It is suggested that a short question statement be established as to how the temporary road spare parts inventory at the mine site is to be set up: the location is one of inconsistent consumption of connectors, replacement panels and conveyances, with the main exception that the stock is too low to work, and it is too high to occupy remote storage, who is the target and when it must be restored. This distinguishes between security issues that must be immediately isolated, control issues that can be maintained, and long-term issues that need to be redesigned.
Prior to the design of the programme, it is recommended to collect vehicle numbers, shifts, routes, events, maintenance hours, material consumption and operational records. When communicating with suppliers, photographs, size charts and the most unfavourable work conditions should be provided, rather than giving only one “mass tonnage”. More appropriate control actions for this topic are the establishment of upper and lower limits based on failure rates, key route lengths and replenishment cycles. For three types of products, the material number, the size of the finished product, the thickness difference, the surface texture, the connection or fixation, the working temperature, and the test conditions for the data. The usual specifications of 15, 20, 25 or 30 mm can only serve as the starting point for the request for quotations and cannot directly substitute for the engineering judgement.
Figure: Concordant consumption of connectors, replacement panels and handling tools
The product and field base should be used as a system for acceptance and acceptance when landing. Include roads, support and car liners in the same set of asset management. Once the laying, support or lining is completed, full contact, flatness, edge transition, tight state and interference with tyres, feet, lifting bodies are checked; the pilot operation begins with low-risk work and is gradually restored to the planned capacity after the site manager has confirmed that there are no anomalies.
The maintenance plan should be based on the frequency of changes in trends, repeated failures, unclosed worksheets and training deviations: each shift at a high-risk point was confirmed, regular spot checks were carried out in the general sector and additional special inspections were added after heavy rains, blasts, overloads or equipment anomalies. The stock was found to be too low and too high to take up remote storage, to record current vehicles and weather, and to avoid only replacing surface parts and losing root causes. Scavengers, porters and stacks should be prevented.
A distinction is to be drawn between product problems and changes in the use of borders. If the payload is increased, routed, the water content of the material changes or the temperature exceeds the original range, even if the three types of product are not manufacturing defective, they may no longer be suitable. These changes are recorded with the implementation of the upper and lower limits based on the failure rate, the length of critical routes and the replenishment cycle to determine adjustments to specifications, to extend coverage or to change operations.
It needs to be stressed that the three categories of products can only play a role in approved operating systems. Any overload, peri-side, underground hole, tilt lift or human exposure shall be first disposed of in accordance with the mine rules. This document is not a substitute for the plant manual and the comments of the registered engineering staff; procurement communications should provide a true picture of the most unfavourable conditions of work and avoid lowering the entry conditions to meet the quotations.
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