Please refer to "cable assembly procedures" in HR25A series catalog.
Assembling jig for HR25A-9J-12S is HR25-9P-T01
As fixture is not available, some parts of HR25-9P-12P are used as substitute of fixture.
The cord pipe unit of HR25-9P-12P is screwed to the P-shell unit of HR25-9P-12P
and the spanner hook portion of the cord pipe is pinched with a vice.
Then it becomes a substitute of fixture.

Because the parts used as jigs may deform, please don't to use the used parts for selling.