Craftsman 139.18451D Manual De Usuario
Motor Unit Assembly Parts
38
DN
UP
Brown
Wire
Wire
(Down)
Contact
Contact
LIMIT SWITCH
ASSEMBLY
Grey
Wire
Wire
Yellow
Wire
Wire
(Up)
Contact
Contact
Center Limit
Contact
Contact
Drive
Gear
Gear
1
2
4
3
18
19
17
15
10
14
12
8
9
11
5
6
7
16
13
KEY
PART
NO.
NO.
DESCRIPTION
1
41A5615
Chain Spreader
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
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)
roll pins (2)
4
41B4245
Line cord
5
41A5484-5 End panels w/all labels
6
4A1344
Light socket
7
108D77
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
bracket assembly.’
Complete with: Motor, worm,
bracket, bearing assembly, RPM
sensor
KEY
PART
NO.
NO.
DESCRIPTION
12
41A5525-28 Cover
13
41A2818
Limit switch drive & retainer
14
41D3452
Limit switch assembly
15
41A2822-1
Interrupter cup assembly
16
41C4398A
RPM sensor assembly
17
41AC150-1
Receiver logic board assembly.
Complete with: Logic board,
end panel w/all labels, light
socket
Complete with: Logic board,
end panel w/all labels, light
socket
18
41C5497
High voltage wire harness
41C5498
Low voltage wire harness
19
41D179
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)
(includes screws not
designated by a number in
illustration)