Motor Unit Assembly Parts
6
7
KEY
PART
NO.
NO.
1
41A5615
2
41C4220A
3
41A2817
4
41B4245
5
41A5484-2
6
4A1344
7
108D77
8
30B532
9
12A373
10
41A3150
11
41D3058
3
12
DESCRIPTION
Chain Spreader
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
Drive/worm gear kit w/grease,
roll pins (2)
Line cord
End panels w/all labels
Light socket
Lens
Capacitor - 1/2 HP
Capacitor bracket
Terminal block w/screws
Universal replacement motor &
bracket assembly.
Complete with: Motor, worm,
bracket, bearing assembly, RPM
sensor
1
2
4
17
10
11
8
9
13
Brown
Wire
Drive
Gear
Center Limit
Contact
KEY
PART
NO.
NO.
12
41A5525-26
41D503-2
13
41A2818
14
41D3452
15
41A2822-1
16
41C4398A
17
41AC150-2M
18
41C5499
41C5512
19
41D178-1
41A2826
41A5258-9
38
18
6
19
(Down)
LIMIT SWITCH ASSEMBLY
Contact
Grey
Wire
(Up)
Yellow
Contact
Wire
DESCRIPTION
Cover (Model 139.18458DM)
Cover (Model 139.18459DM)
Limit switch drive & retainer
Limit switch assembly
Interrupter cup
RPM sensor assembly
Receiver logic board assembly.
Complete with: Logic board, end
panel w/all labels, light socket
High voltage wire harness
Low voltage wire harness
End panel w/all labels
NOT SHOWN
Motor shaft bearing kit
Opener assembly hardware kit
(includes screws not designated by
a number in illustration)
7