{"nhtsa_id":45896,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1996-04-25","date":"1995-08-01","document_id":"HEI129","mfr_campaign":null,"replaces":null,"component":"STRUCTURE","mfr_system":null,"summary":"ALL HALF PACK BODIES ARE NOW EQUIPPED WITH A PORT RELIEF VALVE WHICH LIMITS THE ARM CYLINDER BASE END PRESSURE TO 1100 PSI. BY APPLICATION OF THIS NEW PORT RELIEF , SHOCK LOADING OF THE ARMS, CYLINDERS AND BODY STRUCTURE HAVE BEEN REDUCED DRAMATICALLY. *SD","document":null,"url":"https://open.wenmarpro.com/bulletins/45896","components":[{"id":"structure-body","name":"Body and frame","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HEIL","model":"HEIL","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":[]}