Assembling swiveling front part
Required tools
Opening plier
Open-end spanner
Hook wrench
For the parts that use regular indexer:
Remove the locking washer from the front part.
Slide the vacuum attachment onto the front part.
Attach the locking washer back to the groove on the front part.

For the parts that use HD indexer:
Slide the vacuum attachment onto the front part.
Attach the extension to the front part through thread connection.
