Perkins XGA 1600 Series Operation And Maintenance Manual page 70

70
Maintenance Section
Coolant (ELC) - Change
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.
1. 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.
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 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.
3. Fill the cooling system with clean water. Install the
cooling system filler cap.
4. Start and run the engine until the water
temperature regulator opens and the fluid levels
decreases in the header tank.
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 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 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 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 for 1 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. If necessary, repeat step 3.
Maintain the coolant level in the expansion bottle
(if equipped) at the correct level.
Illustration 41
Filler cap
5. Clean the cooling system filler cap and inspect the
gasket. If the gasket is damaged, discard the old
filler cap and install a new filler cap. If the gasket
is not damaged, use a suitable pressurizing pump
in order to pressure test the filler cap. The correct
pressure is stamped on the face of the filler cap. If
the filler cap does not retain the correct pressure,
install a new filler cap.
6. Start the engine. Inspect the cooling system for
leaks and for correct operating temperature.
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