SIL 727
Service Bulletin/Repair Instructions
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.