8
The motorhome monitor LED
The motorhome monitor LED is a tool designed to no-
tify you of any malfunction with the supplemental braking
system —
If the light is on
— the supplemental braking system
is applying the brakes in the towed vehicle.
If the light is off
— the supplemental braking system
has not been activated.
If the monitor light is on when the motorhome brakes
are not being applied, stop immediately. Identify and cor-
rect the cause of the malfunction before using the supple-
mental braking system.
If you cannot identify the cause, do not tow with the
supplemental braking system. Disconnect the patch cord
between the towed vehicle and the motorhome, and re-
move the air cylinder from the towed vehicle, before tow-
ing.
Towing with the monitor light illuminated while the mo-
torhome brakes are not being applied voids the ROAD-
MASTER warranty — ROADMASTER will disallow warranty
claims on any brake damage or brake failure.
If the motorhome monitor LED is illuminated
while the motorhome brakes are not being applied,
stop immediately. The light indicates that the towed
vehicle’s brakes are being applied independently —
significant brake system damage or failure, a brake
system fire or other consequential, non-warranty dam-
age can occur.
Failure to follow these instructions may cause
property damage, personal injury or even death.
Warranty disclaimer
It is the responsibility of the owner to ensure that the
motorhome monitor LED is functioning each time before
towing (see page 6). If the monitor light does not turn on
and off as the supplemental brakes are applied and re-
leased, the owner must discontinue using the supplemen-
tal braking system immediately and identify and correct
the cause of the malfunction before using the supplemen-
tal braking system.
The purpose of the motorhome monitor light is to notify
you of any malfunction long before damage can occur
to the towed vehicle or its braking system. Accordingly,
ROADMASTER expressly disallows any warranty claims
on any brake damage.
If the engine must be started periodically…
The engines of certain vehicles, such as the Saturn Vue
and others, must be started periodically during towing.
If the towed vehicle’s engine must be started, be cer-
tain to release the vacuum in the power brake system
BEFORE YOU RESUME TOWING
. If the vacuum is not
released, BrakeMaster will apply excessive force when it
is activated.
CAUTION
Starting the towed vehicle’s engine will create
a vacuum in the power brake system. The vacuum
must be released before towing. If the vacuum is not
released, BrakeMaster will apply excessive braking
force when it is activated, which will cause severe tire
and/or brake system damage to the towed vehicle.
After the towed vehicle’s engine has been started
and then turned off, disconnect the BrakeMaster air
cylinder and pump the towed vehicle’s brake pedal
several times, to release the stored vacuum in the
towed vehicle’s power brake system.
Depending on the make and model of the towed
vehicle, it may be necessary to pump the brake pedal
repeatedly to release the vacuum.
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