How To Fill The Coolant Circuit - Perkins 1106 Series User Handbook Manual

Chapter 5

How to fill the coolant circuit

Warning! If coolant is to be added to the circuit during
service, allow the engine to cool before the coolant
is added. Remove the filler cap slowly as dangerous
coolant could be discharged if the coolant is still hot
and the system under pressure.
Do not put too much coolant in the coolant circuit.
There is a relief valve in the filler cap which will open
and release hot coolant if too much coolant is added.
Caution: If coolant is added to the circuit during
service, it must consist of the same original mixture
as used to fill the system.
1. Remove the filler cap (1) of the header tank and
slowly fill the coolant system until the coolant level
is just below the pipes inside the header tank.
2. Wait for five to ten minutes and check the coolant
level, add coolant if necessary. Fit the filler cap.
3. Start the engine. When it has reached its normal
temperature of operation, stop it and let it cool.
4. Remove the filler cap of the header tank and add
coolant until the level of the coolant is between 25
mm (1.00in) and 40mm (1.50in) below the bottom
of the pipes. Fit the filler cap.
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Figure 1