International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Open Access | Fully Refereed | Peer Reviewed

ISSN: 2319-7064


Downloads: 171

Research Paper | Mining | Zambia | Volume 9 Issue 9, September 2020


A Critical Investigation into the Real Cause of the Low Heavy Mining Equipment Reliability: A Case of AZ Open Pit Mine, West Africa

Dr. Dyson Galatia


Abstract: Mining is heavily dependent on large and expensive equipment, therefore, it is important to efficiently manage the performance of the capital intensive equipment to remain productive. The performance of the major mining equipment (Dump Trucks and Excavators) at AZ Mine, not the real name, was continuously below budge from 2019 to 2020, a condition that adversely affected productivity of the mine. The mine management attributed the low equipment reliability to poor supervision in the Heavy Mining Equipment (HME) department and extended lead-time of maintenance spares, however, this assumption was not supported by any formal investigation or research. It is for this reason that the study was conducted to investigate the actual cause of the low reliability of the HME at the mine. Reliability and Maintainability characteristics; Meantime Between Failure (MTBF) and Meantime To Repair (MTTR) as well as failure mode patterns of the equipment are studied. Data collection is through document review from planning office, participant observation and through views of key informants (subject matter experts). Tables and graphs are used to present data trends and their characteristics. The study has therefore, concluded that, the major contributing factors to the low equipment reliability of the HME at the mine are lack of Heavy Equipment Repair skills to work on the high technology equipment. The Local Technicians, though constituted the largest number compared with the skilled Expatriates, were not adequately trained and the onsite training provided was not sufficient. Further, there was no established spares management plan to assist in prioritising and forecasting parts acquisition. The maintenance infrastructure did not support the HME operations and the department run without a formalised maintenance strategy. To summarise the factors responsible for downtime, a framework to show the main causes of the low equipment reliability with intervening variables was developed. Final


Keywords: Reliability, Meantime To Repair MTTR, Meantime Between Failure MTBF, Availability, Maintainability


Edition: Volume 9 Issue 9, September 2020,


Pages: 58 - 72


How to Cite this Article?

Dr. Dyson Galatia, "A Critical Investigation into the Real Cause of the Low Heavy Mining Equipment Reliability: A Case of AZ Open Pit Mine, West Africa", International Journal of Science and Research (IJSR), https://www.ijsr.net/get_abstract.php?paper_id=SR20824135451, Volume 9 Issue 9, September 2020, 58 - 72

How to Share this Article?

Enter Your Email Address


Similar Articles with Keyword 'Reliability'

Downloads: 0

Research Paper, Mining, Zambia, Volume 10 Issue 8, August 2021

Pages: 1103 - 1118

Factors Affecting Maintenance Organization and Nationalization of Maintenance Roles (Feedback): A Case of a Mining Share Company

Dr. Dyson Galatia

Share this Article

Downloads: 33

Research Paper, Mining, Zambia, Volume 10 Issue 3, March 2021

Pages: 1366 - 1376

Mining Earth Moving Equipment Major Component Change-Out Approach: A Broader Perspective

Dr. Dyson Galatia

Share this Article

Similar Articles with Keyword 'Availability'

Downloads: 0

Research Paper, Mining, Zambia, Volume 10 Issue 8, August 2021

Pages: 1103 - 1118

Factors Affecting Maintenance Organization and Nationalization of Maintenance Roles (Feedback): A Case of a Mining Share Company

Dr. Dyson Galatia

Share this Article

Downloads: 33

Research Paper, Mining, Zambia, Volume 10 Issue 3, March 2021

Pages: 1366 - 1376

Mining Earth Moving Equipment Major Component Change-Out Approach: A Broader Perspective

Dr. Dyson Galatia

Share this Article

Similar Articles with Keyword 'Maintainability'

Downloads: 153

Research Paper, Mining, Zambia, Volume 9 Issue 7, July 2020

Pages: 279 - 294

Investing the Cause of Premature Tyre Failure of Open Pit Mine Dump Trucks: A Case of ABC Mine, Northeast Africa

Dr. Dyson Galatia PhD

Share this Article

Downloads: 209

Research Paper, Mining, Zambia, Volume 9 Issue 6, June 2020

Pages: 206 - 219

Exploring Factors that Affect Reliability of Open Pit Heavy Mining Dump Trucks: A Case of Bisha Mining Share Company, Eritrea

Dr. Dyson Galatia PhD

Share this Article
Top