Volvo D12, Operator'S Manual

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Heavy-Duty Service Schedule for VHD-Series 85
Heavy Line / Long Haul Application:
Typical operations include grades of maxi-
mum 12%, moving different types of
freight in high mileage operations more
than 65.000 miles (105,000 km) per year.
Operation should be on normal highway
surfaces of good to excellent concrete or
asphalt. Greater than 30 miles between
starting and stopping.
Vehicle types are: trailer combinations and
straight trucks, double trailers, triple trail-
ers, tankers.
Fire Service Application:
Typical operations include fighting struc-
tural fires on on/off highways with grades
of maximum 20%. Low mileage operation,
3 miles or less between starting and stop-
ping, high horsepower engines are typical.
Typically, GCWR for this application is
less than 88,000 lb (40 metric tons). Opera-
tion on road surfaces made of concrete,
asphalt, maintained gravel, crushed rock
and hard packed dirt or similar surfaces.
Vehicle types are: Ambulance, aerial plat-
form or ladder truck, Tanker truck, pumper
truck, emergency service or utility body.
Rescue Service Application:
Typical operations include specialized vehi-
cles for rapid acceleration to crash sites
away from fire hydrant hookups, grades of
maximum 20%. Low mileage operation, 3
miles or less between starting and stopping,
high horsepower engines are typical. Typi-
cally, GCWR for this application is less
than 88,000 lb (40 metric tons). Operation
on road surfaces made of concrete, asphalt,
maintained gravel, crushed rock and hard
packed dirt or other similar surface
Vehicle types are: Airport fire rescue, rapid
intervention, wrecker, crash fire rescue or
emergency service.