Pfaff Cover Style Owner's Manual page 3

Parts of the coverstyle
1 Upper needle-thread tension
2 Upper needle-thread tension
3 Carry handle
4 Thread tension/upper looper thread
5 Thread tension/lower looper thread
6 Thread tension/two-thread chainstitch looper/cover stitch looper
7 Looper cover
8 Blade guard
9 Looper disengaging lever
10 Standard presser foot
11 Needle plate
12 Swivel plate
13 Adjusting knob for seam width
14 Seam width viewing window
15 Needle holder
16 Sewing light cover
17 Adjusting knob for presser foot pressure
18 Upper overedge looper
19 Lower overedge looper
20 Two-thread chainstitch looper
21 Threading aid for the two-thread chainstitch looper/
cover stitch looper
22 Swiveling stitch width latch
23 Movable upper blade
24 Fixed lower blade
25 Clamp spring for serging thread chains
26 Needle plate disengaging lever
27 Handwheel for lowering the upper blade