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The OJK uses a tank surrounded by an oil jacket filled with heat transfer oil. The heat transfer
oil is heated by a diesel fired burner and is circulated in the oil jacket by a pump. In addition to
the oil jacket there is a coil surrounding the agitating auger in the tank. Heat transfer oil is
pumped through this coil to facilitate heating of the asphalt material. The temperature of the
product and the heat transfer oil is automatically maintained by electronic temperature con-
trols.
The heated asphalt is applied to the crack by an electrically heated hose and wand. The heat-
ing element in the hose and wand keep the product at working temperature thus eliminating
wand "freeze up". No clean-up or flushing of the wand & hose is required.
Power is supplied by a diesel engine. The engine drives a 24 volt alternator for the heated
hose and wand. It also drives a hydraulic pump that powers the heat transfer oil circulation
pump, product pump, and the agitating auger.
Heat from Burner
Heat Transfer Oil
Insulation
DESCRIPTION
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