freightliner S2 Operator's Manual page 40

Bostrom Seat
Seat Slide Adjustment
Move the seat slide and isolator lever, shown in
Fig. 5.10, to the left and hold it there to slide the
seat forward or backward to the desired position.
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1. Backrest Tilt Lever
2. Air Lumbar Support Control Valve (optional)
3. Damper Adjustment Switch
4. Height Adjustment Switch
5. Seat Cushion Tilt Knob
6. Seat Slide and Isolator Lever
7. Lumbar Support Knob (standard)
Fig. 5.10, Bostrom Seat
Isolator
To engage the isolator, put the seat slide and isolator
lever in the center position. Lock out the isolator by
moving the lever to the right.
Lumbar Support
To increase lumbar support, rotate the lumbar sup-
port knob forward. To decrease lumbar support, ro-
tate the knob rearward.
On seats equipped with air lumbar support, press the
control valve upward to increase lumbar support.
Press the control valve downward to decrease lum-
bar support.
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Seat Cushion Tilt
Rotate the seat cushion tilt knob to increase or de-
crease seat cushion tilt.
Backrest Tilt
To tilt the backrest, lean forward slightly to remove
pressure from the cushion and hold the backrest tilt
lever rearward. Lean backward slowly to the desired
position and release the lever to lock the backrest in
place.
Ride Height and Damper Adjustment
To raise the seat, press the upper portion of the
height adjustment switch. To lower the seat, press
the lower portion of the switch.
Press the damper adjustment switch to adjust the
damper.
National 2000 Series Seat
Seat Slide Adjustment
Move the seat slide lever, shown in
left and hold it there to slide the seat forward or
backward to the desired position. Move the lever
back to its original position to lock the seat in place.
Isolator
To use the isolator feature, turn the isolator handle to
the horizontal position. Turn the isolator handle down
to lock out the isolator.
Lumbar Support
To adjust the lumbar support, use the lumbar support
switch on the side of the seat to give more or less
support to your lower back.
Backrest Tilt
To tilt the backrest, turn the backrest tilt knob until
the desired position is reached.
Seat Cushion Adjustment
To adjust the height of the front of the seat cushion,
lift the front cushion height adjustment handle, and
pull forward or push back to the desired setting.
To adjust the height of the rear of the seat cushion,
remove your weight from the seat and turn the rear
cushion adjustment knob to one of three positions.
Cab Features
Fig. 5.11, to the
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