operators_manual

Transmission Gear Display
Indicating clockwise from the upper-left:
•
Transmission mode
• Current gear
• Drive mode
• Gear Shift Assist (option)
Vehicles with PACCAR or Eaton
automated transmissions will show the
transmission mode, current gear, and
diagnostic information associated with the
transmission. This display does not apply
for vehicles with Allison transmissions.
Automatic Transmissions
An automatic transmission makes shifting
much easier. It remains important to
completely understand how to operate the
transmission to optimize its efficiency.
Please read the manual for your automatic
transmission included with your vehicle.
WARNING
DO NOT leave the cab of your vehicle
without
applying the parking brake.
The truck could roll and cause an acci-
dent resulting in death or personal in-
jury. Always apply the parking brake
before you leave the cab.
Operating Manual Transmissions
The transmission shift pattern for your
vehicle may be located on the shift control
knob. In addition to understanding the shift
pattern and its location, you should read
the transmission manufacturer’s manual
provided with your vehicle before operating
the vehicle. After making sure the vehicle's
oil and air pressure are correct and all
other parts and systems are in proper
working condition:
1. For vehicles with a clutch pedal,
locate the clutch pedal and engage
the clutch brake.
2. Shift into a low gear.
CAUTION
Always use first gear or a low speed
range
to start the vehicle in motion.
The use of a higher gear or speed
range forces undue strain on the en-
gine, clutch, and other transmission
components, and may cause damage.
3. Evaluate the road surface
conditions and terrain your vehicle
is on. Select a gear low enough to
let your vehicle start forward with
the throttle at idle.
4.
Push the parking brake valve
handle (yellow) against the dash
panel to release the brakes.
5. Release the clutch pedal (manual
only), then gradually accelerate to
permit smooth starting.
6. DO NOT allow your vehicle to roll
(even a little) in the opposite
direction during clutch
engagement. If you need to start
up on an incline, apply your service
brakes before you release the
parking brake. Then release your
service brakes as you engage the
clutch and apply throttle.
DRIVING - Transmission
112 Y53-6096-1C1 (09/20)
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