Spicer Two-Speed Dual Range Drive Axles - Manual (Page 7)

5
Dual Range Driving
Dual Range Axle Overview
When the axle selector valve lever position is changed, an air-operated shift
system goes into action.
A piston air-shift unit mounted in the axle does the work. When air pressure is
applied to the piston, it shifts the axle from one range to another. A heavy-duty
compression spring assures rapid return action when air pressure is released.
Shifting within the axle is accomplished through Dana exclusive clutch gear-
ing designed for fast, smooth shifting.
There’s no-strain driving in on-off highway operations with an Dana dual
range tandem.
For additional information, call the Dana Call Center at 1-877-777-5360