SEBU8121 59
Maintenance Section
Cooling System Coolant Extender (ELC) - Add
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 d
rain. Flush the cooling system with
clean water.
Fill
1. Close the dra
in 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 coo
ling system with Extended Life
Coolant (ELC). Refer to the Operation and
Maintenance Manual, “Fluid Recommendations”
topic (Main
tenance 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 on
eminuteinordertopurgetheairfrom
the cavities of the engine block. Stop the engine.
4. Check the c
oolant 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
expansio
n bottle (if equipped) at the correct level.
5. Clean the cooling system filler cap. Inspect the
gasket th
at 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 in
stall 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.
i02151264
Cooling S ystem Coolan t
Extender (ELC
)-Add
The Perkins Extended Life Coolant (ELC) does not
need the frequent addition of Supplemental Coolant
Additives (SC
A) that are associated with conventional
coolants. The Extender only needs to be added once.
Check the coo
ling system only when the engine is
stopped and cool.
1. Loosen the co
oling system filler cap slowly in
order to relieve pressure. Remove the cooling
system filler cap.
2. It may be necessary to drain enough coolant from
the cooling system in order to add the Extender.
3. Add Extender according to the requirements for
your engine’s cooling system capacity. Refer to
this Operat
ion and Maintenance Manual, “Refill
Capacities” in the Maintenance Section for the
capacity of the cooling system for your engine.
Refer to thi
s Operation and Maintenance Manual,
“Fluid Recommendations” information for the
Perkins ELC Extender.
4. Clean the cooling system filler cap. Inspect the
gasket of the cooling system filler cap. If the gasket
is damaged
then replace the cooling system filler
cap. Install the cooling system filler cap.
i02151299
Cooling Sy s tem C o olant Level
- Check
Engines With a Coolant Recovery
Tank
Note: The cooling system may not have been
provided by Perkins. The procedure that follows
is for typical cooling systems. Refer to the OEM
information for the correct procedures.
Check the coolant level when the engine is stopped
and cool.
1. Observe the coolant level in the coolant recovery
tank. Maintain the coolant level to “COLD FULL”
mark on the coolant recovery tank.
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