Volvo EC35, Operator'S Manual, Page: 93 / 140

Service and maintenance
Cooling system 91
Topping up coolant
IMPORTANT! If the temperature gauge is in the red section or
the engine temperature control light (10) lights up, coolant
needs to be added immediately.
IMPORTANT! To avoid damage to engine and cooling system
different coolants or corrosion protection must not be mixed,
see page 90.
1 Shut down the engine.
2 Slowly remove the compensation tank cap and relieve the pres-
sure in the cooling system.
3 Top up coolant.
4 Check the radiator hoses for leak tightness. Replace defective
parts and tighten loose hose clamps.
NOTE! Change coolant every 2000 hours or every second
year if the system is filled with Volvo Coolant VCS.
NOTE! Change coolant every 2000 hours or every second
year if the system is filled with Volvo Coolant.
Coolant change
IMPORTANT! To avoid damage to engine and cooling system
different coolants or corrosion protection must not be mixed,
see page 90.
Change coolant every 2000 hours or every second year if the
system is filled with Volvo Coolant VCS.
Change coolant every 2000 hours or every second year if the
system is filled with Volvo Coolant.
1 Loosen and remove the radiator cap (8.1) on the radiator (8).
2 Unscrew the drain plug (8.2) and let the coolant run out.
3 Take the compensation tank (7) out of bracket and empty it.
NOTE! On machines with heating open the heating tap in the
cab.
4 Screw the drain plug tightly back in once all fluid has run out.
5 Loosen the coolant return hose (8.3).
6 Fill coolant into the radiator (8) through the filler neck (8.1), until
the coolant starts to run out through the return hose (8.3).
WARNING!
Make sure that the cooling system has cooled down before
removing the radiator cap, as otherwise there is a risk of
injury by hot coolant squirting out.
WARNING!
When opening the caps on compensation tank and radiator
there is a risk of scalding because of the overpressure in
the cooling system. Catch running out coolant and dispose
of environmentally.
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7
8.1
8
8.2
8.3