View of completed assembly, including cover.

View of:

Stationary disc, Friction disc, Pivot Arm shaft disc assembled (as above)
Plastic Slip disc
Pneumatic piston
Pneumatic cylinder/housing

View of:

Stationary disc
Friction disc
Pivot Arm shaft disc

View of:

Rear of drum with shaft seals (light press fit)
Seal retaining plate (in hand)
Pivot arm

View of:

Rear of drum, seal retaining plate and pivot arm (bolted)
Locating ring (in hand)
Gearbox and motor assembly

View of completed assembly.