Cooling System Coolant Level - Check - Perkins 4008-30 Operation And Maintenance Manual

SEBU9077-02
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
the drain plug on the radiator. Close the drain cock
or install the drain plug (3) in the oil cooler.
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 coolant. Refer to
Perkins Diesel Engines Fluids Recommendations
for more information on cooling system
specifications.

Cooling System Coolant Level - Check

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 53
Typical example
4. Isolate the electrical supply to the engine. Remove
the filler cap. Check that the coolant level is within
25 mm (1.0 inch) of the bottom of the filler pipe.
Clean the cooling system filler cap (1) and inspect
the seal (2). If the seal is damaged, discard the old
filler cap and install a new filler cap. If the seal is
not damaged, use a suitable pressurizing pump 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, replace
the filler cap.
5. Install the cooling system filler cap.
6. Install power to the engine. Start the engine and
operate the engine. Inspect the cooling system for
leaks. Ensure that the cooling system operates at
the correct temperature.
Cooling System Coolant Level
- Check
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.
Check the coolant level when the engine is stopped
and cool.
71
Maintenance Section
g01239656
i02415245