Technical Service Bulletin CSR 506 — 2020 ALTEC DIGGER DERRICK

Altec has been notified of a recall campaign by Daimler Trucks North America, LLC (DTNA). DTNA, on behalf of its Freightliner Trucks Division, has decided that a defect that relates to motor vehicle safety exists on specific model year 2018-2021 Freightliner 108SD, 114SD, and Business Class M2 vehicles manufactured May 24, 2017 through August 26, 2020 and equipped with a Detroit Diesel DD8 engine. On certain vehicles, the engine harness may contact and chafe at various locations around the air compressor and the frame rail. If the wires are damaged and short, under certain circumstances, the engine may stall without any prior warning, with no ability to restart, which may increase the risk of a crash. Engine harnesses will be inspected for damage, adequate clearance, and repaired as required. Owners of affected units - Please contact an authorized DTNA dealer to arrange to have the recall performed and to ensure that parts are available at the dealership. Instructions on how to request this service are included in the attached letter from DTNA.