The Actuator Arm should be shipped as an assembly - Arm, Screw and Washer, Cable Clip/Bracket and Securing Clip. Luckily I found the screw and washer clip sooner and put them aside not knowing what they belonged to. I was also careful not to lose the locking clip when removing the old washer from the vacuum. Therefore, handle the old actuator with care and make sure you have all the parts before ordering a new lever. The screw that secures the cable in place is a little fiddly. The screw has a T-20 Torx head and can be installed with Loc-Tite. There is a 15+ minute video on YouTube showing how to disassemble the vacuum and remove the drive arm. The tools required to get the job done are a medium-sized magnetized Phillips screwdriver (a non-magnetic one will do, but you may need needle-nosed pliers to remove the screw if you drop it), a small flat-head screwdriver to remove the lock clip. and a T20 Torx to remove the screw that secures the cable.