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Motor Unit Assembly Parts
Models 53903DM
53905DM
6
7
5
(Down) LIMIT SWITCH
Brown Contact ASSEMBLY
Wire _
Drive _b-._ ................ _t / Wire
Center Limit (Up) L,'pPJ Yellow
Contact Contact Wire
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1 41A5615 Chain Spreader 12 Cover
2 Gearand sprocket assembly 41A5525-37 Model 53903DM
Completewith: Spring washer, thrust washer, 41A5594 Model 53905DM
retaining ring, bearing plate, roll pins (2), 13 41A2818 Limit switch drive & retainer
14 Limit switch assembly
drive gear and worm gear, helical gear
w/retainer and grease 41D3452 Model 53903DM
41C4220A Model 53903DM 41D3452-2 Model 53905DM
41A5585 Model 53905DM 15 41A2822-1 Interrupter cup
3 41A2817 Drive/worm gear kit w/grease, roll pins (2) 16 41C4398A RPM sensor assembly
4 41 B4245 Line cord 17 Receiverlogic board assembly
5 End panelsw/all labels Complete with: Logic board, end panel
41A5484-2 Model 53903DM w/all labels, light socket
41A5484-3 Model 53905DM 41AC150-2M Model 53903DM
6 Light socket 41AC175 Model 53905DM
175B88 Model 53903DM 18 High voltage wire harness
4A1344 Model 53905DM 41C5497 Model 53903DM
7 108D77 Lens 41C5588 Model 53905DM
8 30B532 Capacitor- 1/2 HP Low voltage wire harness
Model 53903DM 41C5498 Model 53903DM
9 12A373 Capacitor Bracket 41C5587 Model 53905DM
Model 53903DM ONLY 19 41D178-1 Endpanel w/all labels
10 41A3150 Terminal block w/screws NOTSHOWN
11 Universal replacement motor 30B620 Capacitor - 56uF - 3/4 HP
& bracket assembly Model 53905DM
Completewith: Motor, worm, 30B619 Capacitor - 40uF - 3/4 HP
bracket, bearing assembly, RPM sensor Model 53905DM
41D3058 Model 53903DM 41A2826 Motor shaft bearing kit
41D5563 Model 53905DM 41A2825 Opener assembly hardware kit (includes screws
not designated by a number in illustration)
39
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