LiftMaster 3255 3255 Manual - Page 34
Motor Unit Assembly Parts - 1 2 hp
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Motor Unit Assembly Parts 3 6 1 4 18 2 17 5 7 8 11 13 9 14 12 10 16 19 15 Brown Wire (Down) Contact LIMIT SWITCH ASSY. UP DN Drive Gear Center Limit Contact (Up) Contact Grey Wire Yellow Wire KEY PART NO. NO. 1 31D380 2 41C4220A 3 41A2817 4 41B4245 5 41A5484-1 6 4A1344 7 108D79 8 30B532 30B533 9 12A373 10 41A3150 11 41D3058 DESCRIPTION Sprocket cover Gear and sprocket assembly Complete with: Spring washer, thrust washer, retaining ring, bearing plate, roll pins (2), drive gear and worm gear, helical gear with retainer and grease Drive/worm gear kit with grease, roll pins (2) Line cord End panel with all labels Light socket Lens Capacitor - 1/2 HP Capacitor - 1/3 HP Capacitor bracket Terminal block with screws Universal replacement motor and bracket assembly Complete with: Motor, worm, bracket, bearing assembly and RPM sensor KEY PART NO. NO. 12 41A5525-24 13 41A2818 14 41D3452 15 41A2822-1 16 41C4398A 17 41AC050-1 18 41C5498 41C5497 19 41D181 41A2826 41A2825 DESCRIPTION Cover Limit switch drive and retainer Limit switch assembly Interrupter cup assembly RPM sensor assembly Receiver logic board assy. Complete with: Logic board and end panel with all labels Low voltage wire harness assy. High voltage wire harness assy. End panel with all labels NOT SHOWN Motor shaft bearing kit Opener assembly hardware kit (includes screws not designated by a number in illustration) 34