|
Cooling system
The coolant level
is visible through the transparent walls of the degas tank. The
coolant should be level with the Max mark when the engine
is cold. DO NOT OVERFILL. Allow engine to cool down until the back of
the hand can be held against the cylinder head without discomfort
before removing cap. Only turn the cap to the first stop so that
pressure in the system is released then wait a few seconds before
removing the cap completely.
Never use cold
water to top-up the cooling system of a hot engine, particularly if
the coolant level is very low. This could cause serious damage to the engine.
The system should
only be topped up with a water / anti-freeze mix as specified below.
Ensure that the
pressure cap is re-tightened correctly before running engine.
After two years
the cooling system must be flushed out and coolant replaced. When the
coolant is replaced or if a high quantity of coolant has to be used
for topping up then care must be taken to ensure the system is free
from air. To do this remove the radiator air bleed plug and add
coolant through the degas tank until it can be seen that the top hose
and radiator are completely full. Re-fit the plug and top up to the
correct level. The engine should then be run (with the cab heater
turned on) until it reaches normal working temperature and then
switched off and allowed to cool and the water level re-checked.
If the system is
completely drained it is also necessary to remove the engine air
bleed plug in the thermostat housing. (see right) |