Perkins 4006 TRS Gas Operation And Maintenance Manual page 61

SEBU8190-02
5. If equipped, open the drain cock or remove the
drain plug (4) on the cooler.
Allow the system 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. Install drain plug (1) and tighten the drain plug (1)
securely. Close valve (2).
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.
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. Open
the drain plug (1) in the cylinder block. Open the
drain valve (2). Allow the water to drain. Flush the
cooling system with clean water.
Fill
Note: Refer to the OEM for information on
cogeneration engines.
1. Install the drain plug (1) in the cylinder block and
tighten securely. If equipped, close the drain cock
or install the drain plug on the radiator. Close the
drain valve (2). If equipped, close the drain cock or
install the drain plug (4) on the 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.
Cooling System Coolant - Change
Illustration 36
Typical example
2. If equipped, loosen the vent screw (3). Fill the
cooling system with the correct specification of
coolant. Refer to the Operation and Maintenance
Manual, "Fluid Recommendations" for more
information on cooling system specifications. Fill
the cooling system until coolant free of air flows
from the vent screw.
Note: Ensure that the cooling system is full before
operating the engine.
3. Stop filling the cooling system. Tighten the vent
screw securely. Check that the coolant level is
within 25 mm (1.0 inch) of the bottom of the filler
pipe.
4. Install the cooling system filler cap.
5. Install power to the engine. Start the engine.
Operate the engine to purge the air from the
cavities of the engine block. Stop the engine and
allow the engine to cool. Refer to Operation and
Maintenance Manual, Manual Stop Procedure for
more information.
6. Isolate the electrical supply to the engine. Loosen
the cooling system filler cap slowly to relieve any
pressure. Remove the cooling system filler cap.
Check that the level of coolant is correct. If
necessary, add more coolant. Refer to Operation
and Maintenance Manual, "Cooling System
Coolant Level - Check" for more information.
61
Maintenance Section
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