949419. MAINTENANCE AND GUARANTEEThe RE72 controller does not require any periodical maintenance.In case of some incorrect operations:After the dispatch date and in the period stated in the guaranteecard:One should return the instrument to the Manufacturer’s Quality In-spection Dept. If the instrument has been used in compliance withthe instructions, we guarantee to repair it free of charge.The disassembling of the housing causes the cancellation of thegranted guarantee.After the guarantee period:One should turn over the instrument to repair it in a certified serviceworkshop.Our policy is one of continuous improvement and wereserve the right to make changes in design and speci-fications of any products as engineering advances ornecessity requires and revise the above specificationswithout notice.