Underground 4 WK Drill Bay Mechanical Inspection (DN:10000413773)

Drill Bay Inspection SWI

The purpose of this SWI is to provide sufficient procedure and information for performing planned online mechanical inspections on the Underground drill bays. This procedure applies to the Underground drill bays. Approximately 1 hour. File Document name: 10000413773
Please see attached the SWI for Underground Drill Bay Inspection
Please read above attached the SWI for Underground, Drill Bay Mechanical Inspection
Conducted on
Inspected by
Inspected by
Work Order number
Location
Qualification: Mechanics - Trained, competent and authorized for the task.

HEALTH, SAFETY & ENVIRONMENTAL CONSIDERATIONS

Contact with Electricity

Contact with Electricity
Please follow below CRM controls
• Electrical Isolation and Lockout
• Verification of Zero Energy

Ergonomics

Maintain correct body posture while working on the equipment

Pinch points

Manual lifting and handling
Pinching fingers between equipment
Please follow below the controls
Maintain good communication

Slip, trip, and falls

• A high standard of housekeeping shall be always maintained to prevent trip hazards.
• Be wary while walking around the pumps, motors, and other live equipment as the area might be slippery.
Use appropriate PPE

Work instructions

1. PRE-START PREPARATIONS & ISOLATION (MUST FOLLOW C1 ISOLATION PROCESS)

1.1 Identify and control the hazards using the TRACK
1.2 Prepare material and tools: Ensure that you have the necessary equipment/tools available at the site: - Required Materials - Required PPE - Maintain good housekeeping Proper Inspection of all tools and equipment
1.3 Inform the maintenance supervisor or team lead of the scope of work and that work about to start.

2. BAY VENTILATION AND LIGHTS CHECK

2.1 Begin your search on the right side of the drill bay, as indicated to locate the Light/Fan switch
2.2 Step Instruction
2.2 Functional Test: Activate the switch to turn on the ventilation fan. Observe the airflow produced by the fan. It should be strong and consistent. Light/Fan Label: Verify that the label on the switch or control panel is clear, easy to read.
2.3 Step Instruction
2.3 Ensure that the "Establish Ventilation Before Entry" sign is clearly visible, legible, and in good condition.
2.4 Step Instruction
2.4 Verify lights are fully illuminated.

3. BAY GROUND SUPPORT INSPECTION

3.1 Stability: Accepted Conditions: • No visible signs of loose rocks, cracks, or bulges. • Rock formation appears stable and solid. Unaccepted Conditions: • Loose rocks, boulders, or debris are present. • Visible cracks or fissures in the rock. • Bulging or swelling of the rock formation.
Water: Make sure that: • No standing water or puddles. • No visible leaks or excessive moisture.

4. BAY AREA INSPECTION

4.1 Is general housekeeping in the workplace in good condition?
3.2 Are entrance, walkways, travel ways, and floor free from obstruction and slip and trip hazard4
4.3 Verify required area clearance. Safety Signage: • Confirm all required safety signs are present, legible, and undamaged. - Electrical hazard signs - Highest Voltage Potential sign - Fire extinguisher sign

5. FIRE EXTINGUSHER INSPECTION

5.1 Step Instruction
5.1 Check if Fire Extinguisher is in place and firmly mounted.
5.2 Step Instruction
5.2 Check Pressure needle is in green region.
5.3 Step Instruction
5.3 Check the Inspection tags.
Fire Extinguisher Tag Inspected Date

