Sears 139.53971SRT Garage Door Opener User Manual


 
Motor Unit Assembly Parts
I
19
18 17
16 15
(Down) LIMIT SWITCH
Brown Contact ASSEMBLY
Grey
Drive Wire
Gear
Contact Contact Wire
14
13
12
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1 31D380 Sprocket cover 11 41D3058 Universal replacement motor &
2 41C4220A Gear and sprocket assembly bracket assembly
Complete with: Spring washer, Complete with: Motor, worm,
Thrust washer, Retaining ring, bracket, bearing assembly,
Bearing plate, Roll pins (2), RPM sensor
Drive gear and worm gear, 12 41D0328-4 Cover
Helical gear w/retainer and 13 41A2818 Helical gear & retainer w/grease
grease 14 41D3452 Limit switch assembly
3 41A2817 Drive/worm gear kit w/grease
Roll pins (2) 15 41C4398A RPM sensor assembly
4 41B4245 Line cord 16 41C4246 Wire harness assembly w/plug
5 41A4352 End panel w/all labels 17 41A2826 Shaft bearing kit
6 175B88 Light socket 18 41A2822A Interrupter cup assembly
7 108D58-2 Lens 19 41A4315-7E Receiver logic board assembly
8 30B363 Capacitor - 1/2 HP 20 41A3691 End panel
9 12A373 Capacitor bracket NOT SHOWN
10 41A3150 Terminal block w/screws 41A2825 Opener assembly hardware kit
(includes screws not designated
by a number in illustration).
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