Perkins 1706EA-E93TA Operation And Maintenance Manual page 98

98
Maintenance Section
Coolant (Commercial Heavy-Duty) - Change
Illustration 83
The cooling system drain valve is towards the bottom
of the radiator.
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 to
relieve any pressure. Remove the cooling system
filler cap.
2. Open the cooling system drain valve.
Allow the coolant to drain.
Flush
1. Flush the cooling system with clean water to
remove any debris.
2. Close the drain valve.
Fill the cooling system no faster than 19 L (5 US gal)
per minute to avoid air locks.
3. Fill the cooling system with clean water and
operate the engine, ensure that the thermostat
opens. Stop the engine and allow the engine to
cool.
4. Drain the cooling system.
5. Fill the cooling system with clean water and
operate the engine until the engine is warmed to
82 °C (180 °F).
6. Stop the engine and allow the engine to cool. Drain
the cooling system.
Fill
Fill the cooling system no faster than 19 L (5 US gal)
per minute to avoid air locks.
1. Fill the cooling system with coolant/antifreeze.
Refer to this Operation and Maintenance Manual,
"Fluid Recommendations" for more information on
g02351659
cooling system specifications. Do not install the
cooling system filler cap.
2. Start and run the engine at low idle. Increase the
engine rpm to 1500 rpm. Run the engine at high
idle for 1 minute to purge the air from the cavities
of the engine block. Stop the engine.
3. Check the coolant level. Maintain the coolant level
within 13 mm (0.5 inch) below the bottom of the
pipe for filling. Maintain the coolant level within
13 mm (0.5 inch) to the proper level on the sight
glass.
4. Clean the cooling system filler cap. Inspect the
gasket that is on the cooling system filler cap. If
the gasket that is on the cooling system filler cap is
damaged, discard the old filler cap and install a
new filler cap. If the gasket that is on the cooling
system filler cap is not damaged, perform a
pressure test. The correct pressure for the cooling
system filler cap is stamped on the face of the
cooling system filler cap. If the cooling system filler
cap does not retain the correct pressure, install a
new cooling system filler cap.
M0087475-06
NOTICE
NOTICE