6. WELL PUMP FUNCTIONALITY (480 VOLT CONTROL PANEL WITH DISPLAY)

6.1 Step Instruction
6.1 In case the pumps control panel has a display, Follow this section, if not follow section 6. Locate the control panels or switches for all well pumps. Turn Off All Well Pumps. Turn off each pump individually until all are completely stopped.
6.2 Step Instruction
6.2 Set Switch Pointer to "AUTO": • Find the switch pointer on the control panel for each well pump. • Set the pointer to the "AUTO" position. This will enable the pump.
6.3 Step Instruction
6.3 Monitor Display: • Observe the display of each well pump on “Auto” mode, wait until you see the "underpower fault" message appear on the display. • While the pump is on, record the time it took for each pump to display "underpower fault" message, using with your stopwatch or cell phone timer. ATTENTION: If the "underpower fault" message does not appear within 10 minutes, stop the timer and note that it did not occur within the specified time.
6.3.1 Pump ID Recorded Time Pump 1
6.3.2 Pump ID Recorded Time Pump 2
6.3.3 Pump ID Recorded Time Pump 3
6.3.4 Pump ID Recorded Time Pump 4
6.3.5 Pump ID Recorded Time Pump 5
6.3.6 Pump ID Recorded Time Pump 6
6.4 Step Instruction
6.4 Verify Water Flow: • During testing the pump functionality, ensure that the well pump is effectively pumping water into the sump by visually checking for water flow.
6.5 Repeat for Other Pumps: • Follow the same procedure for each remaining well pump.

7. WELL PUMP FUNCTIONALITY (240 VOLTS – CONTROL PANEL WITHOUT DISPLAY)

7.1 Locate the control panels or switches for all well pumps. Turn Off All Well Pumps. • Turn off each pump individually until all are completely stopped.
7.2 Step Instruction
7.2 Set Switch Pointer to "AUTO": • Find the switch pointer on the control panel for each well pump. • Set the pointer to the "AUTO" position. This will enable the pump.
7.3 Step Instruction
7.3 Verify Water Flow: • During testing the pump functionality, ensure that the well pump is effectively pumping water into the sump by visually checking for water flow.
7.3.1 Pump ID Recorded Time Pump 1
7.3.2 Pump ID Recorded Time Pump 2
7.3.3 Pump ID Recorded Time Pump 3
7.3.4 Pump ID Recorded Time Pump 4
7.3.5 Pump ID Recorded Time Pump 5
7.4 Repeat for Other Pumps: • Follow the same procedure for each remaining well pump.

8. WELL PUMP VISUAL INSPECTION

8.1 Step Instruction
8.1 Ensure that the Well Pump has a Pressure Gauge Mounted to the Pump Head.
8.2 Step Instruction
8.2 Ensure the gauge is easily accessible and not obstructed by debris or other objects.
8.3 Check for any physical damage, such as cracks, dents, or corrosion, broken glass.
8.4 Verify that the gauge is securely mounted to the pump head.
8.5 Step Instruction
8.5 Well Pump Sign Inspection and Cleaning: • Check for clarity, damage, and buildup. • If necessary, gently clean the sign using a soft brush, mild detergent, and a clean cloth.
8.6 Step Instruction
8.6 Inspect the pump hoses for signs of buildup, and leaks.

9. FLOW MEASUREMENT OF HOLES

9.1 Step Instruction
9.1 Record flow reading on each hole and write them down in the table with the measured Flow in Gallon per minute (GPM).

10. DRILLING FLOW CONTROL MANIFOLD TESTING (A TYPE)

10.1 Step Instruction
10.1 Verify Closed Valves: Check Valve Positions, ensure that all top valves on the manifold are in the closed position. ATTENTION: If the drill bay’s drain lines are directly connected to the sump without connecting to the flow manifold, please start from Section 11.
10.2 Step Instruction
10.2 Procedure for Checking Blockages in Each Line (Gallons per Minute): Open Each Line: • Identify the two valves for each line: one leading to the discharge port and the other leading to the sump. • Open each line individually to check for blockages. Adjust Valves: • For each line, close the bottom valve (leading to the sump). • Open the top valve (leading to the discharge port) to allow flow. Measure Flow: • Position the 5 gallons calibrated bucket under the discharge port to collect the fluid. • Start the timer as soon as you open the top valve. • Allow the fluid to flow into the bucket for a set period (e.g., 1 minute). • After the time is up, close the top valve and stop the timer. Calculate Flow Rate: • Record the volume of fluid collected in the bucket (in gallons). • Use the formula to calculate flow rate: Flow Rate (GPM) = Volume Collected (gallons) / Time (Minutes). Record Data: • Document the flow rate for each line, along with any observations regarding blockages or issues. • Repeat steps 10.2 to 10.4 for each line to ensure all are checked.
10.3 Step Instruction
10.3 Check the blockage of the strainer valve: All the other top valves need to be opened Open the Strainer ball valve located in the button right of the drilling flow control manifold. If the flow is reduced, Clean the strainer. Replace the Strainer if needed.
10.4 Check for Blockages: If water flow through the discharge port is reduced or stopped, there may be a blockage in the valve or its associated piping.

