Volvo TAMD74C, Руководство оператора

Страница: 45 / 88

43
Maintenance: Freshwater system
5. When the coolant is free of air bubbles, close the
ventilation cocks.
6. Cease filling when the correct level is attained.
7. Start the engine and run it until it reaches operat-
ing temperature.
IMPORTANT! The engine must not be started
before the system has been bled and filled.
8. Stop the engine and let it cool. Check the coolant
level and top up if required.
Coolant. Drain
WARNING! Stop the engine and allow it to cool
down before draining. Hot fluids and hot surfac-
es can cause burns.
WARNING! Glycol is a health hazard (poison).
Collect the old coolant and leave it to a destruc-
tion plant.
The coolant is drained via the taps (1–3) and the
plugs (4, 5).
Most of the coolant is drained via tap (1) but all drain
points must be opened for all coolant to be drained.
1. Remove the filler cap on the expansion tank.
2. Open vent cock (A) and vent cocks (B) by the
heat exchanger .
3. Connect a suitable hose to tap (1) on the cylinder
block. Open the tap and let the coolant run out into
a suitable vessel.
IMPORTANT! Check that the coolant really runs
out. Deposits may need to be removed inside the
drain plugs/taps.
4. Continue with the other drain points until all five
have been opened and all coolant has been
drained off.
5. Drain any other systems such as heater, water
heater, etc., connected to the freshwater system
too.
6. Close all drainage points.
1
2
4
A
5
3
B