Every 12 000 Service Hours Or 6 Years Cooling System Coolant (Elc) - Change - Perkins 400 Series Operation And Maintenance Manual

56
Maintenance Section
Cooling System Coolant (ELC) - Change
4. Start and run the engine at low idle until the
temperature reaches 49 to 66 °C (120 to 150 °F).
5. Stop the engine and allow the engine to cool.
Loosen the cooling system filler cap slowly in
order to relieve any pressure. Remove the cooling
system filler cap. Open the drain cock or remove
the drain plug on the engine. Open the drain cock
or remove the drain plug on the radiator. Allow
the water to drain. Flush the cooling system with
clean water.
Fill
1. Close the drain cock or install the drain plug on
the engine. Close the drain cock or install the
drain plug on the radiator.
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.
2. Fill the cooling system with Commercial
Heavy-Duty Coolant. Add Supplemental Coolant
Additive to the coolant. For the correct amount,
refer to the Operation and Maintenance Manual,
"Fluid Recommendations" topic (Maintenance
Section) for more information on cooling system
specifications. Do not install the cooling system
filler cap.
3. Start and run the engine at low idle. Increase the
engine rpm to high idle. Run the engine at high
idle for one minute in order to purge the air from
the cavities of the engine block. Stop the engine.
4. 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 in the
expansion bottle (if equipped) at the correct level.
5. 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 cooling system filler
cap and install a new cooling system filler cap. If
the gasket that is on the cooling system filler cap
is not damaged, use a suitable pressurizing pump
in order to pressure test the cooling system filler
cap. 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.
6. Start the engine. Inspect the cooling system for
leaks and for correct operating temperature.
Cooling System Coolant (ELC)
- Change
NOTICE
Care must be taken to ensure that fluids are contained
during performance of inspection, maintenance, test-
ing, adjusting and repair of the product. Be prepared to
collect the fluid with suitable containers before open-
ing any compartment or disassembling any compo-
nent containing fluids.
Dispose of all fluids according to Local regulations and
mandates.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened
component life.
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. This is a good opportunity to replace
the water pump, the water temperature regulator and
the hoses, if necessary.
Drain
Pressurized System: Hot coolant can cause seri-
ous burns. To open the cooling system filler cap,
stop the engine and wait until the cooling system
components are cool. Loosen the cooling system
pressure cap slowly in order to relieve the pres-
sure.
SEBU7992-01
i02150871