At the time of initial design Promax International Equipment Ltd engineers will have determined the correct specification of the plant to provide the required product and throughput. This specification will have been determined through consultation with a representative of the customer where process variables such as throughput, material type, working environment etc, will have been determined. At the time of commissioning, the plant will be set and verified as providing the required throughput etc. If, however, at any time in the future the customer wishes to change any settings on the plant or the parameters in which the plant is operating i.e. the material being processed, they must first consult Promax International Equipment Ltd. Written authorisation must be received from Promax International Equipment Ltd before any changes take place.