Cooling System Coolant Level - Check; Crankshaft Vibration Damper - Inspect; Cooling System Coolant Extender (Elc) - Add - Perkins 4006-23 Operation And Maintenance Manual

60
Maintenance Section

Cooling System Coolant Extender (ELC) - Add

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
Extender (ELC) - Add
For Perkins ELC to achieve 12000 hours an extender
must be added at 6000 hours. For a suitable
extender, contact your Perkins distributor.
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.
Illustration 46
1. Remove the cooling system filler cap (1) slowly in
order to relieve pressure.
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2. Maintain the coolant level within 25 mm (1.0 inch)
of the bottom of the filler pipe.
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Illustration 47
3. 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 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,
replace the filler cap.
Install the cooling system filler cap.
4. Inspect the cooling system for leaks.
Crankshaft Vibration Damper -
Inspect
Depending on the engine variant the engine can be
equipped with one or two crankshaft vibration
dampers. The crankshaft vibration damper limits the
torsional vibration of the crankshaft. Damage to the
crankshaft vibration damper can increase torsional
vibrations. A damaged vibration damper can result in
damage to the crankshaft and to other engine
components.
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