Line Operation Quality Assurance

Cutting and Marking Pipe

  • Use saws-all to cut out-flowing pipe at the end of the bell and the beginning of the spigot of every pipe (See Picture C1).
  • Ream the edge of the bell and spigot end with a reamer knife (See Picture C2).
  • Wrap a gasket in the gasket valley of every spigot (See Picture C3), wrap black plastic wrap around the gasket (See Picture C4), and tape plastic wrap down with black electrical tape (See Picture C5).
  • On the inside of every bell, use a china marker to write operator initials, the date, and number pipe that particular pipe is for the day (ex: pipe #1, pipe #2, etc.) (See Picture C6).
  • Ensure pipe rolls smoothly onto the rack.
  • Twice per shift: Check the SeC pipe I.D. stamp and the AASHTO stamp on the pipe. Make sure the I.D. stamp is displaying the proper diameter, and that both stamps appear clearly and legibly every ten feet (See Picture C7).
  • At the beginning of every shift: Ensure the Month/Year stamp and the Shift# stamps are accurate (See Picture C8). Make sure the Day of the Month stamp is accurate (See Picture C9).
  • Throughout the shift: The spigot from the first pipe cut up for a sample on that shift should be taken. Throughout the shift, make sure the spigot fits properly into the bell of the pipe being produced. A proper fit should not require extreme force to get the spigot in the bell. When the spigot is inside the bell, you should be able to turn it clockwise or counterclockwise with relative ease (See Picture C10).
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Picture C1
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Picture C2
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Picture C3

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Picture C4
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Picture C5
Picture C6

MANFCTR ID 294
Picture C7
MONTH YEAR SHIFT
Picture C8 – The pipe should be marked clearly every 10 feet detailing when the pipe was made. (The “07” indicates 2007 in this photo with the arrow pointing to the month of the year-the second arrow shows shift of the day.)
DAY OF MONTH2
Picture C9 – The pipe should be marked clearly every 10 feet with when the pipe was made. (The day of the month. Add the number on left with number on right.)

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Picture C10