TM 5-3805-294-10
0016
TRENCHING - Continued
Do not drive near the edge of an excavation or trench. Failure to comply may result in
injury or death to personnel.
Do not dig under the machine. Failure to comply may result in injury or death to personnel.
To prevent the spoil pile from caving in the excavation, spoil piles should be placed at
least 3 ft (1 m) from trench. Failure to comply may result in injury or death to personnel.
1.
Before starting work, walk the site to uncover hazards and to plan the job.
HYEX01504
Figure 6.
Trenching.
2.
Check for buried utility lines, pipes, and gas or oil pipelines.
3.
Prevent a cave in by digging a "V" shaped trench placing the spoil pile at least 3 ft (1 m) away from the trench.
4.
The deeper the trench, the further away the spoil pile should be placed.
END OF TASK
CLEANING A CAVE IN
1.
If you cannot clean a cave in from the machine's current position, DO NOT back over the trench.
HYEX01503
Figure 7. Cleaning Cave In.
2.
Drive the machine to the cave in.
3.
Park the machine at a 90 degree angle to the trench with the travel motors to the rear of the machine.
