Air Suspension Seats
Your vehicle may have an air suspension seat.
There are two ways you can adjust the seat.
Height Adjustment
The height adjustment
is controlled by the air
suspension valve. The
lever for the valve is
located on the outboard
side of the driver’s seat.
Pull the lever up to raise the seat. Push the lever
down to lower the seat.
Isolator Lock Lever
The lever is located on
the inboard side of the
driver’s seat.
Move the handle down to lock the seat in place.
This is used to reduce backslap experienced while
in tractor/trailer operation or while operating a
dump truck.
Lever shown in the
Locked Position
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