Roadmaster AddaBRAKE 8800 - Disconnecting AddaBRAKE

Charge the towed vehicle’s battery (with a battery
charger or by running the engine) after towing.
AddaBRAKE draws power from the towed ve-
hicle’s battery. Depending on the age and condition
of the battery, AddaBRAKE may drain the battery
completely if it is not charged.
Connecting AddaBRAKE
continued from preceding page
tions), and AddaBRAKE is installed, stop the mo-
torhome while the towed vehicle’s engine is run-
ning.
Once the towed vehicle's engine is turned off,
press the AddaBRAKE “Test” button down, then
release it, to cycle the pedal clamp up and down
three times.
Depending on the make and model of the towed
vehicle, it may be necessary to repeat the test cycle
a second time.
If the stored vacuum in the towed vehicle’s power
brake system is not released in this manner, Ad-
daBRAKE will apply excessive braking force when
it is activated, which will cause severe tire and/or
brake system damage to the towed vehicle.
Disconnecting AddaBRAKE
1. Pullonthecordlock(Figure11)toreleaseit,and
unplugthe12-voltpowercord.
2. DisconnecttheAddaBRAKEwiringharnessfromthe
breakawaywiringharnessandthebrakesignalwire.
3. Movethedriver’sseatback,asfarasitwillgo.
4. Pressandholdtheairreliefbutton(Figure5)until
alltheairintheairreservoirisreleased.Ifnecessary,
continue to hold the air relief button and move Ad-
daBRAKE back, to allow easier access to the brake
pedal.
5. Detachthepedalclampfromthebrakepedal.
6. Wrapthe12-voltpowercordandthewiringharness
aroundthecordholder,andliftAddaBRAKEoutofthe
vehicle. (The adjustable seat pad can be used as a
handle.)
7. Disconnectthemotorhomemonitorpatchcordfrom
thetowedvehicleandthemotorhome.
Note: this step is unnecessary if the monitor wiring
was connected to the electrical sockets in the towed
vehicle and the motorhome. Refer to Steps C and F
under “Initial Installation.”
8. Disconnectthebreakawaycable(Figure1)fromthe
frontofthetowedvehicleandthemotorhome.Donotre-
movethelargeringandpinfromthebreakawayswitch.
Leave the break away pin in place (on the ring),
even when the vehicle is not being towed.
If the pin is not in place when AddaBRAKE is
connected, the break away system will be activated
— the air cylinder will extend and will not retract.
QUICK REFERENCE CHECKLIST
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