{"nhtsa_id":632511,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-07-18","date":"2002-03-12","document_id":"2820","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, AIR:SLACK ADJUSTERS","mfr_system":null,"summary":"SUBJECT REGARDING AUTOMATIC SLACK ADJUSTER PREVENTATIVE MAINTENANCE SCHEDULE FOR 102D / DL / D4000 / D4500 SERIES COACHES. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/632511","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":[],"topics":["maintenance"],"vehicles":[{"make":"MCI","model":"MCI","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}