Salsbury Industries 3913SFRE13, 3909DGLD, 3909SGLD, 3913DSAN, 3911SSAN Installation Manual
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SALSBURY INDUSTRIES
1010 East 62nd Street, Los Angeles, CA 90001-1598
Ph: 1-800-624-5269 Int’l Ph: 323-846-6700
Fx: 1-800-624-5299 Int’l Fx:
323-846-6800
www.mailboxes.com engineering@mailboxes.com
Installation instructions are provided as general guidelines. It is advised that a professional installer be consulted. Salsbury Industries assumes no product assembly or installation liability.
Copyright © 2011 Salsbury Industries. All rights reserved. (Rev. 06, 02/10/17) Page 1 of 2
With its high quality design and construction, Salsbury’s 3900 series 4C horizontal mailbox free-standing enclosure will provide years of maintenance
free service. Please read this entire document before beginning installation.
Installation Planning Notes
1. The free-standing enclosure shipped along with your 4C mailbox
unit has been configured to meet the USPS height regulations.
2. The free-standing enclosure is shipped fully assembled with the
exception of the front panel and the mailbox unit, which are
installed after the enclosure is fastened to the floor or concrete
pad.
3. Determine the location of each of the 3900 series free-standing
enclosures along with the 3700 series mailbox units.
4. If necessary, construct the concrete pad on which the 3900 free-
standing enclosure(s) will be mounted.
5. Due to the various mounting surfaces and subfloors to which the
free-standing enclosure may be installed, mounting fasteners
are not supplied.
6. Select the appropriate anchors or fasteners to attach the free-
standing enclosure to the floor or other surface to which it will be
mounted.
7. Provide a means for leveling the enclosure, if necessary.
Types of Fasteners Used
Type A, Fig. 1 – To fasten the front panel into the enclosure, use the
#10x1/2” pan head self-drilling sheet metal screw (supplied).
Type B, Fig. 2a – To fasten the sides and the bottom of the mailbox
unit into the enclosure, use the #8x3/4” pan head self-tapping
machine screw (supplied).
Mounting Free-Standing Enclosure to Floor
Place the enclosure into the selected position. Transfer mark the
four (4) large hole locations in the horizontal bottom side flanges to
the mounting surface. See Fig. 3. Remove the enclosure and make
the holes for the installation fasteners. Install the installation
fasteners. Position the rubber pads on the floor surface. See Fig. 4.
Return the enclosure to the selected position on top of the rubber
pads. Lock the enclosure down by completing the installation of the
fasteners. The use of leveling nuts on stud anchors is suggested.
Installing Front Panel
Install the front panel at the lower end of the front of the enclosure.
Use Type A screws. The quantity varies depending on the height
and width of the front panel. See Fig. 5.
3900 Series Free-Standing Enclosures
For 3700 Series 4C Front Loading Recessed Mounted Horizontal Mailboxes
Installation Instructions
Fig. 1
Fig. 5
Type A
Fig. 2a
Type B
Type A
INSTALLATION
FASTENERS
(NOT SUPPLIED)
LEVELING
NUT
Fig. 3
Fig. 4
RUBBER
PAD
SALSBURY INDUSTRIES
1010 East 62nd Street, Los Angeles, CA 90001-1598
Ph: 1-800-624-5269 Int’l Ph: 323-846-6700
Fx: 1-800-624-5299 Int’l Fx:
323-846-6800
www.mailboxes.com engineering@mailboxes.com
Installation instructions are provided as general guidelines. It is advised that a professional installer be consulted. Salsbury Industries assumes no product assembly or installation liability.
Copyright © 2011 Salsbury Industries. All rights reserved. (Rev. 06, 02/10/17) Page 2 of 2
Installing Mailbox Unit
Lifting and installing the mailbox unit into the enclosure is a two (2)
person operation. Open appropriate compartment doors to provide
handholds. Lift the mailbox unit and carefully slide it into the
enclosure until the front peripheral flange is flush against the front
flanges of the enclosure. See Fig. 6.
Fastening Mailbox Unit to Enclosure
Open the master doors of the mailbox unit until the hold-open rods at
the top inside corners of the doors engage. Install Type B selftapping machine screws (provided) through each counter bored hole
in the bottom flange of the mailbox and through each slotted hole in
the vertical flanges on the sides of the mailbox. See Fig. 7, Fig 8A
and Fig 8B. The number of screws required varies depending on the
height and width of the unit. A maximum height double column unit
is shown.
Close the master doors. The installation is now complete.
Type B
Type B
LEFT
MASTER
DOOR
RIGHT
MASTER
DOOR
Fig. 6
Fig. 7
Fig. 8A
Mounting
Screw
Location
Mounting
Screw
Location
Type B
Fig. 8B
3900 Series Free-Standing Enclosures
For 3700 Series 4C Front Loading Recessed Mounted Horizontal Mailboxes
Installation Instructions
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