for machine operation, thereby reduced the operational errors in Saudi Arabia. Bob [6] reported that wasted energy from poorly maintained compressed air systems cost US industry up to $3.2 billion annually. Alsyouf [7] showed in a case study that at least 14% of potential improvement in return on investment are directed to contribution of maintenance functions to lost profit, which is due to unplanned stoppages and bad quality caused by maintenance related problems. Blanchard [8] demonstrated that a large percentage (e.g. 70% for some systems) of total life cycle cost for a given system is attributed to operating and maintenance activities. De Groote [9] investigated two categories of ratios underudia Arabia) experts in implementation of TQM to distribution substation (S/S) maintenance [5] and investigated the developing training programs