11. DRILLING FLOW CONTROL MANIFOLD TESTING (B TYPE)

11.1 Step Instruction
11.1 Isolate Drain Lines: Close all ball valves on the drain lines, effectively blocking the flow from each line.
11.2 Open the first valve Monitor the discharge into the sump. Look for any signs of blockage, such as reduced flow or visible debris.
11.3 Close the first line: After completing the inspection of the first line, close its ball valve.
11.4 Open the next line: Proceed to the next drain line and repeat the process of opening, observing, and inspecting. Continue this procedure for all drain lines, ensuring that each one is thoroughly tested.

12. DRILLING FLOW CONTROL MANIFOLD EXTERNAL VISUAL INSPECTION

12.1 Step Instruction
12.1 Piping Inspection and Cleaning: • Visually inspect the manifold piping and connections for signs of damage, leakage, corrosion, or buildup. • Use a soft brush to gently remove any buildup from the tubes and connections. • Look for any signs of leakage around the joints and connections.
12.2 Step Instruction
12.2 Visually inspect the manifold body and valves for cracks, dents, build ups or other damage. Clean if needed using pressure washer or a Brush.
12.3 Step Instruction
12.3 Visually inspect the control manifold valve: • Check for any signs of damage, such as cracks, dents, or corrosion. • Inspect for leaks around the valve body and connections. • Verify that all seals and gaskets are intact and in good condition. • Verify open and close labels are visible.
12.4 Step Instruction
12.4 Safety Rope Inspection: If present: • Carefully inspect the safety ropes for any signs of wear, tear, cuts, or abrasions. • Verify that the ropes are securely attached to both the drain hoses and tubes. • Manually check the tension in the ropes.
12.5 Step Instruction
12.5 Check the drilling flow control manifold input and output hoses for: • Signs of cuts, tears, or leaks. • Verify that all connections between hoses and fittings are secure and free from corrosion. • Ensure that all screws and fasteners are in place and tight.
12.6 Visual Inspection of Manifold Structure: • Check for signs of corrosion on the manifold's metal. • Replace worn or corroded parts as needed. • Check overall condition
12.7 Step Instruction
12.7 Chains Inspection • Verify that the chains are securely attached to the hoses and the manifold. • Inspect the chains for wear, damage, or broken links.

13. SUMP PUMP INSPECTION

13.1 Step Instruction
13.1 Observe the pump to see if it is running, Listen for any unusual noises or vibrations.
13.2 Inspect the pump housing for any signs of damage, leaks, or corrosion.
13.3 Make sure the sump pump suction is not blocked. If needed remove the pump and clean it.

14. SUMP CLEAN

14.1 Carefully remove any solid debris (sediment, sludge, etc.) from the bottom of the sump if found.
14.2 Check the sump for any damage

15. TASK COMPLETION

15.1 Equipment Identification Install any identification tags that may have been removed during head set up. Cleanup area and discard of old parts properly. • Scrub oil or grease on floor. • Wash and squeegee floor. • Crush any canister filters. • Put oily waste in an oily waste dumpster. • Dump trash bins • Other
15.2 Replace Removed Items If any covers, identification tags, heat trace, insulation, grounding, grating, handrails or toe kicks were removed in the performance of this job, they must be reinstalled before the job is considered complete.
15.3 Clean any used specialty tools and return them to their specified location.
15.4 Report any defects to the supervisors and the planning team. Any repair done must also be recorded.
15.5 Is the task fully completed? Notify the DG supervisor that the Drill Bay inspection is completed.
15.6 Please make notes on the document if there are recommendations to improve the work or procedure.
ADDITIONAL COMMENTS:
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