Chamberlain 3850 Garage Door Opener User Manual


 
36
2
5
6
1
3
7
8
4
KEY PART
NO. NO. DESCRIPTION
1 4A1008 Master link kit
2 41B5424 Belt pulley bracket
3 41B3869-1 Complete trolley assembly
4 109B33 Trolley clip
5 2777BD One-piece rail
6 41A5434-11 Full belt assembly
7 41B4103 Tensioner assembly
8 83A11-2 Rail grease
8
11
12
6
N
OT
ICE
U
P
C
E
I
L
I
N
G
M
O
U
N
T
O
N
L
Y
9
7
1
5
10
13
14
L
O
C
K
L
IGH
T
3
4
2
Installation Parts
REPAIR PARTS
Rail Assembly Parts
KEY PART
NO. NO. DESCRIPTION
1 398LM LCD Motion detecting door control console
2 373P 3-Button remote control
3 10A19 3V2016 Lithium battery: LED and opener
4 10A33 3V2016 Lithium battery: proximity switch
5 29C151 Remote control visor clip
6 41A2828 Emergency release rope and handle
assembly
7 41B4494-1 2-Conductor bell wire, white & white/red
8 41A5047-1 Door bracket w/ clevis pin & fastener
9 41A4353-1 Header bracket w/clevis pin & fastener
10 41A5034 Safety sensor kit (receiving and sending
eyes) with 3' (.9 m) 2-conductor bell wire
11 178B34 Straight door arm section
12 178B35 Curved door arm section
13 41A5266-1 Safety sensor brackets (2)
14 485LM Battery
NOT SHOWN
101D173 Push bar for door control
41A2770-5 Installation hardware bag (includes
hardware listed on page 5).
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