Warner Electric Utility Controller Hand–Air Operated - Manual (Page 7)

7 Warner Electric • 800-825-9050 P-1395 • 819-0288
12. Tape together the wires leading from the
controller and secure them to the steering
column or underside of the dash.
13. Plug all holes in the firewall with sealant or
rubber grommets to prevent exhaust gases
from entering through the holes and to
protect the wires from abrasion.
D. Adjustment
After the entire controller system has been
installed and is operating, adjust the controller to
balance the towing vehicle brakes and the trailer
brakes.
Proper adjustment of your
controller/braking system is important for
safe automatic operation.
Warner Electric’s Air Utility Controller has an
adjustment knob to control trailer brake
synchronization. This adjustment does not affect
maximum braking capacity of the trailer brakes.
Because of the wide variety of towing vehicles
encountered, balancing towing vehicle brakes
and trailer brakes is necessary for smooth,
synchronized stops. To achieve this, the controller
adjustment should be set to provide a slight lead
in trailer braking over towing vehicle braking.
Setting the adjustment in the “MORE” brake
direction will increase the trailer brake rate of the
application, while setting in the “LESS” direction
will decrease the trailer brake rate of the
application. When proper adjustment has been
achieved, there should be no sensation of the
trailer pushing or pulling the towing vehicle during
a stop. When this setting has been reached no
further adjustment should be required, unless
trailer load changes.
For operating with varying load weights, read the
following section on “Optional Equipment”.
Optional Equipment
When the trailer load is variable or less than trailer
brake capacity, a Warner Electric Load Control,
Part No. 1300-78, should be added in series with
the brake circuit. The Load Control provides the
capability to properly proportion the braking
power of the trailer brakes to the trailer weight.
The Load Control is connected into the trailer
brake wire connected to the blue lead from the
controller. Its position is shown in Figure 5.
Contact your Warner Electric distributor or the
factory if you require additional information.
12v
Battery
Stoplight
switch
Utility controller
mounted on dash
Fuse
Red
Blue
Socket
to Stoplight
Starter
Black
10 Gauge Wire
recommended
Load control
1300-78
(Optional)
(Figure 5) Wiring Diagram