Blue Ox BX88100 - Manual (Page 2)

BX88100
Universal AutoStop™
Operation Manual & Installation Instructions
292-2215 Rev A Page 2 of 12 10/30/13
CAUTION: The loaded vehicle weight must not exceed
the weight of any of your towing accessories such as: the tow
bar, safety cables, pins or the AutoStop™.
1. Insert the AutoStop™ into the receiver tube with the actuating cable on the drivers side of
the opening. Align the holes and insert the locking pin and safety clip. If the receiver tube is
open at the front, it must be closed to keep road dust out of the mechanism. Clean the area
and cover with tape.
2. Install the tow bar into the receiver tube of the AutoStop™ and secure with the locking pin and
clip. Note: Be sure the tow bar and AutoStop™ are both parallel with the ground.
3. Hook up the towed vehicle to the towing vehicle and gently back the towed vehicle until
all the slack is out of the AutoStop, moving it to its fully extended towing position. If a self
aligning tow bar is being used, be sure both arms, are fully extended to the locked
towing position. Drive the towing vehicle forward a few feet if necessary and pull on
the AutoStop™ actuating cable to remove all slack. It is very important that the connecting
cables have 4 inches of vertical slack when in the towing position. This assures the AutoStop™
will not be active when towing and allows for turns in either direction. This does not reduce the
effectiveness of the AutoStop™.
Before the adjustment is made: (1) Be sure the AutoStop™ is fully retracted to the towing
position. (2) Be sure the locking pin is inserted through the pulley hole. (3) Be sure both tow
bar arms are fully extended. (4) Be sure both arms are locked in the towing position.
4. Now you are ready to install the brake pedal cable on the towed vehicle. This cable should run
from the end of the AutoStop actuating cable in a line about parallel to the bottom plane of the
tow bar coupler, but staying inboard of the driver’s side arm, probably through the bumper or
bumper skirt and up to the brake pedal through the floor board. Visually select a route that will
not interfere with any moving components or possibly contact electrical terminals. Also, make
sure cable doesn’t come into contact with any aluminum components, such as a transmission
housing, which could cause significant wear. Make sure cable route will lead to the general
area where the steering column goes through the floor.
AutoStop™ Installation
AutoStop™ uses the forward momentum of your towed vehicle to effect a smooth quick stop,
reducing braking distances as much as 30 percent. When your RV slows down, the momentum of
the towed vehicle pushes AutoStop™ into the hitch. AutoStop™ retracts the cable, proportionally
activating your car’s brakes. The more force applied to AutoStop™, the tighter the cable - for even
more supplemental braking power. The AutoStop™ cable wraps around your car’s brake pedal
arm and connects to the receiver hitch. You determine when the car’s brakes will activate by
adjusting the preload compression of the power spring. AutoStop™ does not invade the car’s or
motorhome’s brake system in any way. The adjustable preload and power return is easily modified
but still proportional in braking.