Checklist

(Gruisfontein Engineering CC)

Conveyor Belt Arrestor (Patent No. 95/6363)

  1. Grade off all steel is checked before manufacturing starts.

  2. All steel is cut and checked for sizes according to drawings.

  3. Welding is checked on a continuous basis.

After Manufacturing:

  1. Machine is completely assembled.

  2. All sizes are checked according to drawing.

  3. Final measurements are taken for data pack.

  4. Machine is checked to be fully operational.

  5. machine is disassembled, and either painted or galvanized according to order.

  6. After galvanizing, checks are done on thickness and a SABS certificate is issued.

  7. Mine is notified of delivery date.

On Delivery:

  1. Every spare part is checked to be delivered according to delivery note. A detailed delivery note goes with every machine and is checked by Gruisfontein in loading and delivery at the mine.

    When complete the following documents go with every machine and also form part of the data pack that will be delivered to Hatch Africa:

  1. Installation instruction

  2. General Information

  3. Maintenance schedule

  4. Component description drawings

  5. Electrical diagram

  6. Certificate of Conformance of all spare parts not manufactured by Gruisfontein Engineering.

After Installation by Mine or Contractor:

  1. A representative of Gruisfontein Engineering or Remco Engineering makes an appointment with the R.E. or foreman for commissioning. A fitter and electrician must be available on day of commissioning.

  2. The fixation of the machine on the footwall is checked according to specifications. For specifications see 9 of Installation Instructions. The mine or contractor must issue a certificate or letter that the fixation was done according specifications as in 9 of the installation instructions since it is impossible to check after installation.

  3. All bolts and nuts are checked to be tight.

  4. The gap between the conveyor belt and the clamping beam is set so that no damage can occur when the belt is fully loaded and running.

  5. Electrical connections are checked to be according to drawing. A 4MM 3 core cable (reinforced) must connect the electricity between the friction switch and solenoid valve fixed with 2 20mm glands. The same size cable is being used to connect the power supply from the mains to the solenoid valve. Wiring must be done so that in case of a belt run-away the drive motors are stopped. A flashing light or siren can also be connected to serve as warning in case of a belt break. (Not supplied)

  6. Air pressure is checked to be sufficient to put the machine into operation See 19 of installation instructions for details.

  7. The gap between the arresting arm and the clamping beam is set to be according to specifications and thickness of the belt.

  8. The sensor roller is then turned in the run away direction of the belt to check if everything is operational. A belt breakage is simulated. The gap between the arresting arm and clamping beam as well as the position of the clamping arm in the down position is checked. For full detail see D3 - 4 off installation instructions.

  9. The machine is then reset to lift the arresting arm from the belt.

  10. No. 8 and 9 as above is repeated 5 times.

  11. A certificate is then issued stating that the machine is fully operational.

For your convenience we include a quality control plan which is being used in the factory.

Mr. H.J. du preez
M.D. Gruisfontein Engineering