3. Properly dispose of the drained material. Obey
local regulations for the disposal of the material.
Drain Plugs for Factory Installed
Radiators
Illustration 55 g06164641
Typical example
(2) Three cylinder engine radiator drain plug (3) Four cylinder turbocharged engine
radiator drain plug
(4) Four cylinder turbocharged aftercooled
engine drain plug front of radiator
• Tighten drain plug (2) to a torque of 4 N·m
(35.4 lb in)
• Tighten drain plug (3) to a torque of 4 N·m
(35.4 lb in)
• Tighten drain plug (4) to a torque of 6 N·m
(53. lb in)
Flush
1. Flush the cooling system with clean water and a
suitable cleaning agent to remove any debris.
Refer to your Perkins dealer or distributor for
suitable cleaning agents.
2. Install connection hose. Clean the drain plugs.
Install the drain plugs. Tighten drain plug 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 and install
the cooling system filler cap.
4. Start and run the engine at low idle for a minimum
of 30 minutes. The coolant temperature should be
at least 82 °C (180 °F).
88 M0094137-02
Maintenance Section
Coolant (Commercial Heavy-Duty) - Change
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