Based on the example of 6Dg type diesel locomotives. the paper presents a new maintenance strategy concerning periodical checks at the P1 maintenance level. Currently. such locomotives are sent off to service points every 102 hours of operation or every 14 days for a P1 level check. https://www.roneverhart.com/Cho-Pat-Tennis-Elbow-Strap-Tennis-Elbow-Strap-Small-5623/