General Information; Parts Supplied; Model Classifications - Chamberlain LiftMaster Professional SW420 Installation And Maintenance Instructions Manual

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General Information

General Information

Parts Supplied

There are two cartons for the standard model SW420. The large carton contains the powerhead unit
and small parts. The long thin carton contains the two pieces of the control arm. In addition, if the
pedestal mount option was ordered, a third carton containing the pedestal and associated hardware is
included.
Unpack the cartons, checking for possible damage during shipping. Damage claims must be filed with
the freight carrier.
PART # DESCRIPTION
SW420 Power Unit
02-041-SP Stop Button
07-2703 Control Arm
07-2704 Arm Extension
40-3505 Warning Sign
07-2705 Arm Stop
10-2111 Gate Bracket
11-2754 U-Bolt Nut Tool
12-2727 Flange Bushing

Model Classifications

RESIDENTIAL VEHICULAR GATE
OPERATOR – CLASS 1
A vehicular gate operator or system that is
intended for use in a home of one to four single
family dwelling or a garage or parking area.
COMMERCIAL/GENERAL ACCESS
VEHICULAR GATE OPERATOR – CLASS 2
A vehicular gate operator or system intended for
use in a commercial location or building such as a
multi-family housing unit of five or more single
family units, hotel, garages, retail store, or other
building servicing the general public.
MODEL
SW420
Doc 01-G0610
Rev A
QTY.
1
1
1
1
2
1
1
1
3
Table 1: Parts Supplied
CLASS 1 CLASS 2
Table 2
PART # DESCRIPTION
80-206-65 5/8 Washer
80-10026 3/8 Spacer
82-HN38-16 3/8-16 x 1" Bolt
82-HN38-18 3/8-16 x 1-1/4" Bolt
82-SH37-10 3/8-24 x 5/8 Capscrew
84-WH-38 3/8-16 Nut
85-FW-38S 3/8 Flat Washer
80-2754 U-Bolt Nut
INDUSTRIAL/LIMITED ACCESS
VEHICULAR GATE OPERATOR – CLASS 3
A vehicular gate operator or system intended for
use in an industrial location or building such as a
factory or loading dock area or other locations not
intended to service the general public.
RESTRICTED ACCESS VEHICULAR GATE
OPERATOR – CLASS 4
A vehicular gate operator or system intended for
use in a guarded industrial location or building
such as an airport security area or other restricted
access location not servicing the general public,
in which unauthorized access is prevented via
supervision by security personnel.
CLASS 3
QTY.
2
2
1
2
1
2
1
2
CLASS 4