Peterbilt Medium Duty Trucks Operator's Manual after 1-07

Operating Instructions
Introduction
SEATS
This section covers the operation and safe use of your
Medium Duty seats. For further information on features and
adjustment of the seat, see the manufacturer's literature
included with the vehicle.
Driver's Seat with Air Suspension (Option)
Seats
WARNING! Before driving or riding in the vehicle,
be sure that there is adequate head clearance
at maximum upward travel of seat. Serious
injury may occur if head clearance is not adequate.
Seat Adjustment
WARNING! Do not adjust the driver's seat while
the vehicle is moving. A sudden or unexpected
seat movement can cause the driver to lose control
of the vehicle. Make all adjustments to the
seat while the vehicle is stopped.
CHUGGER-SNUBBER
LOCK-OUT FEATURE
Move handle down to
unlock
BACKREST TILT
Rotate knob for
infinite selection of
settings
• After adjusting the seat and before driving off,
always check to be sure that the seat is firmly
latched in position.
Standard Driver's Seat
The standard driver's seat can be adjusted forward and rearward.
These movements are each controlled by levers
located on the FRONT of the seat.
FRONT CUSHION
HEIGHT
Lift and pull forward
to raise position
FORE & AFT ISOLATOR
Move to left and slide
seat to desired position
Peterbilt Ultraride II Highback Air Seat
SEAT RIDE HEIGHT
LUMBAR ADJUSTMENT
Push switch up to inflate
Push down to deflate
03017
Medium Duty (R10/06) Y53-6008 – 45 –