Altec has learned that the engine on certain AT35/37/40G and AT37/41/48 ME/PE aerial devices built from...
Altec technical service bulletin SIL 848 for 2020-2021 Altec Aerial Device Jems Hybrid.
- Bulletin number
- SIL 848
- Component
- Engine and engine cooling
- Summary
- Altec has learned that the engine on certain AT35/37/40G and AT37/41/48 ME/PE aerial devices built from August 2020 to August 2021 on Ford F-450/F550/F-600 gas engine chassis equipped with a JEMS S/SE hybrid system could not enter idle mitigation system (IMS) engine shut down properly when the Jobsite Energy Management System (JEMS) is actuated at a cold ambient temperature with a cold engine block. When shutdown is attempted, the engine will stutter but will remain running. If this happens five times in a row, it will cause the JEMS service light to turn on and the JEMS to become inactive. To resolve this issue, the base idle setting for IMS shutdown must be updated by Altec.
Vehicles covered
- Altec Aerial Device Jems Hybrid 2020-2021 20202021
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