Cuff Adapter - ProTeam Sierra Backpack V6 giving the main top shell

giving the main top shell that protects the power head's drive and wiring

supplied complete in dark blue

swapping in a sound hose restores full pull from the inlet all the way to the tool

This genuine SEBO Swivel Neck Support (right hand) is the two-screw version built for the old-style 5320UL chassis found on X1

and once it cracks or a latch fails

Cuff Adapter - ProTeam Sierra Backpack V6 giving the main top shellThe Cuff Adapter for the ProTeam Sierra backpack vacuum is a replacement fitting compatible with ProTeam 1315. Fittings like this one keep the connection in the airflow path airtight, and an airtight connection is the whole game for a backpack machine that depends on every bit of suction reaching the tool. If you notice air leaking near the connection, reduced suction when using attachments, or visible cracks in the fitting itself, replacement is due.