A cooling apparatus of a work machine which facilitates maintenance such as cleaning,
check and remedy of cooling equipments such as a radiator, an oil cooler and an
after cooler is provided. A frame which forms an opening portion on a ventilation
passage is provided on an upper stream side of a fan, and a radiator and an oil
cooler or a radiator and an oil cooler and an after cooler are arranged in parallel
at the opening portion of the frame. At least one of the radiator and the oil cooler
or at least one of the radiator and the oil cooler and the after cooler is mounted
to the frame detachably. A fan shroud is mounted to the frame. A part of the fan
shroud may be detachable.
