Ditch Witch 420sx, Руководство оператора

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Prepare - 46
420sx Operator’s Manual
Classify Jobsite
CMW
Classify Jobsite
Inspect Jobsite
• Follow U.S. Department of Labor regulations on excavating and trenching (Part 1926, Subpart P) and
other similar regulations.
• Contact One-Call (811) and any utility companies which do not subscribe to One-Call.
• Inspect jobsite and perimeter for evidence of underground hazards, such as:
– “buried utility” notices
– utility facilities without overhead lines
– gas or water meters
– junction boxes
– drop boxes
– light poles
– manhole covers
– sunken ground
• Have an experienced locating equipment operator sweep area within 20’ (6 m) to each side of trench
path. Verify previously marked line and cable locations.
• Mark location of all buried utilities and obstructions.
• Classify jobsite.
Select a Classification
Jobsites are classified according to underground hazards present.
If working... then classify jobsite as...
within 10’ (3 m) of a buried electric line electric
within 10’ (3 m) of a natural gas line natural gas
in sand, granite, or concrete which is capable of producing
crystalline silica (quartz) dust crystalline silica (quartz) dust
within 10’ (3 m) of any other hazard other
NOTICE: If you have any doubt about jobsite classification, or if jobsite might contain unmarked
hazards, take steps outlined previously to identify hazards and classify jobsite before working.