Garage Door Opener Owner's Manual
Motor Unit Assembly Parts
34
2
10
8
13
14
15
5
19
3
9
4
16
12
7
18
11
17
6
6
7
DN
UP
Brown
Wire
(Down)
Contact
LIMIT SWITCH
ASSEMBLY
Grey
Wire
Yellow
Wire
(Up)
Contact
Center Limit
Contact
Drive
Gear
1
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  41A5484-1  End panel w/all labels 
 6  4A1344  Light socket
 7  108D79  Lens 
 8  30B532  Capacitor - 1/2 HP
 9  12A373  Capacitor bracket
10  41A3150  Terminal block w/screws
11 41D3058   Universal replacement motor & 
bracket assembly
 Complete with: Motor, worm, 
bracket, bearing assembly, 
RPM sensor
KEY PART 
NO. NO.  DESCRIPTION
12 41A5525-1 Cover 
13  41A2818  Limit switch drive & retainer
14  41D3452  Limit switch assembly
15  41A2822-1  Interrupter cup assembly
16 41C4398A   RPM sensor assembly 
17 41AC050-2M  Receiver logic board assembly 
Complete with: Logic board, 
end panel w/all labels, light 
socket
18  41C5498  Low voltage wire harness   
   asssembly   
  41C5497  High voltage wire harness   
  assembly. 
19  41D180-1  End panel w/all labels
  NOT SHOWN
  41A2826  Motor shaft bearing kit
 41A2825  Opener assembly hardware kit 
(includes screws not designated 
by a number in illustration)










