Roadmaster AddaBRAKE 8800 - Pre-Installation Checks

1. ALWAYS CHECK THE ROADMASTER WEB SITE —
www.roadmasterinc.com—forvehicle-specificinforma-
tion.Select‘Vehicle-SpecificInfo,’enterthemotorhome
andtowed vehiclemake, modelandyear,thenselect
‘BrakingSystems.’
2. If the battery must be disconnectedfortowing,
a12-voltoutletkit(partnumber9332)andastoplight
switchmustbeinstalled.ROADMASTERmanufactures
stop light switch kits for a number of vehicles; to
see if one is available for any specific vehicle, visit
www.roadmasterinc.com and select ‘Vehicle-Specific
Info,' enter the vehicle make, model and year, then
select‘BrakingSystems'andscrolldownthepage.
Note: if a stop light switch kit is listed on the web
site for any particular vehicle, it is required.
Note: an Automatic Battery Disconnect (part number
765) is available for vehicles which must be towed with
the battery disconnected. If you choose to install the
Automatic Battery Disconnect, a 12-volt outlet kit and a
stop light switch are still required; the Brake-Lite Relay
(see below) is not required.
3. If fuse(s) must be removed from the vehicle be-
fore it can be towed—verifythatremovingthefuse(s)
willnotdisruptpowertoAddaBRAKE,orotherwiseaf-
fecttheinstallationoroperation.
4. Check the towed vehicle’s 12-volt outlet for
correct power —AddaBRAKEispoweredthroughthe
12-voltoutlet,withtheignitionkeyturnedtothe“tow”
position. However,some vehicles only havepowerat
the 12-volt outlet when the engine is running. Before
you begin the initial installation, verify that you have
power at the towed vehicle’s 12-volt outlet with the
ignitionkeyturnedtothe“tow”position.
  Ifthereisnopower,youcaninstalltheoptional12-
voltoutletkit(partnumber9332).Wheninstalled,this
kit will provide powerto the 12-volt outletevenwhen
theengineisoff.
5. Check the 12-volt outlet sockettomakecertain
that:a)thesockethasbeenwiredcorrectly;andb)the
socketisnotcorroded.
a. Make certain that the socket has been wired cor-
rectly—thecontactpointatthebottom ofthesocket
shouldbepositive,andtheoutershellaroundthetop
ofthesocketshouldbenegative.
If the socket’s positive and negative connections
have been reversed, the fuse in the AddaBRAKE
power cord will blow when the cord is plugged into
the 12-volt outlet.
b. Make certain that the socket is not corroded
or otherwise damaged—acorroded socketmaynot
provide constant power to AddaBRAKE, which may
Before you begin the initial installation…
causeintermittentoperation.
  Ifthesocketiscorrodedordamaged,youcanin-
stalltheoptional12-voltoutletkit(partnumber9332).
Wheninstalled,this kitwillprovideconstantpower to
AddaBRAKE.
If the towed vehicle has a single 12-volt outlet
which has been used to heat a cigarette lighter plug,
install the optional 12-volt outlet kit for the Adda-
BRAKE power supply.
Using a cigarette lighter plug in a 12-volt socket
will corrode the contact points. The socket will not
supply sufficient voltage to be used as the Adda-
BRAKE power source — AddaBRAKE may not oper-
ate, or may only operate intermittently.
6. The circuit at the towed vehicle’s 12-volt outlet
must be rated at NO LESS THAN 15 AMPStopower
AddaBRAKE.Checkthefuseattheoutlet—ifthefuse
isratedat15ampsorhigher,thecircuitisadequateto
powerAddaBRAKE.Ifthefuseisratedatlessthan15
amps,installtheoptional12-voltoutletkit(partnumber
9332). When installed, this kit will provide power to
AddaBRAKE.
If the circuit at the 12-volt outlet is rated at less
than 15 amperes, install the optional 12-volt outlet
kit. Depending on the available current during tow-
ing, AddaBRAKE may not function, or may function
incorrectly, without at least 15 amps.
If the circuit is rated at less than 15 amps, do not
simply replace the outlet’s fuse with a higher-am-
perage fuse. This will cause the wiring to overheat,
which can cause wiring damage, an electrical fire,
or other consequential, non-warranty damage.
Failure to follow these instructions may cause
property damage, personal injury or even death.
7. Check the towed vehicle’s brake lights—Adda-
BRAKE must function with the ignition key turned to
the“tow”position.However,somevehicles’brakelights
only operate with the key turned to the “on” position.
Checktoseeifthisisthecase:turntheignitionkeyto
the“tow”position,applythebrakes,andchecktosee
ifthebrakelightsilluminate.Ifthebrakelightsdonot
illuminate, a two-prong stop light switch and 10-amp
fusemustbeinstalled.
Note: check the owner’s manual to see if the vehicle
is equipped with an “automatic shut down” feature. If
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