80
S08
MAINTENANCE
CHANGING THE COOLANT AND CLEANING
THE COOLING SYSTEM
DRAINING COOLANT
Special tool
Number
Description
Illustration
965400003
Coolant
pump
WARNING !
Do not open the coolant filler cap in the expansion tank
if the engine is hot. Hot coolant and steam may spray
out and cause burns. If the ap has to be opened do it
slowly to release the pressure before removing the cap.
Use protective gloves as coolant can cause irritation if it
comes in contact with the skin.
1. Open the expansion tank cap.
2. Position the hose from the coolant pump in an empty
container.
3. Connect the pump to the draining nipple in the
cylinder block. See illustration.
Drain nipple in the cylinder block
4. Connect the pump’s 2 cable terminals to the battery’s
negative and positive terminal. Make sure that
the drainage starts. If the drainage does not start:
Change the position of the cable terminals.
5. Repeat the procedure at the cooling system’s lowest
drainage point. The location of the lowest drainage
point on the engine may differ depending on engine
application.
DRAINING THE SEA WATER CIRCUIT
1. Close the bottom valve on the sea water inlet and
remove the connection pipe (1) on the outlet from the
heat exchanger.
2. Remove the cover (2) from the sea water pump to
empty the pump completely.
The lowest point in the sea water circuit may be at
different points, but it is usually in the sea water pump
intake (3).
IMPORTANT !
Plug the connections to prevent dirt ingress into the
engine.
Summary of Contents for N13.700 CR3 HD
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