8-14
Chapter 8 PERIODIC INSPECTION AND MAINTENANCE PROCEDURES
Coolant - Refill
1. Make sure coolant drain cocks and plugs are
closed securely.
2. Remove the radiator cap, and pour in undiluted
LLC.
Note: Determine the amounts of LLC and water to be
added by using the LLC concentration chart.
For the coolant, refer to "COOLANT" (6-1). For
the coolant capacity, refer to "MAIN SPECIFICA-
TIONS" (12-1).
3. Pour in water (soft water with minimal impurities,
such as tap water) slowly to the full level.
4. Check the radiator and other parts for coolant
leaks. If a coolant leak is found, repair it.
5. When coolant reaches the full level, close the radi-
ator cap securely.
6. Shut off the fuel supply and crank the engine for
about 10 seconds or less using the starter. Wait for
about 1 minute, then repeat the above cranking op-
eration to remove air from the cooling system of the
engine.
7. Check the coolant level in the radiator.
If the engine is equipped with a reserve tank, fill the
reserve tank with coolant to the full level as well.
Fig. 8-20 Radiator coolant level
Fig. 8-21 Reserve tank
Radiator fins - Check and Clean
Check the radiator fins for holes and cracks.
To clean the radiator fins, blow compressed air from
the opposite direction of the normal air flow.
Fig. 8-22 Radiator fins - Clean
To crank the engine, shut off the fuel supply to the
engine and operate the starters.
When adding coolant, use a coolant that has the
same LLC concentration as the coolant already in the
radiator.
When handling compressed air, wear safety goggles,
a hardhat, gloves and other necessary protective
gear. Works without wearing proper protective gear
could result in serious injuries.
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