Craftsman 139.53993D Garage Door Opener User Manual


 
Motor Unit Assembly Parts
14
12
13
14
(Down)
Brown Contact
UMJT SWITCH ASSY.
Contact Contact Wire
KEY
NO.
1
2
3
4
5
6
6a
7
PART
NO.
31C568
41B4245
30B620
41A3150
41D4671
41A6241
20B21-1
41C4672
11
DESCRIPTION
Drive shaft cover
Line cord
Capacitor- 1/2
Terminal block w/screws
Limit switch assembly
Motor drive assembly
Drive belt
Screw drive RPM kit
KEY PART
NO. NO. DESCRIPTION
8 41A4837-1 Worm gear and retainer
9 41A6635 Low voltage wire harness
9a 41A6634 High voltage wire harness
10 41AS050R-2 Receiver logic board assy.
11 41A5594-4 Cover
12 41C22-1 Drive coupling hub
13 175B88 Light socket
14 108D77 Light lens
38