Adding Coolant - Mitsubishi FUSO FE 2006 Owner's Manual

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Simple inspection and service

5 Adding coolant

CAUTION
•
Coolant should normally be added through
the reservoir tank without opening the pres-
sure cap on the engine.
•
When adding coolant, use new coolant addi-
tive of the same brand and concentration as
the additive that is already in the vehicle.
•
Adding only water reduces the concentra-
tion of the coolant already in the system,
resulting in less protection against freezing
and corrosion. Additional coolant should
always contain the correct proportions of the
additive and soft water.
5.1 Adding
checks
1. If the coolant level is below the "LOW" mark,
remove the cap from the reservoir tank, and refill
the tank with a mixture of FUSO DIESEL
LONGLIFE COOLANT and soft water to the
"FULL" mark.
2. Refit the cap securely after adding coolant.
5.2 Adding coolant following an engine over-
heat
If the engine overheats, the amount of coolant may
be insufficient not only in the reservoir tank but also
in the main body of the radiator.
1. Allow the engine to cool down by keeping it run-
ning at a speed slightly higher than the specified
idling speed.
2. When the needle in the coolant temperature
gauge has come down to approximately the
center of the scale, stop the engine and perform
the following checks and corrective steps:
•
Check that coolant is not leaking from the
radiator hoses or from any related part.
•
Check that the fan belt is not broken and that
its tension is normal.
3. Tilt the cab.
If the vehicle is a Crew-cab model vehicle,
uncover the engine inspection opening.
4. Undo the fastener
counterclockwise to remove it. If the coolant
level is too low, add coolant until it reaches the
opening.
WARNING
Do not open the pressure cap before the nee-
dle in the coolant temperature gauge has
come down to approximately the center of
the scale. If you open the pressure cap too
Z12449
soon, hot coolant and steam will spray out
and scald you.
coolant during pre-operation
then turn the pressure cap
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P. 12-5
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