
Use caution when handling the tow bar — if your hands, fingers or
any part of your body are caught between moving components, they
can be pinched, cut or otherwise injured.
Connecting the tow bar
1. First, attach the tow bar quick-disconnects — refer to “Installing the ‘quick-
disconnect’ system” on page one.
Note: the quick-disconnect system is not used with ROADMASTER ‘MS’
or ‘MX’ series mounting brackets. Instead, the tow bar is connected directly
to the mounting bracket with the base pins and linch pins.
With this exception, the instructions below apply.
2. Drive the vehicle within three or three-and-a-half feet of the motorhome
hitch receiver. The vehicle does not have to be perfectly centered to the
hitch receiver, just close. Then, put the vehicle in gear (park), set the
emergency brake and chock one of the wheels.
3. With the tow bar in the folded position, insert the stinger into the motor-
home hitch receiver, and attach the stinger to the hitch receiver with the
hitch pin and clip.
Attach the tow bar so that the Autowlok buttons and the release latch
are pointing up. Components of the tow bar may be damaged if the
tow bar is attached with the release latch and the Autowlok buttons
pointing down.
4. Hold both tow bar arms firmly, and rotate them up, so that they are
vertical.
Never release the tow bar arms when they are in the vertical posi-
tion. The arms can fall and cause severe personal injury.
5. Push the release latch forward, to bring both arms down to a horizontal
position.
Standing to one side, swing both arms away from you. Then, align the
holes in the outermost arm with the holes in one of the tabs on the quick-
disconnect base.
Attach the tow bar arm to the quick-disconnect base with one of the base
pins (Figure 3). Attach the arm so that the head of the shoulder bolt (Figure
3) is facing up. Lock the base pin with a linch pin or optional padlock.
The linch pin must be locked. The ring on the linch pin is spring-loaded
— it must be snapped over the pin, with the curved side of the linch pin
touching the ring, in order to keep the base pin secure.
Both tow bar arms must be attached to the quick-disconnect bases
and locked with a linch pin. Towing vibrations will force the linch pins
out unless they are properly locked in place over the base pins on
both quick-disconnect bases.
Failure to properly install and lock both base pins will result in the
loss of the towed vehicle, which may cause property damage, personal
injury or even death.
6. Now, swing the other arm to the opposite side and connect it in the
continued on page three
Towing with a motorhome-mounted tow bar which has an upward or
downward slope puts undue strain on the entire towing system. For that
reason, do not tow if the tow bar is not within the ‘Safe Zone’ — no
more than three inches above or below level.
Towing a vehicle with a tow bar that is not within the Safe Zone will
result in significant wear and tear on the tow bar and brackets, sig-
nificant wear and tear on the vehicle’s suspension and frame, and the
eventual failure of the towing system.
To determine if the tow bar is within the Safe Zone — first, con-
nect the motorhome and vehicle on level ground.
Next, measure the distance from the center of the motorhome receiver
down to the ground. Then, measure the distance from the center of one
of the base pins down to the ground.
Compare these two measurements. To be within the Safe Zone, they
cannot be more than three inches apart if the base pin is above or
below the motorhome hitch receiver.
If the tow bar is not within the Safe Zone, you must purchase a hitch
accessory to raise or lower the hitch receiver. ROADMASTER has three
accessories available — Hi-Low Hitches, Hi-Low Drops and Dual Hitch
Receivers — which will raise or lower the hitch receiver from two to 10
inches, depending on the model.
Towing with the tow bar more than three inches above or below level
will void the ROADMASTER warranty.
Failure to follow these instructions may cause property damage,
personal injury or even death.
2
• Stress to the owner that the tow bar must be within the ‘Safe Zone’
— no more than three inches above or below level. Towing with an out-
of-level tow bar will cause significant wear and tear on the tow bar and
mounting brackets, and on the towed vehicle’s suspension and frame.
(See the section titled “Stay within the ‘Safe Zone’” for further informa-
tion.)
• Show the owner how to properly operate the tow bar. Familiarize
yourself with the features of the tow bar. Demonstrate them to the owner,
and ask the owner to connect and disconnect the tow bar and other
components of the towing system, until the owner is comfortable with its
operation.
• The maximum towing capacity of this tow bar is 6,000 pounds. Advise
the owner to use 6,000 pound or higher rated safety cables when
towing. The safety cables must connect the towed vehicle to the towing
vehicle, frame to frame. In addition, the receiver hitch and all supple-
mentary towing equipment must be rated at no less than the weight of
the towed vehicle and all its contents.
• The tow bar must be attached to a bracket which is bolted to the
towed vehicle’s frame or unibody. In order to be towed, virtually all
vehicles require a tow bar mounting bracket that is connected to the
frame, unibody or chassis and extends beyond the bumper.
• Caution the owner to secure the tow bar with linch pins (or optional
padlocks) before towing. Unless the tow bar is secured to both vehicles
with all appropriate pins (or padlocks), the towed vehicle will detach.
• Read the instructions thoroughly before installing the ‘quick-dis-
connect’ (‘QD’) system and its components.
The tow bar will be attached to the QD system. If the QD system is not
properly aligned, centered and positioned on the towed vehicle, the tow
bar will not be centered on the towed vehicle, which may cause exces-
sive tire wear and other consequential, non-warranty damage.
• The installer must be sure that the vehicle is suitable or adaptable
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.
Installer’s safety checklist
Check the manufacturer’s instructions for the proper procedure(s) to
prepare the vehicle for towing.
• The installer must NOT use the tow bar as a ground for welding.
Connecting a ground to the ‘A-frame’ of the tow bar will cause current
to flow through the locking spring, which will detemper the spring and
destroy the locking mechanism.
• Under no circumstances should the tow bar be welded to the vehicle,
nor should any of the pre-punched mounting holes be altered. Any weld-
ing or altering of the tow bar will void the owner’s warranty.
Failure to follow these instructions may cause property damage,
personal injury or even death.
Stay within the ‘Safe Zone’
Connecting and disconnecting