R750EU5 - IE3 - TE4 - IE4 - ISE4
English          53       Ed.8 / 10-2012
GB
COOLANT REPLACEMENT
Filler Cap (P)
Cock (S)
Follow the procedure below.
1- Start the engine and run it at minimum 
speed for a few minutes. The cooling 
circuit reaches the operating pressure.
2- Turn off the engine and remove the 
ignition key.
3- Let the engine cool down adequately to 
avoid being burnt.
4- Prepare a container of appropriate 
capacity. As for the liquid quantity, see 
“Technical data ”.
5-Unscrew the load plug (P).
Open the plug gently to drain the  pres-
sure. 
6- Open the cock (S).
If there is no coolant drainage tap, 
check to see if there is a drain plug. 
For further information, please consult 
the documentation provided by the 
manufacturer of the vehicle/device in 
which the engine is installed.
7- Let the liquid ow into the container.
8-Close the cock (S).
9- Pour in the new liquid.
The uid level must be up to the base 
of the neck into which the radiator plug 
is screwed. If there is a coolant expan-
sion tank, consult the documentation 
provided by the manufacturer of the 
vehicle/device in which the engine is 
installed. As for the liquid quantity and 
type, see “Technical data ”.
10-Screw again the plug (P).
11-Turn the engine on and keep it running 
at idle speed for a few minutes to bring it 
up to working temperature (70÷80°C).
If the uid level decreases, top it up 
until it is constantly between the refe-
rence marks
12-Turn off the engine and let it cool down 
properly.
13-Check the coolant level and, if neces-
sary, carry out topping-up. (See “Engine 
coolant level check”)
Do not throw away any polluting 
material in the environment. Carry out 
their disposal in compliance with the 
relevant legislation in force.