Harbor Freight Tools NITROUS 98475 - Manual (Page 2)

SKU 98475 For technical questions, please call 1-800-444-3353. Page 2
assemblY InstructIons
read the entIre Important
saFetY InFormatIon section at the
beginning of this document including
all text under subheadings therein
before set up or use of this product.
setup
A round 2-1/16” wide hole with at least 2-1/2” 1.
clearance behind is needed to install this
gauge.
At least 18 AWG stranded copper wire must
2.
be purchased for the installation of this
gauge.
Some vehicles with air bags or other systems
3.
may require precautions before disconnect-
ing the battery. Consult your vehicle’s service
manual.
Route and secure wires as needed to attach
4.
the Gauge and sender to the desired area;
avoid sharp edges and hot spots.
Installation
Disconnect negative (-) vehicle battery cable 1.
according to manufacturer’s instructions.
Reconnect when installation completed.
Wire Oil Pressure Gauge according to dia-
2.
gram shown below in Figure 1.
note: If Sensor is wired differently, do not install
this Gauge. Do not disconnect wires if sensor
is already connected to other wiring. Consult
a mechanic.
Green wires goes to oil pressure sensor unit.
3.
Connect oil pressure sensor unit via oil filter
block sandwich or other means of plumb-
ing. Use teflon tape or sealant on threads to
prevent oil leakage.
Wiring:
4.
red • Wire: Connects to a switched 12V
power source that turns on and off with
vehicle’s ignition switch.
cautIon: It is recommended that a inline fuse
(1Amp/3AG) be installed before connecting
to the 12V ignition system.
green • Wire: Connects to oil pressure
sensor unit. WarnIng! do not touch this
wire to positive source.
orange
• and WHIte Wires: Connect to
the 12V dashboard lights or other switch.
black
• Wire: Connects to a clean, or with
good connection, engine ground (-).
Install the meter into the hole. Attach bracket 5.
onto the back of the meter and tighten.
Reconnect the battery according to the ve-
6.
hicle service manual. Verify that there are no
short circuits before reconnecting.
Ensure that the pressure line wiring has
7.
no leaks and is not near any parts that will
get hot during operation. Check for loose
strands of wire and direct contact with
grounded components. Use a multimeter with
a continuity function to help verify that there
are no shorts to ground.
Start the vehicle and turn the dashboard
8.
lights on. LED should light up. Be ready to
disconnect battery if arcing or sparking oc-
curs at the meter.
To change the color of the LED light, push
9.
the button on the face of the gauge.
record serial number Here:
note: If product has no serial number, record month and year of purchase instead.
note: No replacement parts are available.
Ignition
dashboard light
dashboard light
Figure 1