Chamberlain Lift-Master 1240R - 1/4HP, Owner'S Manual

Page: 38 / 40

Motor Unit Assembly Parts
38
2
1
2A
10
8
13
14
15 16
19
4
3
DN
UP
Bro w n
Wire
(Do w n)
Contact
LIMIT SWITCH ASSY.
Grey
Wire
Yello w
Wire
(Up)
Contact
Center Limit
Contact
Drive
Gear
9
20
16
12
18
11
17
3
1A
5
6
7
KEY PART
NO. NO. DESCRIPTION
1 41A4208 Chain spreader w/screws
(1256R, 1246R)
1A 31D380 Sprocket cover (all other models)
2 41C4206A Gear and sprocket assy.
(1256R, 1246R)
2A 41C4220A Gear and sprocket assy. (All other
models) Complete with:
Spring washer, 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)
4 41B4245 Line cord
5 143D100 End panel w/all labels
6 175B88 Light socket
7 108D36 Lens (All models except 1240R)
8 30B363 Capacitor - 1/2HP
30B387 Capacitor - 1/3HP
30B366 Capacitor - 1/4HP
9 12A373 Capacitor bracket
10 41A3150 Terminal block w/screws
KEY PART
NO. NO. DESCRIPTION
11 41D3058 Universal replacement motor &
bracket assy.
Complete with:
Motor, worm, bracket, bearing
assembly, RPM sensor.
12 41A3583-11 Cover (1256R, 1255R)
41A3583-15 Cover (1246R, 1245R)
41A3583-16 Cover (1240R)
13 41A2818 Helical gear & retainer w/grease
14 41D3452 Limit switch asembly
15 41C4398A RPM sensor assembly
16 41C4246 Wire harness assy. w/plug
17 41A2826 Shaft bearing kit
18 41A2822A Interrupter cup assy.
19 41A5021-1G Receiver logic board assy.
Complete with: Logic board,
End panel w/all labels, Light socket
20 41A5014-3 End panel w/all labels
NOT SHOWN
41A2825 Opener assy. hardware kit (includes
screws not designated by a number
in illustration).