2018 CAT 325FL , Online Owner's Manual , TRACK SHOES (PADS) CONDITION: 70 %, UNDERCARRIAGE IDLERS: 70 %, UNDERCARRIAGE SPROCKETS: 70 %, UNDERCARRIAGE TRACK BUSHINGS: 70 %, UNDERCARRIAGE TRACK LINKS: 70 %, UNDERCARRIAGE TRACK ROLLERS: 70 %,