Digger Derrick Operator

Practical

Practical Exam Content

Exam Format

Practical examination demonstrating proficiency operating a Digger Derrick. Candidates must complete hands-on tasks demonstrating safe equipment operation, pre-operational inspection, load handling, hand signal recognition, auger operation, utility pole handling, boom control, and shutdown procedures.

Skills Tested

• Task 1: Pre-Operational Inspection – Demonstrate the ability to conduct a pre-use inspection by identifying designated digger derrick components, explaining inspection procedures, and recognizing potential deficiencies that could affect safe operation.
• Task 2: Chain in Designated Area 2 – Demonstrate the ability to safely lift and position a chain into a designated landing area while maintaining load control, avoiding contact with the course or equipment, and preventing unsafe load movement.
• Task 3: Hand Signals – Demonstrate the ability to recognize and respond correctly to standard crane hand signals, including hoist, swing, lower, boom, telescope, and combined movement signals.
• Task 4A & 4B: Negotiate Corridor (Forward and Reverse) – Demonstrate precision load handling by maneuvering a test weight through a designated corridor in forward and reverse directions while maintaining chain control, avoiding obstacles, and accurately placing the load within the designated area.
• Task 5A: Unstow Auger – Demonstrate the ability to safely remove the auger from its storage position, properly position the boom, and prepare the equipment for drilling while avoiding shock loading and improper handling.
• Task 5B: Auger Hole – Demonstrate the ability to safely operate the auger by positioning the tool correctly, maintaining equipment stability, and drilling to the required depth while avoiding unsafe operating conditions.
• Task 5C: Stow Auger – Demonstrate the ability to safely return the auger to the storage position by following proper stowage procedures, securing the auger strap, and maintaining controlled boom operation.
• Task 6A: Pick Up Utility Pole – Demonstrate the ability to safely lift and position a utility pole using the digger derrick while maintaining control, properly securing the load, and avoiding contact with obstacles.
• Task 6B: Place Utility Pole in Designated Area – Demonstrate the ability to accurately position and lower a utility pole into a designated area while maintaining control of the load and avoiding contact with the ground, obstacles, and surrounding equipment.
• Task 7: Stow Boom in Cradle – Demonstrate proper boom stowage and safe shutdown procedures by fully retracting and securing the boom, retracting the load line, and preparing the digger derrick for safe operation or storage.