Key legal question
Whether the pension fund was bound by the IV authority's finding that the workload reduction was health-related.
Extracted holding
No binding effect existed because the IV disability pension was based on a late application and the fund therefore was not bound by the IV findings on the cause and timing of incapacity.
Extracted reasoning
When the IV authority fixes incapacity at a date more than six months before the claim, the pension institution is not bound by those findings; it had to determine independently why the workload was reduced.