Operation and maintenance manual

96 SEBU8601-01
Maintenance Section
Cooling System Coolant (ELC) - Change
g02350785
Illustration 54
Typ ical exam p le
2. Open the drain cock or remove the drain plug (1)
on the engine. Also remove the drain plug (2).
Open the drain cock or remove the drain plug on
the radiator.
Allow the coolant to drain.
NOTICE
Dispose of used engine coolant or recycle. Various
methods have been proposed to reclaim used coolant
for reuse in engine cooling systems. The full distillation
procedure is the only method acceptable by Perkins to
reclaim the coolant.
For information regarding the disposal and the
recycling of used coolant, consult your Perkins dealer
or your Perkins distributor.
Flush
1. Flush the cooling system with clean water in order
to remove any debris.
2. Close the drain cock or install the drain plug in 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, in order to avoid air locks.
Cooling system air locks may result in engine damage.
3. Fill the cooling system with clean water. Install the
cooling system filler cap.
4. Start and run th
e engine at low idle until the
temperature reaches 49 to 66 °C (120 to 150 °F).
5. Stop the engin
e 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 dr
ain 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, in order to avoid air locks.
Cooling system air locks may result in engine damage.
2. Fill the
cooling system with Extended Life
Coolant (ELC). 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. Operate the engine
in ord
er to open the engine thermostat. This
procedure will allow any air in the system to be
purged. Decrease the engine speed to low idle.
Stop t
he engine.
4. Maintain the coolant level at the maximum mark
that
is correct for your application.
g00103639
Illustration 55
Filler cap