Roadmaster 921-3 Installation Instructions Manual

ROADMASTER, Inc. 6110 NE 127th Ave. Vancouver, WA 98682 360-896-0407 fax [phone] www.roadmasterinc.com

BASEPLATE KIT

INSTALLATION INSTRUCTIONS

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Note: this bracket will not accom­modate the Guardian rock shield,
some models of the Tow Defender,
Stowaway or the StowMaster and
StowMaster All Terrain tow bars.

KIT# 921-3

07/31/13

KS

Important

ITEM QTY NAME MATERIAL

1.......... 2 ...........5/8” x 3” BOLT ........................................................................................ 350154-00

2.......... 2 ...........5/8” LOCK WASHER .............................................................................. 350313-00

3.......... 2 ...........1/2” x 4” BOLTS ...................................................................................... 350105-00

4.......... 2 ...........1/2” x 1 1/2” BOLT .................................................................................. 350095-00

5.......... 4 ...........1/2” LOCK WASHER .............................................................................. 350309-00

6.......... 2 ...........1/2” HEX NUT ......................................................................................... 350258-00

7.......... 8 ...........8mm x 1.25 x 30 mm BOLT .................................................................... 356001-00

8.......... 8 ...........8mm LOCK WASHER ............................................................................ 355705-00

9.......... 8 ...........8mm FENDER WASHER ....................................................................... 355702-00

10........ 2 ...........5/8” DRAW PIN W/ CLIP ........................................................................ 357035-00

11 ........ 2 ...........3/16” x 1 1/4” x 2” BACKING PLATE ...................................................... A-002489

12........ 1 ...........DRIVER SIDE BRACE ........................................................................... C-001602

13........ 1 ...........PASSENGER SIDE BRACE .................................................................. C-001603

14........ 1 ...........MAIN RECEIVER ................................................................................... C-002171

15........ 1 ...........DRIVER SIDE ARM ............................................................................... C-001477

16........ 1 ...........PASSENGER SIDE ARM ....................................................................... C-001476

R O A D M A S T E R, I N C.

KIT# 921-3

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and Fig.B). The kit consists of the main receiver
brace, two rear braces, removable front braces
and a hardware pack.

The main receiver brace mounts to the frame
rails and bumper core on each side. The remov
able front braces insert into the receivers on each
side and are secured with draw pins.

Before starting the installation, lay out the kit
components in order, as they will be used. This
will give you a visual idea of how the components
work, and will also confirm that everything is pres­ent and accounted for.

BASEPLATE KIT

INSTALLATION INSTRUCTIONS

ROADMASTER, Inc. 6110 NE 127th Ave. Vancouver, WA 98682 360-896-0407 fax [phone] www.roadmasterinc.com

07/31/13

KS

his bracket kit is one of our MX series,
which allows the visible front portion of

Fig.A

the brackets to be easily removed (Fig.A

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Fig.B

IMPORTANT:

tightening) unless otherwise instructed. All bolts must be torqued for proper strength. If more than one bolt is used per
fastening point, the diagram may only show one.

All baseplates must be assembled with all the bolts left loose for final adjustment and positioning (before

• Use flat washers over all slotted holes • Use lock washers on all fasteners

ROADMASTER Limited Warranty, including One-Year Conditional Warranty Text and Product Registration Card, in Carton.

Failure to follow these instructions

WARNING

• Installation of most baseplates requires moderate mechanical ap­titude and skills. We strongly recommend professional installation by

an experienced installer.

• The installer must read the instructions and use all bolts and parts
supplied. Failure to do so could result in loss of the towed vehicle.

• Use Loctite® Red on all bolts used for mounting this bracket.

• Every 3,000 miles, the owner must inspect the fasteners for proper
torque, according to the bolt torque requirements chart on the last
page of these instructions. The owner must also inspect all mount-

ing points for cracks or other signs of fatigue every 3,000 miles.

Failure to do so could result in loss of the towed vehicle.

• The owner must check the vehicle manufacturer's instructions for
the proper procedure(s) to prepare the vehicle for towing. Some
vehicles must be equipped with a transmission lube pump, an axle
disconnect, driveline disconnect or free-wheeling hubs before they can
be towed. Failure to properly equip the vehicle will cause severe

damage to the transmission.

• If running changes were made by the vehicle manufacturer after this
kit was designed, some bolts or other fasteners in the hardware pack
may no longer be the correct size. It is the installer’s responsibility
to verify that the baseplate is securely fastened to the vehicle and fit­ted with the correct hardware to account for these changes. Failure to
securely fasten the baseplate could result in loss of the towed vehicle.

• If the towed vehicle has been in an accident, it must be properly re­paired before attaching the baseplate. Do not install the baseplate if
any structural frame damage is found. Failure to repair the damage
could result in the loss of the towed vehicle.

can result in property damage,
personal injury or even death.

• Roadmaster manufactures many styles of baseplates. If your base-

plate has removable arms, they must be removed before driving
the vehicle, unless the arms can be pinned or padlocked in place.

If not secured, the arms could vibrate out, resulting in non-warranty
damage or personal injury.

• Some motorhome chassis have such a tight turning radius that you can
damage your motorhome, towed vehicle, tow bar or baseplate while turn­ing sharply. Before getting on the road, test your turning radius in
an empty parking lot. Turning too sharply could result in non-warranty
damage to towing system, motorhome and/or towed vehicle.

• Do not back up with the towed vehicle attached or non-warranty
damage will occur to your towing system, motorhome and/or towed
vehicle.

• The safety cables must connect the towing vehicle to the towed

vehicle frame to frame, with the cables crossed, with enough slack
for sharp turns. Refer to the cable instructions for proper routing.

Failure to leave enough slack in the safety cables, or failure to connect
the safety cables frame to frame, will result in the loss of the towed
vehicle.

• This kit is designed for use with ROADMASTER tow bars and ROAD­MASTER adaptors only. Using this kit with other brands, without

an approved ROADMASTER adaptor, may result in non-warranty
damage or injury.

• Do not use this document for custom fabrication, as it may not show
all parts or structural components. Custom fabrication, or any attempt
to copy this baseplate design, could result in loss of the towed vehicle.

• Upon final installation, the installer must inspect the baseplate to

ensure adequate clearance, particularly around hoses, air condi­tioner lines, radiators, etc., or non-warranty damage to the towed

vehicle will result.

• This baseplate is only warranteed for the original installation. In­stalling a used baseplate on another vehicle is not recommended and
will void the warranty.