Lift tilted sideways.Outgoing shaft could slip in the last gear in the gearbox.Investigation showed that where normally the pinion is pushed on the shaft, creating dents and a form fit, this was not the case in this gearbox.Most probably; therefore, the tolerances of the inner hole in the last gear were out of specification.Drawings are owned by (b)(4); supplier of the particular faulty gearbox.We requested feedback from (b)(4) multiple times regarding root cause analysis but so far handicare has received none.
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