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74
Maintenance Section
Cooling System Coolant (ELC) - Change
NOTICE
Fill the cooling system no faster than 19 L (5 US gal)
per minute to avoid air locks.
3. Fill the cooling system with clean water and
operate the engine, ensure that the thermostat
opens. Stop the engine and allow the engine to
cool.
4. Drain the cooling system.
5. Fill the cooling system with clean water and
operate the engine until the engine is warmed to
82 °C (180 °F).
6. Stop the engine and allow the engine to cool. Drain
the cooling system.
Fill
NOTICE
Fill the cooling system no faster than 19 L (5 US gal)
per minute to avoid air locks.
1. Fill the cooling system with coolant/antifreeze.
Refer to this Operation and Maintenance Manual,
"Fluid Recommendations" 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 1500 rpm. Run the engine at high
idle for 1 minute to purge the air from the cavities
of the engine block. Stop the engine.
3. Check the coolant level. Maintain the coolant level
within 13 mm (0.5 inch) below the bottom of the
pipe for filling. Maintain the coolant level within
13 mm (0.5 inch) to the proper level on the sight
glass.
4. Clean the cooling system filler cap. Inspect the
gasket that is on the cooling system filler cap. If
the gasket that is on the cooling system filler cap is
damaged, discard the old filler cap and install a
new filler cap. If the gasket that is on the cooling
system filler cap is not damaged, perform a
pressure test. The correct pressure for the cooling
system filler cap is stamped on the face of the
cooling system filler cap. If the cooling system filler
cap does not retain the correct pressure, install a
new cooling system filler cap.
5. Start the engine. Inspect the cooling system for
leaks and for proper operating temperature.
Cooling System Coolant (ELC)
- Change
NOTICE
Perkins ELC must be using with an extender in order
to achieve 12000 hours operation. For more informa-
tion on a suitable extender contact your Perkins
distributor.
Clean the cooling system and flush the cooling
system before the recommended maintenance
interval if the following conditions exist:
• The engine overheats frequently.
• Foaming is observed.
• The oil has entered the cooling system and the
coolant is contaminated.
• The fuel has entered the cooling system and the
coolant is contaminated.
Note: When the cooling system is cleaned, only
clean water is needed when the ELC is drained and
replaced.
Note: Inspect the water pump and the water
temperature regulator after the cooling system has
been drained.
M0109073
i06606848
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