CLEANING AND STORAGE
Clean as follows:
EYE INJURY
To avoid injury from
fl
ying debris
when using compressed air, wear
adequate eye protection (face
shield or safety goggles) and do
not exceed 276 kPa (40 psi) air
pressure.
1. Remove debris (dust, insects,
etc.) from the
fi
ns of the radiator
grille by blowing them through
with compressed air or spraying
them out with water. Work from
the rear of the radiator (in the
opposite direction of the normal
cooling air
fl
ow).
2. Drain the coolant when
the engine is cold. For
detailed procedures, see the
vehicle/chassis maintenance
manual. For types of coolant,
refer to “Coolant” in the “Service
Products” section.
3. If the HVAC unit is connected
to the cooling system, open the
regulating valves all the way.
Degreasing
Degrease as follows:
1. Fill the cooling system with a 5%
solution (1.6 ounces per quart of
water—50 grams per liter) of a
mildly alkaline cleaning agent,
such as sodium carbonate.
2. Run the engine at moderate speed
until the thermostat starts to open,
at an operating temperature of
approximately 80°C (176°F).
Then run it for about
fi
ve minutes
longer. Shut down the engine and
allow it to cool to approximately
50°C (112°F).
HOT COOLANT
To avoid scalding from the
expulsion of hot coolant, never
remove the cooling system
pressure cap while the engine is
at operating temperature. Wear
adequate protective clothing
(face shield, rubber gloves,
apron, and boots). Remove the
cap slowly to relieve pressure.
3. Drain all the cleaning solution.
4. Flush the cleaning solution from
the cooling system.
[a] Immediately after draining
the cleaning solution,
fl
ush
the system with clean water.
[b] Once the clean water has
drained,
fi
ll the system again
with clean water.
40
All information subject to change without notice.
(Rev. )
DDC-SVC-MAN-0055
Copyright © 2009 DETROIT DIESEL CORPORATION
Summary of Contents for EPA04 MBE 900
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