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KIT# 921-3

07/31/13 

KS

Fig.A

Fig.B

T

his bracket kit is one of our MX series, 

which allows the visible front portion of 

the brackets to be easily removed (Fig.A 

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 pres-

ent and accounted for. 

IMPORTANT:

 

All 

baseplates

 

must

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

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. 

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

Installation of most baseplates requires moderate mechanical ap-

titude 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 fit-

ted 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 re-

paired 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.

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

• 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 turn-

ing 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 ROAD-

MASTER 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 condi-

tioner lines, radiators, etc.

, or non-warranty damage to the towed

vehicle will result.

This baseplate is only warranteed for the original installation.

 In-

stalling a used baseplate on another vehicle is not recommended and

will void the warranty.

Failure to follow these instructions 

can result in property damage, 

personal injury or even death.

WARNING

BASEPLATE KIT   

INSTALLATION INSTRUCTIONS

ROADMASTER, Inc.     6110 NE 127th Ave.     Vancouver, WA 98682     360-896-0407    fax 360-735-9300     www.roadmasterinc.com

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