Seats, General Information
Unless otherwise noted, all seat adjustments should
be made while seated and before the engine is
started.
Due to the high degree of adjustability of mid- and
high-back air suspension seats, it is possible to com-
bine the seat back recline adjustment and the seat
slide adjustment so that the seat back contacts the
back wall. Use care when adjusting the seat to pre-
vent damage to the seat and the cab interior.
WARNING
Keep hands, tools, and other objects away from
the scissor points under the seats. Failure to do
so could cause personal injury.
The following is a description of adjustments that can
be made to various Freightliner-installed seats. Not
all seats have all of the adjustments listed below.
See
Fig. 6.1.
1.
Back Cushion Tilt: This adjustment enables the
back cushion to pivot forward or backward.
2.
Lumbar Support: Lumbar support changes the
shape of the seat back to give more, or less,
support to the occupant’s lumbar (lower back)
area. This adjustment is either mechanical or air
controlled, depending on make and model of the
seat.
3.
Isolator: This feature reduces the amount of road
shock by isolating the occupant from the motion
of the vehicle, and allowing the upper seat to
move in a simple pendulum motion. A lockout
feature is used whenever the isolator is not de-
sired.
4.
Height Adjustment: The entire seat moves up or
down when adjusting the height. The adjustment
is either manually or air controlled, depending on
the make of the seat.
5.
Bottom Cushion Angle, or Fore-and-Aft Bottom
Cushion Height: This feature enables the occu-
pant to raise or lower the front or back of the
bottom cushion. This adjustment is easier to per-
form when all weight is removed from the seat.
10/26/2000
f910149a
1
2
3
4
5
6
7
8
1. Back Cushion Tilt
2. Lumbar Support
3. Isolator Feature
4. Height Adjustment
5. Bottom Cushion Angle (fore-and-aft cushion height)
6. Fore-and-Aft Seat Adjustment (seat track adjustment)
7. Seat Tilt
8. Upper Back Cushion
Fig. 6.1, General Seat Adjustments
Seats and Restraints
6.1
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