Installing the Pipe Support Assembly

Standard Operating Procedure

Installing the Pipe Support Assembly

Installing the Pipe Support Assembly

Installing the Pivot Weldment

Precondition

  • The machine is OFF.

  • All controls are in the OFF or neutral position.

  • Tracks are blocked, as applicable.

  1. 1.
    Attach safety locks and tags to the machine in accordance with the site-specific procedures.

    NOTE

    Refer to Safety Locks and Tags Minimum Requirements in the Maintenance manual.

  2. 2.
    Make sure that the machine is in a zero-energy state.
  3. 3.

    WARNING

    Risk of Explosion

    Can cause personal injury or death.

    1. Before you weld, flame cut, or grind on the machine, clean the machine and the surrounding area from dust and other flammable substances with a nonflammable cleaner.

    2. Make sure that the premises are adequately ventilated.

    WARNING

    Risk of Personal Injury

    The electric arc includes visible, ultraviolet, and infrared light. Failure to follow these instructions can cause serious personal injury.

    1. Put on protective clothing and equipment during all welding operations.

    2. Use safety goggles to protect the eyes from heat, glare, and flying fragments of hot metals during all oxyacetylene welding and cutting processes.

    3. Use safety goggles and a hard hat that has an applicable filter glass to protect against the intense ultraviolet and infrared rays during all electric welding processes.

    4. When others are near the electric welding processes, the area must be screened to prevent the arc from being seen either directly or by reflection from glass or metal.

    Remove the clamp channel (Figure 9, item A) from the old pivot weldment and weld it to the new Pivot Assembly.
    Figure 9

    A

    Clamp channel

  4. 4.
    Install the cable mount studs (Figure 10, item A) onto the new pipe support.
    Figure 10

    A

    Cable mount studs

  5. 5.
    Tack weld the Pivot Assembly with the marks that were made in a previous step.

    NOTE

    It can be necessary to do a trial of the pipe support arm installation to make sure that the weldment positions are correct (Figure 11).

    Figure 11

    A

    Keeper plate

    NOTE

    Make sure that the welds holding the Pivot Assembly are strong enough to support the weight of the pipe support. If the end of the pipe support does not rest in the keeper plate, make sure that the Pivot Assembly weldment is in the correct position and then align the pipe guide halves with the center of the drill string. If the weldment is correct, it is recommended to move the keeper plate to align with the new pipe support installation.

Installing the Pipe Support

Precondition

  • The machine is OFF.

  • All controls are in the OFF or neutral position.

  • Tracks are blocked, as applicable.

  1. 1.
    Attach safety locks and tags to the machine in accordance with the site-specific procedures.

    NOTE

    Refer to Safety Locks and Tags Minimum Requirements in the Maintenance manual.

  2. 2.
    Make sure that the machine is in a zero-energy state.
  3. 3.

    WARNING

    Equipment Interference Hazard

    Can cause severe injury or property damage.

    1. Make sure that no overhanging power lines or any other obstructions are present that can interfere with the use of a boom truck crane or mobile crane.

    WARNING

    Crushing Hazard

    Can cause personal injury.

    1. Lifting equipment must be adequately sized, have the correct lifting capacity, and be in good condition.

    2. Be careful when you lift heavy components.

    Attach the pipe support arm to the crane with an approved lifting device (Figure 4).
  4. 4.
    Lift the pipe support arm into position. Insert the new pivot pin and swing cylinder pin.
  5. 5.
    Connect the grease hoses and the hydraulic hoses to the pipe support.
  6. 6.
    Install the proximity sensors (Figure 12, item B) and the wiring (item A).
    Figure 12

    A

    Wiring

    B

    Proximity sensors

Setting the Pipe Support to the Drill Center

Precondition

  • The machine is OFF.

  • All controls are in the OFF or neutral position.

  • Tracks are blocked, as applicable.

  1. 1.
    Attach safety locks and tags to the machine in accordance with the site-specific procedures.

    NOTE

    Refer to Safety Locks and Tags Minimum Requirements in the Maintenance manual.

  2. 2.
    Make sure that the machine is in a zero-energy state.
  3. 3.
    Put the pipe support guides so that the center aligns with the mast center. Use the adjustment cap screws on the end of the pipe support to do the alignment (Figure 13).
    Figure 13

    A

    Swing cylinder clevis

    B

    Drill center

    C

    Adjustment

  4. 4.
    With the pipe support set to drill center in the closed position, position the swing cylinder clevis to 510 millimeters (21 inch) on the center (Figure 13).
  5. 5.
    Make sure that the swing cylinder rod extends at least 15 millimeters (19/32 inch into the clevis of the cylinder rod end.
  6. 6.

    WARNING

    Risk of Explosion

    Can cause personal injury or death.

    1. Before you weld, flame cut, or grind on the machine, clean the machine and the surrounding area from dust and other flammable substances with a nonflammable cleaner.

