{"nhtsa_id":635422,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-10-23","date":"2002-05-13","document_id":"02010","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT","mfr_system":null,"summary":"198747 REAR HYDRAULIC LOCK CONVERSION FOR ALL VEHICLES EQUIPPED WITH HR4000A HY-RAIL REAR GUIDE WHEEL EQUIPMENT. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/635422","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HARSCO","model":"HY-RAIL","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":[]}