MAINTENANCE
8210 330190 (3--06)
74
ENGINE
COOLING SYSTEM
Check the radiator coolant level every 100 hours
of operation. Use clean water mixed with a
permanent-type, ethylene glycol antifreeze to a
--34
_
C (--30
_
F) rating.
FOR SAFETY: When servicing machine,
avoid contact with hot engine coolant.
The coolant system must be completely filled with
coolant to keep the engine from overheating.
When filling the radiator with coolant, use the
drain cocks to ensure that all the air is out of the
system.
Check the radiator hoses and clamps every
200 hours of operation. Tighten the clamps if they
are loose. Replace the hoses and clamps if the
hoses are cracked, harden, or swollen.
Check the radiator core exterior and hydraulic
cooler fins for debris every 100 hours of
operation. Blow or rinse all dust, which may have
collected on the radiator, in through the grille and
radiator fins, opposite the direction of normal air
flow. Be careful not to bend the cooling fins when
cleaning. Clean thoroughly to prevent the fins
becoming encrusted with dust. Clean the radiator
and cooler only after the radiator has cooled to
avoid cracking.
FOR SAFETY: When servicing machine,
wear eye and ear protection when using
pressurized air or water.
Flush the radiator and the cooling system every
800 hours of operation, using a dependable
cleaning compound.