Perkins 4006-23 Operation And Maintenance Manual page 59

SEBU9077-01
Illustration 44
Typical example
4. Open the drain cock or remove the drain plug (3) in
the oil cooler.
5. Allow the coolant to drain.
NOTICE
Dispose of used engine coolant or recycle. Various
methods have been proposed to reclaim used cool-
ant for reuse in engine cooling systems. The full distil-
lation 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
distributor.
Flush
1. Flush the cooling system with clean water to
remove any debris.
2. Close the drain cock or install the drain plug (2) in
the cylinder block. Close the drain cock or install
the drain plug on the radiator. Close the drain
cocks or install the drain plug (3) in the oil cooler.
Tighten the plugs securely.
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 (1).
4. Install power to the engine. Start the engine.
Operate the engine until the temperature reaches
49 °C to 66 °C (120 °F to 150 °F).
5. Stop the engine and allow the engine to cool.
Isolate the electrical supply to the engine. Loosen
the cooling system filler cap (1) slowly to relieve
any pressure. Remove the cooling system filler
cap. Open the drain cock or remove the drain plug
(2) in the cylinder block. Open the drain cock or
remove the drain plug on the radiator. Open the
drain cock or remove the drain plug (3) in the oil
cooler. Allow the water to drain. Flush the cooling
system with clean water.
Fill
1. Close the drain cock or install the drain plug (2) in
the cylinder block. Close the drain cock or install
g01211161
the drain plug on the radiator. Close the drain cock
or install the drain plug (3) in the oil cooler.
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 Perkins (ELC). Refer to
the Operation and Maintenance Manual, "Fluid
Recommendations" topic (Maintenance Section)
for more information on cooling system
specifications.
Note: Ensure that the filler cap is installed before
operating the engine.
3. Install power to the engine. Start the engine.
Operate the engine to purge the air from the
cavities of the engine block. Use the normal
shutdown procedure to stop the engine.
Illustration 45
Typical example
Maintenance Section
Cooling System Coolant (ELC) - Change
NOTICE
59
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