12213 1200.01
15
OPERATING YOUR
TRAILER EQUIPPED
WITH DISC BRAKES
The disc brakes on your trailer function
under the surge principle. As the tow
vehicle brakes are applied, the trailer
pushes, or “surges”, against the tow ball.
This action generates pressure in the
trailer hydraulic system and causes the
brake calipers to squeeze the brake pads
and grip the rotors.
While operating the vehicle in reverse,
pressure is applied to the trailer
hydraulic system as the tow ball pushes
back on the actuator. With the solenoid
wire properly attached to the reverse
light circuit on the tow vehicle and the vehicle
gear selector in reverse position, the actuator
free-reverse solenoid is energized. When
energized, the solenoid bleeds all hydraulic line
pressure and fluid flows directly to the actuator
master cylinder reservoir. The wheels then
rotate freely in reverse.
Slide
Solenoid
Wire
Fill
Cap
Latch
Lever
Safety
Pin
Safety
Brake
Cable
Safety Pin
Through Hole
IMPORTANT SAFETY NOTE
Once properly wired, the tow vehicle/trailer rig may be
safely operated on the highway.
In an emergency
, the trailer may be jockeyed about the
yard or ramp by any vehicle through utilizing the
tethered lock pin placed in the left side of the actuator
inner slide adjacent to the fixed housing. This hole does
not go through both sides of the slide.
This feature is
for emergency trailer movement only, and is not
designed to supplant use of the solenoid system under
roadway operation.
CHECK FLUID LEVEL
Remove the fill cap and
check the brake fluid level at
each use.
Always top off with DOT 3
brake fluid as needed.
Latch
Lever
Engaged
Insert Safety
Pin Here
Actuator - Emergency
Backup Engaged
