12-56 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 surge tank.
• 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 coolant during pre-operation
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.
Refer to “If the engine overheats” with regard to the
filling of coolant in situations where the engine has
overheated. P. 13-8
WARNING
Never remove the pressure cap while the cool-
ant is still hot. Carelessly removing it is dan-
gerous since boiling coolant and hot steam
will gush out and could scald you. Only after
the coolant has cooled down sufficiently,
remove the pressure cap by gripping it in a
folded piece of thick cloth and opening it
slowly.
FE_FG.book Page 56 Tuesday, February 8, 2011 4:00 PM
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