connection support arm connection support arm adjusting balancer assy lead rail end plate lead rail end plate lock assy lock assy hand crank clips foot + rivet plastic bottom mounting bracket female hinge support arm right hand support arm left hand support arm inside lead rail outside lead rail hand crank upper crank pin coupling funnel (v.92) gliding angle lead rail connection lead rail connection lead rail tension rafter right hand spring arm left hand spring arm left hand spring arm support roller tube roller tube assy gear assy + coupling funnel end plate assy + lock left hand side cap spring arm support right hand side cap assy end plate assy back housing cover housing adapter set electronic control unit 5500 12V motor assy 5500 end cap set 12V motor 5500 end cap set 12V motor 5500 connection pieces tension rafter logo plate planetary assy