Series Manual

CHANGING THE COOLANT

(1) Drain Cock
1. Open the drain cock on the side of
cylinder block and open the radiator
cap. Allow the coolant to drain
completely.
2. Flush the radiator with clean water,
and then close the drain cock.
3. Pour the new coolant mixture into the
radiator and auxiliary water tank. Re-
place the radiator cap and tighten
securely.
CAUTION
Pour coolant into the radiator
slowly (less than 10 L/min. or 10.
6 qt./min.) to prevent air from
being trapped in the cooling
system. Air in the system will
cause engine overheating.

SELECTING AND MIXING COOLANT

A permanent type (PT) antifreeze should
always be used if there is any probabil-
ity of freezing temperatures. Antifreeze
lowers the freezing point of the engine
coolant to protect the cooling system and
engine from freezing; which may cause
a rupture of components or the engine.
Always use the proper mix of antifreeze
and clean water for the engine coolant.
Note that good quality antifreeze will con-
tain additives to keep the cooling system
clean, and it also improves cooling per-
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formance in hot weather.
CAUTION
The mixture of antifreeze and
water should not exceed 50/50.
Follow the directions provided by
the antifreeze manufacturer.
Do not mix rust inhibitors or any
other chemicals with antifreeze.
It may cause serious damage to
the cooling system.
MAINTENANCE 6-5

CLEANING THE RADIATOR SCREEN

(1) Radiator Screen
The radiator screen is designed to pro-
tect the radiator core from dirt, trash,
insects, etc.. It must be cleaned regu-
larly to maintain good air flow through
the radiator.
IMPORTANT
Always stop the engine before
cleaning the radiator screen or
performing any other service.
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