Hale DSD User Manual
Page 9
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GEARBOX
Hale offers a variety of pump gear ratios to accommodate a wide range of apparatus manufacturer
requirements.
The gearbox (Figure 1-8) consists of a gearbox, gear set, and input and output drive shafts that are
both made of heat treated nickel steel. This unit can withstand the full torque of the engine in road
operating conditions up to 16,000 pounds-feet.
If the gearbox is equipped with a power shift system, an in-cab control valve is provided for mode
selection. This control locks in place for road or pump operation. Warning lights are provided to
alert the operator when the gearbox has fully shifted from road to pump position.
Figure 1-8. Gearbox
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