2-9. OPERATE DRIVERS SEAT (Cont)
adjustment knob (13) counterclockwise to
lower lumbar support and clockwise to raise
Adjust backrest cushion (11) tilt by lifting
backrest cushion tilt adjustment release
lever (7) and moving backrest cushion to
(4) Adjust backrest extension (12) height by pulling up or pushing down on backrest extension.
d. Armrest (8) adjustment.
(1) Adjust tilt by turning armrest tilt adjustment knob (9) clockwise to increase tilt of armrest (8) and
counterclockwise to decrease tilt of armrest.
(2) Height of armrest (8) can also be adjusted. If adjustment is required, notify Unit Maintenance.