Mounting, Wiring, Bench test instructions – Draw-Tite 5520 ACTIVATOR III BRAKE CONTROL User Manual

Page 2

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UNDER DASH

VERTICAL

ANY ANGLE

IMPORTANT: MAKE SURE AREA BEHIND PANEL IS CLEAR
BEFORE DRILLING.

USE BRACKET AS TEMPLATE TO MARK HOLE LOCATIONS.
DRILL (2) 1/8" DIA. HOLES AND MOUNT BRACKET WITH
SCREWS PROVIDED.

MOUNT BRAKE CONTROL TO BRACKET USING THE
REMAINING (2) SCREWS.

MOUNTING

2. Hold the mounting bracket in the position selected and
mark hole locations through the slots in the bracket

3. Using a 1/8" dia. bit, drill holes in the marked locations.

4. With a screwdriver or a 1/4" nut driver, secure the bracket
in place using (2) self tapping screws (provided). Be careful
not to strip the holes by over-tightening.

5. Mount the brake control unit in the bracket using the
other (2) self tapping screws as shown in the illustration.

WARNING: Do not connect the black "BATTERY" wire to
the fuse panel or tie into accessory wiring. Connecting
to existing wiring may damage vehicle wiring and
cause trailer brake failure.

FOR TOW VEHICLES EQUIPPED WITH FACTORY TRAILER
TOWING PACKAGES: Wire per tow vehicle
manufacturer's instructions.

NOTE: Make sure that the tow vehicle's Brake Control
Battery Feed circuit is capable of carrying enough
current to supply trailer brake requirements (check tow
vehicle manu- facturer's instructions and trailer brake
manufacturer's information). If the circuit does not meet
the trailer's requirements, wire directly to the battery per
steps 1

through 7.

FOR TOW VEHICLES WITHOUT FACTORY TRAILER
TOWING PACKAGES:
1. Disconnect the tow vehicle's negative (-) battery cable.

2. Mount a 30 Amp auto-reset circuit breaker as close to the
positive (+) battery terminal as possible. Using 10 Ga.
stranded wire and crimp type ring terminals connect the
"BATT" side of the circuit breaker to the positive battery ter-
minal.
NOTE: When passing wire through sheet metal always go
through an existing grommet, add a grommet or use
silicone rubber to insulate the wire from the hole

3. Feed one black and one white, 10 Ga. stranded wire from
the Brake Control location to the tow vehicle's battery area.

4. Connect the black wire to the "AUX" side of the circuit
breaker with a ring terminal.

5. Connect the white wire to the negative battery post with a
ring terminal.

6 Attach the Control's black "BATTERY +" wire to the wire
(black) connected to the "AUX" side of the circuit breaker
using a butt connector.

7. Connect the control's white "GROUND" wire to the wire
(white) leading from the negative battery terminal with
another butt connector.

IMPORTANT:

A brake control that is not properly grounded

may operate intermittently or not at all. Recheck to make
sure that the white "GROUND -" wire is connected to the (-)
negative battery terminal and that the black "BATTERY +"
wire is attached to the (+) positive battery terminal.

8.

For tow vehicles other than 1989-91 Ford E and F

series trucks and vans:

Determine which side of the stoplight switch is the cold side.
To determine the cold side probe the terminals of the switch
with a test light until one is found that is only on when the
brake pedal is depressed.

Using the wire tap provided, splice the brake control's red
"STOPLIGHT" wire to the attached to the cold side of the
stoplight switch as determined above.

For 1989-91 Ford E and F series trucks and vans with

anti-lock brakes:

Find the crescent shaped connector located on the steering
column (turn signal harness). The connector has two rows of
wires, one row has four wires (inside row) the other has
seven.

The wire needed is the light green wire, second in from the
row of seven (see wiring diagram above).

Using the wire tap provided, splice the brake control's red
"STOPLIGHT" wire to the light green wire.

9. Secure all loose wires with cable ties so that they will not
be damaged and reconnect battery. See vehicle's owners
manual for special re-connectioninstructions.

10. Test Installation:
Without a trailer connected, push the brake pedal. A single .
(decimal point) should light up on the Display.
If the decimal point does not light or if OL or Er is shown go
to the Trouble Shooting section.

BENCH TEST INSTRUCTIONS

1. Wire as shown at right
Set the Output control to maximum (+) and set the Sync control
to minimum (-).

NOTE: If at any time during the bench test, the display shows
OL make sure that the blue "BRAKE" wire is not shorted to the
"-" battery terminal or the white "BATTERY -" wire.

If at any time, the display shows

Er

return the unit to your

Cequent dealer for further evaluation.

2. Test "Standby Condition"
Hold the red "STOPLIGHT" wire on the "+" battery terminal. The
display should show a single . (decimal point). This indicates
correct wiring and that the control is ready.

Disconnect the red "STOPLIGHT" wire from the battery

3. Test Brake Pedal Activation
Firmly ground the light bulb to the "-" terminal of the battery.
Re-attach the red "STOPLIGHT" wire to the "+" battery
terminal.
The display should step up to 10 and the bulb should start
out dim and slowly get brighter (unhook and re-attach the
red wire as many times as necessary to confirm this)

With the red wire still hooked up, slowly move the Output
Control down to (-). The display should count down to 0 and
the bulb should dim and go off.
Slowly move the Output Control back up to (+), the Display
should go back to 10 and the bulb should return to full
brightness.

Slowly move the Sync Control to maximum (+). The
display should change to Sync mode and count up to 9

Disconnect and reconnect the red wire. The bulb should
light brightly with no delay and the Display should read 10.

Disconnect the red wire.

4. Test Manual Activation
With the Output Control still set at maximum, slowly activate
the Manual Control button.

The bulb should start to dim and get brighter and the dis-

play should count up to 10 as the Manual Control is
pushed.

While holding the Manual Control all the way in, rotate
the

Output Control up and down. As the output changes the

bulb should go bright and dim and the display should
read 0 to

10.

5. Defective Unit
If the Brake Control unit does not function as described,
return it for service or replacement.

1. Determine a suitable mounting location.

A) The unit must be mounted securely to a solid surface.
B) The unit must be easily reached by the driver.
C) The area behind the mounting location must be clear so
nothing will be damaged when drilling.

WIRING

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