Brother PT-1090 Service Manual page 54

(5) Set the bottom cover to the upper cover, and hang the three hooks of the upper
cover on the bottom cover.
(6) Secure the bottom cover to the upper cover with the seven screws.
(7) Set the cutter case ASSY to the shaft of the bottom cover, and hang the hook of
the cutter case ASSY on the shaft, and then set the board to the rib of the bottom
cover, and hang the hook of the board on the rib.
Board
Hook
Cutter case ASSY
Figure 3.1-32 Assembling the Bottom Cover and the Upper Cover, and installing
the Board and the Cutter Case ASSY
Screws
Rib
Upper cover
Shaft
III - 32
Screws
Hook
Bottom cover
Hook
Hook