Chamberlain 85870 Manual page 6

Preparation
Carton Inventory
Accessories will vary depending on the garage door opener model purchased. Depending on your
specific model, other accessories may be included with your garage door opener. The instructions
for these accessories will be attached to the accessory and are not included in this manual. The
images throughout this manual are for reference and your product may look different.
Garage Door Opener Assembly
A. Header bracket
B. Pulley and bracket
C. Door bracket
D. Curved door arm
E. Straight door arm
F. Trolley
G. Emergency release rope and handle
H. Rail
I. Garage door opener
J. Chain spreader
K. Chassis support bracket
L. Chain
M. Door control
N. White and red/white wire
O. The Protector System
Safety reversing sensors with white and white/black wire attached: Sending sensor (1),
receiving sensor (1), and safety sensor brackets (2)
P. Safety labels and literature
Q. Rail grease
R. Remote Control (893MAX)
Hardware
Assembly
Chassis Support Bracket Hardware
Screw #8-32 x 3/8" (2)
Hex Bolts 1/4"-20 x 5/8" (2)
Lock Washers (2)
Washered Bolt 5/16"-18 x 1/2" (2)
Installation
Hex Bolt 5/16"-18 x 7/8" (4)
Lag Screw 5/16"-9 x 1-5/8" (2)
Lag Screw 5/16"-18 x 1-5/8" (2)
Clevis Pin 5/16" x 2-3/4" (1)
Clevis Pin 5/16" x 1-1/4" (1)
Clevis Pin 5/16" x 1" (1)
Nut 5/16"-18 (4)
Lock Washer 5/16"-16 (4)
Door Control Hardware
Screw 6AB x 1" (2)
Screw 6-32 x 1" (2)
A
B
F
C
G
D
E
O
6
Chain Spreader Hardware
Screw #8-32 x 3/8" (2)
Rail Hardware
Washered Bolts and Lock Washer (mounted in
the top of the garage door opener)
Self-Threading Screw 1/4"-14 x 5/8" (2)
Ring Fastener (3)
Carriage Bolt 1/4"-20 x 1/2" (2)
Wing Nut 1/4"-20 (2)
Hex Bolt 1/4"-20 x 5/8" (2)
Lock Nut 1/4"-20 (2)
Lag Screw 1/4" x 1-1/2" (4)
Drywall Anchors (2)
Insulated Staples
L
H
M
K
N
J
Not
Provided
P
Q
I
R
Not
Provided