Coolant Extender (Elc) - Add - Perkins 403F-E17T 404F-E22T Operation And Maintenance Manual

84
Maintenance Section

Coolant Extender (ELC) - Add

5. Stop the engine and allow the engine to cool.
Loosen the cooling system filler cap slowly to
relieve any pressure. Remove the cooling system
filler cap. Remove the cooling system drain plugs.
Allow the water to drain. Flush the cooling system
with clean water. Install the cooling system drain
plugs and tighten securely.
Fill
NOTICE
Do not fill the cooling system faster than 5 L
(1.3 US gal) per minute to avoid air locks.
Cooling system air locks may result in engine
damage.
1. Fill the cooling system with Extended Life Coolant
(ELC). Refer to this Operation and Maintenance
Manual, "Refill Capacities" topic (Maintenance
Section) for more information on cooling system
specifications. Do not install the cooling system
filler cap.
2. Start and run the engine at low idle. Increase the
engine rpm to high idle. Operate the engine to
open the engine thermostat. An open thermostat
will allow any air in the system to be purged.
Decrease the engine speed to low idle. Stop the
engine.
3. Maintain the coolant level at the maximum mark
that is correct for your application. For more
information, refer to this Operation and
Maintenance Manual, "Coolant Level - Check".
Illustration 47
Typical example
4. Clean the cooling system filler cap and check the
condition of the filler cap gasket (2). Replace the
cooling system filler cap if the filler cap gasket (2)
and sealing surface (1) are damaged. If the
cooling system filler cap is not damaged, perform
a pressure test on the filler cap.
• Cooling system filler cap pressure for three
cylinder engine 95 kPa (13.7 psi)
• Cooling system filler cap pressure for four
cylinder engine 110 kPa (15.9 psi)
If the cooling system filler cap passes the pressure
test check, install the filler cap. If required install
new cooling system filler cap.
5. Start the engine. Inspect the cooling system for
leaks and for proper operating temperature.
Coolant Extender (ELC) - Add
In order for Perkins ELC to achieve 12000 hours an
extender must be added at 6000 hours. For a
suitable extender, contact your Perkins dealer or
Perkins distributor.
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