Stromberg Carlson Products LA-401 User manual

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www.strombergcarlson.com
UNIVERSAL EXTERIOR RV LADDER
MODEL # LA-401 & LA-401BA
INS-LA401 & INS-LA401BA
03.12.2018
Thank you for purchasing the Stromberg Carlson Products, Inc. LA-401/LA-401BA Universal Exterior RV Ladder.
Please read all directions thoroughly prior to assembly. When assembled and used properly, this product will
provide many years of trouble free service. This kit contains components and hardware for one complete universal
ladder. Complete the following easy steps and you will be ready to use your new universal ladder.
Tools Needed for Installation:
#2 Phillips
Screwdriver
Hack Saw or Tube
Cutter
Drill
3/16”& ¼”
Drill Bit
Masking Tape or
Pencil
Adjustable Wrench
or Pliers
Assembly Instructions:
1. Determine backing/framing locations in the back wall and rear roof of
your RV; mark accordingly (using masking tape or a pencil). This will
help you in determining standoff placement later in the installation. If
you are unable to determine backing/framing locations with a stud
finder or other method, you will need to call your RV manufacturer for
a blue print or contact an RV service center for assistance.
2. Insert the (2) Top U-Shaped Ladder Sections (part #1) into the Middle
Straight Ladder Section (part #2). Bolt them together using (2) #10-24
x 30 mm Bolts (part #7).
3. Keeping the Middle Straight Ladder Section parallel with the back wall
of your RV, place the upright tubes of the Top U-Shaped Ladder
Sections on the roof of your RV. Be sure to maintain 5” spacing
between the vertical tube and back wall of your RV for installation of
the standoffs in later steps.
4. Trim the roof mount ends of the Top U-Shaped Ladder Section vertical tubes so the ladder will mount flush to
the roof (trimming may not be necessary if you do not have a sloped roof). See FIG. 1
5. Using a 3/16” drill bit, drill a hole ½” up from the bottom of the newly cut tube. Attach (2) Roof Mount Brackets
(part #6) to the upright tubes of the Top U-Shaped Ladder Sections, using (2) #10-24 x 37 mm Bolts (part #7).
6. Attach the Roof Mount Brackets to the roof of your RV, using (4) #10 Sheet Metal Screws (part # 7). Be sure to
anchor them into backing/framing.
7. Attach the top (2) 5” Standoff Assemblies (part #4) to your RV, using (8) #10 Sheet Metal Screws (part #7). Be
sure to attach where your RV ladder and the pre-identified backing/framing locations coincide, turning the
standoff mounting plate in the orientation that best aligns with the structural backing in your RV. These
standoffs should meet your ladder uprights between the top two treads.
8. Mark your ladder uprights where the standoffs meet. Using a ¼” drill bit, drill through your ladder uprights and
attach them to the standoffs, using the bolts that were stored during shipment in the cap of the standoff.

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www.strombergcarlson.com
UNIVERSAL EXTERIOR RV LADDER
MODEL # LA-401 & LA-401BA
INS-LA401 & INS-LA401BA
03.12.2018
9. Place the rectangular mounting plates from the Bottom J-Shaped Ladder Section (part #3) against your RV (at
a location where backing/framing exists), approximately 6” to 12” above your bumper, in line with the top two
ladder sections already installed.
10. Maintaining 5” spacing between the ladder and the rear wall of your
RV, mark the ladder tubing where the Bottom J-Shaped and Middle
Straight Ladder Sections meet. Trim excess ladder tubing, using a
hacksaw or tube cutter. See FIG. 2
11. For RVs with a flat rear wall, turn the (2) Swivel Castings (part #5) 90°
(so they swivel left and right when facing the ladder) and insert them
in the Middle Straight and Bottom J-Shaped Ladder Sections. Inserting
the Swivel Castings in this manner will prevent the ladder from sagging
in toward or bulging away from your RV. Using a 3/16” drill bit, drill a
hole through the ladder tubing and Swivel Casting ½” above and ½”
below the trimmed ladder end. Connect the ladder tubing and Swivel
Castings using (4) #10-24 x 30 mm Bolts (part #7).
12. For RVs with a curved rear wall, keep the (2) Swivel Castings (part #5)
in line with the ladder uprights (so they swivel toward and away from
you when facing the ladder) and insert them in the Middle Straight
and Bottom J-Shaped Ladder Sections. Inserting the Swivel Castings in this manner will allow the ladder to pivot,
following the curve of your RV. Using a 3/16” drill bit, drill a hole through the ladder tubing and Swivel Casting
½” above and ½” below the trimmed ladder end. Connect the ladder tubing and Swivel Castings using (4) #10-
24 x 30 mm Bolts (part #7).
13. Using (8) #10 Sheet Metal Screws (part #7), secure the Bottom J-Shaped Ladder Section brackets to your RV.
14. Attach the bottom (2) 5” Standoff Assemblies (part #4) to your RV, using (8) #10 Sheet Metal Screws (part #7).
Be sure to attach where your RV ladder and the pre-identified backing/framing locations coincide, turning the
standoff mounting plate in the orientation that best aligns with the structural backing in your RV. These
standoffs should meet your ladder uprights 8”-10” below your Swivel Castings.
15. Mark your ladder uprights where the standoffs meet. Using a ¼” drill bit, drill through your ladder uprights and
attach them to the standoffs, using the bolts that were stored during shipment in the cap of the standoff.
Be sure to use an outdoor type sealant at all points where holes are being drilled into your RV.
CAUTION: All screws connecting the ladder to the RV must be fastened to the RV’s blocking or sub frame. If
you are uncertain about the blocking or sub frame location, contact your trailer manufacturer. It is unsafe to
use a ladder that is not connected to the RV’s blocking or sub frame. Be sure to maintain safe contact with your
new ladder at all times while ascending or descending.
Maximum weight capacity –250 lbs. when properly installed.

phone: [phone]
www.strombergcarlson.com
UNIVERSAL EXTERIOR RV LADDER
MODEL # LA-401 & LA-401BA
INS-LA401 & INS-LA401BA
03.12.2018
Carton Contents and Assembly Diagram
If you are missing any components, please contact Stromberg Carlson
Products at 231-947-8600 x 108.
LA-401 (SILVER EXTERIOR LADDER) Carton Contents
Part #
Model #
Description
Qty
1
1LA-401-A1
Top U-Shaped Ladder Section
2
2
1LA-401-A2
Middle Straight Ladder Section
1
3
1LA-401-A3
Bottom J-Shaped Ladder Section
1
4
8535
5" Standoff Assemblies
4
5
8525-BK
Swivel Castings (Hinges)
2
6
8521-BK
Roof Mount Brackets
2
7
1LA-401-B
#10 Sheet Metal Screws
28
#10-24 x 30 mm Bolts & Nuts
6
#10-24 x 37 mm Bolts & Nuts
2
LA-401BA (BLACK EXTERIOR LADDER) Carton Contents
Part #
Model #
Description
Qty
1
1LA-401BA-A1
Top U-Shaped Ladder Section
2
2
1LA-401BA-A2
Middle Straight Ladder Section
1
3
1LA-401BA-A3
Bottom J-Shaped Ladder Section
1
4
8535-B
5" Standoff Assemblies
4
5
8525-BK
Swivel Castings (Hinges)
2
6
8521-BK-B
Roof Mount Brackets
2
7
1LA-401-B
#10 Sheet Metal Screws
28
#10-24 x 30 mm Bolts & Nuts
6
#10-24 x 37 mm Bolts & Nuts
2