Performance Skill Standard:
Conditions of Performance:
- Given a typical tractor-trailer rig with at least a 15,000-lb. load, a typical road surface, and a trip to make…
Statement of Work to be performed:
- …The driver will start, move (drive), and steer the tractor-trailer.
- Start and drive tractor trailer such that he/she scores acceptable proficiency rating on an operational checklist for basic controls in areas such as executing sharp left and right turns, centering the vehicle, and maneuvering in restricted areas
- Keep rig in center of traffic lane
- Avoid obstacles on both sides, front, and back
- Achieve smooth and effective acceleration and stopping
- Position rig to begin and complete turns in lane
Performance Elements and Assessment Criteria:
- Get into cab, adjust seat, and fasten seat belt.
- Start, warm up, cool down, and shut off engine.
- Get out and check position for obstructions, position, and paths or use appropriate spotters with clearly understood signals.
- Judge path and clearances of trailer.
- Activate warning flashers prior to moving into reverse gear. Tap horn periodically if tractor does not have a back-up alarm. (Keep window open and radio off.)
- Position vehicle correctly before beginning a backing/docking maneuver.
- Execute reverse steering of an articulated vehicle.
- Back slowly (using idle speed) in straight and curved lines.
- Constantly check on both sides and to the rear when backing – look in mirrors; watch for things that could tilt trailer; watch for overhead obstructions; watch behind tractor tires.
- Pull up and start over when necessary
- Park trailer in jackknife and parallel positions.
- Parallel park rig.
- Use and adjust for sliding tandems on trailers.