Motor Unit Assembly Parts - Chamberlain LiftMaster Professional Security+ 3245CM Owner's Manual

1/3 and 1/2 hp garage door opener for residential use only
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Motor Unit Assembly Parts

6
7
8
12
KEY
PART
NO.
NO.
1
31D380
2
41C4220A Gear and sprocket assembly
3
41A2817
4
41B4245
5
41A5484-1 End panel w/all labels
6
4A1344
7
108D79
8
30B532
30B533
9
12A373
10
41A3150
11
41D3058
3
5
11
13
14
9
DESCRIPTION
Sprocket cover
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
Light socket
Lens
Capacitor - 1/2 HP
Capacitor - 1/3 HP
Capacitor bracket
Terminal block w/screws
Universal replacement motor &
bracket assembly
Complete with: Motor, worm,
bracket, bearing assembly,
RPM sensor
1
18
4
2
17
10
16
15
(Down)
Brown
Contact
Wire
DN
Drive
Gear
Center Limit
Contact
KEY
PART
NO.
NO.
12
41A5525-1
13
41A2818
14
41D3452
15
41A2822-1
16
41C4398A
17
41AC050-1M Receiver logic board.
18
41C5498
41C5497
19
41D180-1
41A2826
41A2825
34
19
LIMIT SWITCH ASSY.
Grey
Wire
UP
(Up)
Yellow
Contact
Wire
DESCRIPTION
Cover
Limit switch drive & retainer
Limit switch assembly
Interrupter cup assembly
RPM sensor assembly
Complete with: Logic board,
end panel w/all labels
Low voltage wire harness.
High 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)

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Liftmaster professional security+ 3255-2cm

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