    2. Make sure that the premises are adequately ventilated.

    WARNING

    Risk of Personal Injury

    The electric arc includes visible, ultraviolet, and infrared light. Failure to follow these instructions can cause serious personal injury.

    1. Put on protective clothing and equipment during all welding operations.

    2. Use safety goggles to protect the eyes from heat, glare, and flying fragments of hot metals during all oxyacetylene welding and cutting processes.

    3. Use safety goggles and a hard hat that has an applicable filter glass to protect against the intense ultraviolet and infrared rays during all electric welding processes.

    4. When others are near the electric welding processes, the area must be screened to prevent the arc from being seen either directly or by reflection from glass or metal.

    Weld the swing cylinder clevis (Figure 14, item A), 10 millimeter (3/8-inch) fillet on all of the four sides (Figure 14). Do all of the welding in accordance with the AWS D1.1 procedure.
    Figure 14

    A

    Clevis

  7. 7.
    After the welding is complete, clean and paint the surface.
  8. 8.

    WARNING

    High Pressure

    Can cause injury

    1. After you repair or replace the cylinders, release all of the air out of each end of the cylinder before you connect it to the machine.

    Install the cylinder into the clevis and insert the new pins.

    NOTE

    The cylinder end pin is different from the rod end pin.

  9. 9.
    Insert a new linch pin. Safety the linch pin to the cylinder end pin with wire (Figure 15).
    Figure 15

Fitting the Pipe Guides

Precondition

  • The machine is OFF.

  • All controls are in the OFF or neutral position.

  • Tracks are blocked, as applicable.

  1. 1.
    Attach safety locks and tags to the machine in accordance with the site-specific procedures.

    NOTE

    Refer to Safety Locks and Tags Minimum Requirements in the Maintenance manual.

  2. 2.
    Make sure that the machine is in a zero-energy state.
  3. 3.
    Make sure that there is sufficient weld on the guide mounting plate (Figure 16, item A) before installation.
    Figure 16

    A

    Guide mount plates

  4. 4.
    Insert cap screws with nuts (Figure 17, item A) to secure the guide plates into the pipe support arm.

    NOTE

    The nut side must be facing down (Figure 17).

    Figure 17

    A

    Cap screw with nut

  5. 5.
    Torque the cap screws to 277 Newton meters (205 foot-pounds) dry, 214 Newton meters (158 foot-pounds) lubricated.

    NOTE

    If the split pins are to be used on the castle nuts, bend the pin slightly to prevent the pin from falling out. The pins may need to be removed if guide adjustment is necessary.

Setting the RCS Controls

WARNING

Energized Machine

Can cause serious injury.

  1. The machine must be fully energized and the engine/motor must be operating to complete this procedure.

  2. Be careful around moving parts and pinch points.

  1. 1.
    Inform the supervisor, lead hand, and all other persons concerned of the intent to restart the machine for testing purposes.

    NOTE

    Make sure that all personnel and bystanders are clear of the machine before start-up.

  2. 2.
    Remove the safety locks and tags from the machine in accordance with the site-specific procedures.

    NOTE

    Refer to Safety Locks and Tags Minimum Requirements in the Maintenance manual.

  3. 3.
    Start the machine.
  4. 4.
    Open the M5.3.4.2 RCS screen (Figure 18) to see the pipe support settings.

    NOTE

    Figure 17 shows typical settings and is only an example.

    Figure 18

    NOTE

    Pipe support speed is controlled indirectly by the percentage adjustments. If the percentage is too low, the pipe support does not move. If the percentage is too high, the pipe support closes fast and slams into the mast.

  5. 5.

    NOTICE

    Pipe Support Damage

    Deviating from the measurements of the interlock positions can cause the rotary head to contact and damage the pipe support.

    1. Always maintain the measurement of the interlock positions. The interlock positions are critical.

    Open the M5.3.5 screen (Figure 19) to see the rotary head interlock positions.
    Figure 19

    NOTE

    Maintain the following rotary head interlock positions:

    • Head at open pipe support position = 6 meter (17 feet)

    • Head at close pipe support position = 13 meter (41 feet)

  6. 6.
    Do the following steps to examine the rotary head calibration:
    1. Open the M5.3.6 screen (Figure 20) to see the middle calibration point value.

      NOTE

      In Figure 19, the value is set to 13 meters (42 feet). This value can vary between machines.

      Figure 20
    2. Open the M5.3.5 screen to monitor the head position (Figure 21).
      Figure 21
    3. Energize the feed system and move the rotary head down the mast. Make sure that the pipe support is in the open position.

      NOTE

      As the rotary head moves down the mast, the Head position value increases.

    4. As the rotary head gets close to the middle calibration point, monitor the Head position value.
  7. 7.
    Stop the machine.