{"nhtsa_id":10175596,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-05-27","date":"2020-03-30","document_id":"SIL 744","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT","mfr_system":null,"summary":"Service Information Letter 744 notified customers that the mounting hole for the return filter on the hydraulic reservoir was produced over-sized on the affected units. This can cause the O-ring between the return filter head and the reservoir to not seal properly which can result in potential water intrusion. Altec has designed an adapter plate and gasket to provide the correct hole diameter for the proper sealing of the O-ring. Order the Return Filter Seal and Plate Kit, part number 990875329, by calling 1-877-GO ALTEC (1-877-462-5832). Altec suggests that the kit be installed no later than the next regular maintenance interval or 90 days from the receipt of this SIL, whichever comes first. This repair","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10175596-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10175596-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10175596","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":["maintenance"],"vehicles":[{"make":"ALTEC","model":"DIGGER DERRICK","year_from":2017,"year_to":2019,"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":[]}