Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
SIL-3143
Altec has learned that a 12-volt Airtronics relay installed in the PDM could have been manufactured to an insufficient threshold on certain units built from December 2004 to October 2022. This can cause the relay to overheat and fail, causing the accessory lights to stop working.
SIL 727
SIL 727 notified unit owners that Altec has discovered that a placard was installed on some cranes which has the incorrect torque for bolts used to attach the rotation bearing. This placard has torque values that do not agree with the values in the maintenance manual. This difference can cause rotation bearing fasteners to be insufficiently checked during the periodic torque inspections, possibly leading to accelerated bolt fatigue. Altec requires that the affected units be inspected for the correct rotation fastener torque placard.
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.