{"nhtsa_id":10197950,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-06-18","date":"2021-06-15","document_id":"SIL 811-818","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Altec has learned that certain AT35/37-G and AT40-G aerial devices built between February 2008 and January 2016 have power wiring for the 12V hydraulic oil reservoir heater which could be insufficient to carry the electrical current required to operate the heater. This could result in damage to the unit’s Power Distribution Module (PDM), causing the oil heater to stop operating. A kit has been developed to update the oil heater power wiring to carry the necessary current. Altec requires this kit to be installed on the affected units no later than the next preventive maintenance interval or 90 days from the receipt of this SIL, whichever comes first.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10197950-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10197950-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10197950","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"engine-oil","name":"Engine oil and lubrication","parent":"engine"}],"codes":[],"topics":["maintenance"],"vehicles":[{"make":"ALTEC","model":"AERIAL DEVICE","year_from":2015,"year_to":2016,"match":null,"vehicle_ids":[]},{"make":"ALTEC","model":"AT35-G","year_from":2008,"year_to":2013,"match":null,"vehicle_ids":[]},{"make":"ALTEC","model":"AT37-G","year_from":2008,"year_to":2013,"match":null,"vehicle_ids":[]},{"make":"ALTEC","model":"AT40-G","year_from":2010,"year_to":2014,"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":[]}