Operator`s manual

Maintenance 99
Cleaning Charge-Air-Cooler
and Radiator Package
Over time, dirt and insects will
accumulate between the fins of the
radiator, air conditioning condenser
and charge-air-cooler. The reduced air
flow reduces the heat transfer from the
components to the air. This increases the load
on the fan and air conditioning compressor
and can result in engine overheating and
other performance related problems, such
as high fuel consumption, etc. Make sure
the radiator/charge-air-cooler package is
inspected regularly. Clean if necessary.
DANGER
Before working on or inspecting a
vehicle, set the parking brakes, place the
transmission in neutral and block the
wheels. Failure to do so can result in
unexpected vehicle movement and can
cause serious personal injury or death.
WARNING
Always wear eye protection when
cleaning radiator, charge-air-cooler
and condenser. Failure to follow this
recommendation may result in eye injury.
The simplest method to clean the package is
to use air pressure or a water stream. This
should be done from the back of the core.
Air pressure should not exceed
30 psi (200 kPa) for radiator and
charge-air-cooler cores. The use of a fin
comb is also a good tool to loosen bugs and
dirt from the fins.
If dirt can not be cleaned off with this
procedure, consult your Volvo Truck dealer.
Inspect the charge-air-cooler for cracks
at every inspection. DO NOT operate
the vehicle with a damaged or broken
charge-air-cooler. To do so would void
the warranty and the engine will not meet
emission regulation requirements.
W2001496