Clear the work area of debris. Know the location of buried power cables and know the location of buried pipes. Keep the work area clear of personnel while you operate the work tool.
- Move the boom to the desired position on the trencher. Refer to Operation and Maintenance Manual, "Work Tool Position Adjustment".
- Enter the host machine.
- Fasten the seat belt and lower the armrest.
- Start the engine.
- Disengage the parking brake.
- Raise the trencher to the transport position. Refer to Operation and Maintenance Manual, "Transport Position".
- Move the host machine to the desired location.
- Lower the trencher so that the boom is parallel with ground.
- Increase engine speed to HIGH IDLE.
- Activate the auxiliary hydraulic control in order to operate the trencher.
- Slowly, tilt the trencher forward in order to start the trench.
Note: Activate the continuous flow control for long cuts.
- Back up the machine slowly as you increase the cutting depth.
Note: As you increase the cutting depth, the front wheels of the host machine will raise off the ground. Raise the trencher so that the front wheels maintain contact with the ground and the skid plate of the trencher maintains contact with the ground.
- When the desired cutting depth has been reached, continue to back up the machine until the trench is complete.
- Once the trench is complete, deactivate the auxiliary hydraulic control.
Note: Feed rates will vary with the depth of the cut and with the type of material. Deep cuts or hard material require a slow feed rate. A faster feed rate may be possible with shallow cuts or with loose material.
- Raise the boom from the trench.
- Repeat Step 7 through Step 15 until the job is complete.
Note: The turning radius will vary with the cutting angle of the boom while you are digging a trench. A smaller turning radius can be obtained when the boom is at a 90° angle to the ground. As the cutting angle decreases, a wider turning radius is necessary.