Equus 8468 - 2-5/8 Voltmeter - Manual

INSTALLATION INSTRUCTIONS
MECHANICAL GAUGES/KITS
PREPARATION FOR INSTALLATION 1
© 2004 IEC - All Rights Reserved MRP #93-0010 Rev. B
VOLTMETER
OIL PRESSURE
TEMPERATURE
This section must be read and followed before installation of the gauge is
performed.
1. Read instructions completely before installation.
2. Install gauges only when engine is cool and ignition is off.
3. Make sure all necessary tools, materials, and parts are on hand.
4. Always read the vehicle's service manual and follow it’s safety precautions
before any test or service procedure is performed.
5. Disconnect negative (-) battery cable before installing gauges (do not for-
get to reconnect battery after installation is complete).
6. Locate the vehicle's oil pressure and/or coolant temperature sending units,
and verify the vehicle's sending unit port thread size is compatible with the
thread size on the gauge's sending unit and/or the supplied adapters. DO
NOT DRILL ANY HOLES IN DASH BEFORE ENSURING COMPATIBILITY.
See the following notes.
NOTES:
■ If the vehicle's original temperature sending unit is used by the computer
for engine control functions, DO NOT REPLACE. Consult the dealer (or a
professional) to determine if the new sending unit can be installed in an
alternate location on the engine. If no suitable location is found, this gauge
is not suitable for your application. (See below for oil pressure gauge.)
■ For oil pressure gauges, a T-fitting (sold separately) may be used to
accommodate the new gauge sending unit, and to keep the vehicle's
original sender operational.
7. Determine a mounting location for the gauge. Choose a location that does
not impair visibility or interfere with driving. Check behind the mounting
location for any wiring or components before drilling. Also take into consid-
eration the routing and length of the lead wires, nylon tubing and/or the cap-
illary tube from gauge to engine sender port.
WARNING: Follow vehicle manufacturer’s service recommendations.
Check and maintain the vehicle’s engine regularly (cooling system level
and condition, oil system level and condition, charging system condition,
etc.). Never rely on the gauges as the ONLY means of protection.
NOTE: For information on optional mounting configurations and mounting
hardware, visit us on the web at www.iequus.com
A. PANEL INSTALLATION
For On-Dash or Under-Dash mounting (panels
are optional with some gauge models and
must be purchased separately).
1. Determine mounting location (see section 1,
step 7).
2. Using gauge panel as a template, mark loca-
tions for screws.
3. Drill small holes for the screws.
4. Mount panel in place and secure with screws
and flat washers provided.
MOUNTING AND INSTALLATION 2 B. IN-DASH MOUNTING
1. Using a hole template, cut out a 1-1/2", 2" or 2-5/8" (3.81 cm, 5.08 cm, or 6.67
cm) hole, as necessary, through the dashboard.
2. Using a round file, smooth out the rough edges around the drilled hole.
C. INSTALLING GAUGE INTO GAUGE
PANEL OR IN-DASH
1. Insert gauge through front of panel or hole in
dashboard, as applicable.
2. Hold gauge case and rotate gauge, as need-
ed, until gauge dial face is properly posi-
tioned in front of dashboard/panel. Secure
gauge in place.
3. Tighten locking ring on gauge in clockwise
direction until gauge is tight against dash-
board/panel. Tighten locking ring HAND
TIGHT ONLY.
Figure 1. Gauge Panel
LOCKING RING
Figure 2. Gauge Equipped
with Locking Ring
NOTE: Depending on the model of gauge, backlighting color may be changed
to either red, green or blue by installing the optional color filter over the bulb
(not available for all gauge kits).
1. Insert the light bulb and socket assemblies
into the light receptacles on the back of the
gauge and press firmly to snap/lock into
place.
NOTE: Wire for gauge lights must be pur-
chased separately. Use size 18-20 AWG
stranded copper wire.
GAUGE LIGHT INSTALLATION AND CONNECTION 3
2. Splice the RED or WHITE wire from the gauge light(s) into the vehicle's
lighting circuit, between the dimmer control switch and the dash lights (con-
sult the vehicle's service manual for proper wire).
3. Connect light socket BLACK wire to a good chassis ground.
4. Insulate all connections with shrink tubing to prevent shorting.
WARNING: For bulb replacement use only part # 161 Instrument/
Indicator wedge type bulbs available at most auto parts stores. DO
NOT USE ANY OTHER PART NUMBER SINCE THE HEAT PRODUCED
BY A HIGHER WATTAGE BULB WILL MELT THE GAUGE CASE AND
CREATE A FIRE HAZARD.
BULB AND
SOCKET ASSEMBLY
OPTIONAL COLOR
FILTER
Figure 3. Light Bulb Installation
GAUGE CONNECTION 4
A. VOLTMETER
1. Using a multimeter or test light, find a 12-volt positive (+) location that is hot
ONLY when the ignition key is in the "ON" position (possible locations: fuse
panel accessory, radio and cigarette lighter circuits).
NOTE: Wire must be purchased separately. Use 18-20 AWG stranded cop-
per wire.
2. Crimp or solder ¼" (6.35 mm) female spade/ring terminals (included) on
one end of voltmeter positive (+) and negative (-) wires, and connect wires
to voltmeter positive (+) and negative (-) terminal ring/spade posts, as appli-
cable.
3. Connect voltmeter positive (+) wire to an accessory location or line as
described in step 1.
4. Connect voltmeter negative (-) wire to a good bare metal chassis ground on
the vehicle.
NOTE: To prevent electrical shorts, route wires away from sharp edges and
parts. Insulate all splices with shrink tubing.
5. Reconnect the negative (-) battery
cable. With the ignition switch in
the "ON" position and engine NOT
RUNNING, voltmeter should read
between 12.5 and 13.2 volts. A
lower reading indicates a low bat-
tery, a poor connection or
dirty/defective battery cables.
6. Start and run engine. Voltmeter
should read between 13.3 and
15.2 volts (specifications vary,
consult your vehicle's service
manual for proper specifications). A lower reading can indicate a faulty volt-
age regulator, slipping belts, faulty alternator/battery, a poor connection or
excessive loads. A higher reading can indicate a faulty voltage regulator.
NOTE: If voltmeter fails to read, make sure positive (+) and negative (-)
connections on rear of gauge match. If voltmeter still fails to read, recheck
and tighten all connections.
VOLT METER
GAUGE
SWITCHED +12V
(FUSE BOX)
CHASSIS
GROUND
RED
BLACK
Figure 4. Voltmeter Connections
2.0
2.0