Perkins 402F-05 Operation And Maintenance Manual page 60

60
Maintenance Recommendations
Coolant (ELC) - Change
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
pressure.
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.
Illustration 31
Typical example
2. Open the drain cock or remove the drain plug (1)
on the engine. 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 distilla-
tion procedure is the only method acceptable by Per-
kins 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.
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 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.
Do not fill the cooling system faster than 5 L
g03380650
(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.
SEBU9064
NOTICE
NOTICE