Lokar Emergency Brake Warning Switch Kit - Manual

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General Installation Notes:
Please read instructions completely before beginning installation. If
you have any questions please call.
Before starting installation, scotch vehicle tires to avoid accidental
movement of the vehicle. Do not attempt to install this product
while the engine is running. Disconnect negative battery cable
before beginning installation.
Make sure the engine, transmission, body and frame are properly
grounded.
Refer to Fig. 1 and Fig. 2 for the component names.
Installation:
Step 1: Remove the E-clip from the new warning indicator pin, but leave
the warning indicator trigger in place on the new pin. Verify that the
warning indicator trigger is facing the correct direction on the new
pin, as shown in Fig. 3. Make sure the emergency brake handle is in
the fully released position (all the way down). Remove the E-clip from
the gear dog pin on the handle.
Step 2: This step will be easier with a helper. Depress the release button on
the end of the emergency brake handle and hold it down. Hold the
gear dog in place with your fingers or with a pair of pliers, and pull
the existing gear dog pin out of the handle. Install the new warn-
ing indicator pin with the trigger from the left side of the handle as
shown in Fig. 4. DO NOT let go of the release button while the pin
is removed, or the gear dog will become misaligned. Once the new
warning indicator pin is installed all the way through the handle, let
go of the release button.
Make sure the warning indicator trigger is positioned correctly and
that the warning indicator pin is fully seated in the emergency brake
handle. Install the new E-clip on the warning indicator pin.
Step 3: Install the micro switch onto the emergency brake gear plate using
the supplied #4-40 x 3/4" socket head cap screws and nylock nuts
as shown in Fig. 5. Adjust the position of the micro switch so that
the red button on the micro switch is depressed by the warning indi-
cator trigger when the emergency brake handle is all the way down.
Wiring:
NOTE: The wiring instructions below are for a generic application. Your vehicle's
wiring harness or your indicator light/buzzer may require additional components
or wiring connections.
If you are not familiar with electrical principles and automotive wiring fundamentals,
please consult a professional.
An emergency brake warning indicator circuit can be wired several different
ways. It can be wired so that the micro switch provides the power for the
indicator, or so that the micro switch provides the ground for the indicator. See
Fig. 6 for illustrations of both of these wiring options.
The circuit can also be wired so that the micro switch provides the power or
ground signal for a relay. A relay is usually not required for a simple indica-
tor light or buzzer, and the almost unlimited variety of relay designs makes it
impractical to cover those in these instructions.
NOTE: Disconnect negative battery cable before making any wiring connections or
modifications!
Step 4: Use Fig. 6 to determine which way the emergency brake warning indica-
tor circuit is wired on your vehicle, or which way you want the circuit to
be wired if you don't already have an existing circuit. If you are adding
a new circuit to the vehicle for the emergency brake warning indicator,
make sure the 12 volt source only supplies power with the ignition key
turned on (switched power). Also verify that the circuit is protected by a
properly-sized fuse or circuit breaker.
Step 5: When making the connections below, use a wire crimping tool to crimp
the supplied female spade connectors onto the wires at the micro
switch.
If the circuit is designed for the micro switch to provide power to the
indicator light/buzzer (Power Switch type in Fig. 6), install/connect a
fused, switched 12 volt power wire to the common (COM) terminal on
the micro switch. Install/connect a wire from the normally closed (NC)
terminal on the micro switch to the input/power side of your indicator
light/buzzer. Connect the ground side of your indicator light/buzzer to a
good vehicle ground (this connection may already exist in your vehicle
wiring harness).
If the circuit is designed for the micro switch to provide the ground
(Ground Switch type in Fig. 6), install/connect a fused, switched 12 volt
power source to the input/power side of your indicator light/buzzer (this
connection may already exist in your vehicle wiring harness). Install/
connect a wire from the ground side of your indicator light/buzzer to
the common (COM) terminal on the micro switch. Install/connect a wire
from the normally closed (NC) terminal on the micro switch to a good
vehicle ground.
The normally open (NO) terminal on the micro switch will not be used.
See Fig. 7 for a completed installation.
10924 Murdock Dr. • Knoxville, TN 37932
TOLL FREE 1-877-469-7440 • (865) 966-2269 • FAX (865) 671-1999 • [email protected] • www.lokar.com
®
Emergency Brake Warning Switch Kit Installation Instructions
Emergency Brake Warning Switch Kit
Installation Instructions
INS0114 Rev. 10/10/12 RPD 09/16/13 Page 1 © 2012 Lokar, Inc.
Fig. 1
Fig. 2
E-Clip
Micro Switch
Release
Button
Gear Plate
Gear
Dog Pin
Gear
Dog Pin
Gear Dog
Warning
Indicator
Trigger
Female Spade
Connectors
#4-40 x 3/4" Socket
Head Cap Screws
and Nylock Nuts
Warning
Indicator
Pin