Repair Parts
37
The Chamberlain Group, Inc.
Exploded View
Liftmaster Screw Drive
#114A1794
7/1/94 - 7/22/94
DN
UP
Brown
Wire
(Down)
Contact
LIMIT SWITCH ASSY.
Grey
Wire
Yellow
Wire
(Up)
Contact
Center Limit
Contact
Drive
Gear
2
1
4
5
7
13
17
16
9
12
8
14
15
10
6
11
3
8c
8a
8b
8d
Opener Assembly Parts
KEY
PART
NO.
NO.
DESCRIPTION
1
31D426
Drive shaft cover
2
41B4245
Line cord
3
30B363
Capacitor – 1/2 HP
4
12A373
Capacitor bracket
5
41A3150
Terminal block w/screws
6
41D4671
Limit switch assembly
7
12D554
Limit switch bracket
8
41D4759
Complete Motor Drive Assy., with
8a
144B41
22T Pulley
8b
144B42
28T Pulley
8c
20C14
Drive Belt
8d
158A69
Retainer Ring
KEY
PART
NO.
NO.
DESCRIPTION
9
41A4843
Interrupter cup
10
41A4837
Worm gear and retainer
11
41C4669
Wire harness assembly
12
41C4672
RPM sensor assembly
13
41D4674-9C
Receiver logic board assembly
14
41D4839-5
Cover
15
1C4840-6
Control Center access door
16
175C123
Light socket
17
108D47
Light lens