Kenworth T410, Driver'S Handbook Manual

Page: 165 / 418

CAT: 8612 November 2019 Page 139
OPERATING INSTRUCTIONS
Creep
• Creep allows the vehicle to be driven at a constant speed at
engine idle without the need to hold the throttle pedal position. The
configuration is useful for slow speed applications where steady
vehicle speed is required (e.g. dump / spreader applications).
• The vehicle speed is determined by the selected gear ratio operating
at governed low engine idle speed. Any available gear may be
selected. However, the transmission will downshift or exit Creep if
the engine lugs 150 rpm below the governed low engine idle speed
due to load conditions.
- When a gear is engaged; the clutch remains open until the driver
releases the service brake and applies the accelerator.
- The clutch will close and remain closed after the accelerator is
released, allowing the vehicle to creep at constant engine idle.
- The clutch will also open if the engine lugs 150 rpm below the
governed low engine idle speed due to load conditions.
Launching:
1. Engage the desired gear.
2. Release service brake.
3. Apply the throttle pedal to accelerate the vehicle until the clutch is
closed (engaged).
4. Release the throttle pedal (vehicle will creep at constant engine
idle).
• Upshifts and Downshifts can be made while at constant engine
idle by pushing the Upshift / Downshift buttons. The transmission
may deny a shift and sound a tone if the load of the vehicle or
grade of the terrain falls outside the acceptable range to perform
a shift.
5. Apply accelerator to accelerate the vehicle above idle.
Stopping:
1. Release the accelerator (vehicle will creep at constant engine
idle).
• Upshifts and Downshifts can be made while at constant engine
idle by pushing the Upshift / Downshift buttons.
2. Apply service brake.