Caution: FleetguardT RESTORE contains no antifreeze.
Do not allow the cooling system to freeze during the
cleaning operation.
Immediately add 3.8 liters [1 U.S. gallon] of FleetguardT
RESTORE, RESTORE PLUS, (or equivalent) for each 38
to 57 liters [10 to 15 gallons] of cooling system capacity,
and fill the system with plain water.
Turn the heater temperature switch to high to allow max-
imum coolant flow through the heater core. The blower
does not have to be on.
Operate the engine at normal operating temperatures (at
least 85°C [185°F]) for 1 to 1 1/2 hours.
Shut the engine off, and drain the cooling system. Refer
to Procedure 1-07.
Fill the cooling system with clean water to flush the cool-
ing system. Refer to Procedure 1-09.
Operate the engine at high idle for 5 minutes with the
coolant temperature above 85°C [185°F].
Shut the engine off, and drain the cooling system. Refer
to Procedure 1-07.
NOTE: If the water being drained is still dirty, the system
must be flushed again until the water is clean.
Section 1 - Cooling System Cleaning the Cooling System (1-08)
N14 Page 1-21
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