Sears 139.53960SRT Garage Door Opener User Manual


 
Motor Unit Assembly Parts
38
1
2
10
8
11
13
14
15
16
19
4
3
DN
UP
Brown
Wire
(Down)
Contact
LIMIT SWITCH
ASSEMBLY
Grey
Wire
Yellow
Wire
(Up)
Contact
Center Limit
Contact
Drive
Gear
9
20
16
7
5
6
12
17
18
3
KEY PART
NO. NO. DESCRIPTION
1 31D380 Sprocket cover
2 41C4220A Gear and sprocket assembly
Complete with: Spring washer,
Thrust washer, Retaining ring,
Bearing plate, Roll pins (2),
Drive gear and worm gear,
Helical gear w/retainer and
grease
3 41A2817 Drive/worm gear kit w/grease
Roll pins (2)
4 41B4245 Line cord
5 41A4352 End panel w/all labels
6 175B88 Light socket
7 108D58-2 Lens
8 30B363 Capacitor – 1/2 HP
9 12A373 Capacitor bracket
10 41A3150 Terminal block w/screws
KEY PART
NO. NO. DESCRIPTION
11 41D3058 Universal replacement motor &
bracket assembly
Complete with: Motor, worm,
bracket, bearing assembly,
RPM sensor
12 41D0328-4 Cover
13 41A2818 Helical gear & retainer w/grease
14 41D3452 Limit switch assembly
15 41C4398A RPM sensor assembly
16 41C4246 Wire harness assembly w/plug
17 41A2826 Shaft bearing kit
18 41A2822A Interrupter cup assembly
19 41A4315-7E Receiver logic board assembly
20 41A3691 End panel
NOT SHOWN
41A2825 Opener assembly hardware kit
(includes screws not designated
by a number in illustration).