For technical questions and replacement parts, please call 1-800-444-3353.
Page 2
Specifications
:noitcurtsnoC
:gnittiFeguaGTPN81-"4/1:eziSesoHgnoL"42x"4/1
lanoitiddA
:sgnittiF
sgnittiFssarB
,esoHrebbuR,esaCcitsalP
TPN81-"4/1xTPN72-"8/1
TPN81-"8/3xTPN72-"8/1
:elacSerusserP
:thgieWteN.bL7.0
ISP001-0
RAB7.0-0
Note: Accuracy of the Gauge is ± 2%.
Save This Manual
You will need the manual for the saf ety warnings and precautions, assembly instructions, operating and maintenance procedures, parts list and diagram. Keep your
invoice with this manual. Write the invoice number on the inside of the front cover.
Keep the manual and in voice in a saf e and dry place for future ref erence.
Safety Warnings and Precautions
WARNING: When using tool, basic safety precautions should al ways be followed
to reduce the risk of personal injury and damage to equipment.
Read all instructions before using this tool!
1.Keep work area clean. Cluttered areas invite injuries.
2.Observe work area conditions. Do not use machines or power tools in damp
or wet locations. Don’t expose to rain. Keep work area well lighted. Do not
use electrically powered tools in the presence of flammable gases or liquids.
Be aware of the inherent dangers of working on a gasoline engine.
3.Keep children away. Children must never be allowed in the work area. Do
not let them handle machines, tools, or extension cords.
4.Store idle equipment. When not in use, tools must be stored in a dry location
to inhibit rust. Always lock up tools and keep out of reach of children.
5.Use the right tool for the job. This oil pressure tester is intended for use on
automotive and truck engines. Do not modify this tool and do not use this tool
for a purpose for which it was not intended.
6.Dress properly. Do not wear loose clothing or jewelry as they can be caught
in moving parts. Protective, electrically nonconductive clothes and nonskid
footwear are recommended when working. Wear restrictive hair covering to
contain long hair. W earing a long-sleev e shirt and long pants are recommended
while working.
7.Use safety equipment for your protection. Always wear ANSI approved impact
safety glasses underneath a full face shield along with heavy work gloves when
working on gasoline engines. Be sure to work in a well-ventilated place.
SKU 92687
For technical questions, please call 1-800-444-3353
REV 05/05
Page 2
Page 3
8.Carbon Monoxide Warning: Guard against e xposure to Carbon Monoxide, which
is an odorless, colorless gas produced by gasoline engines. Carbon Monoxide
exposure may cause serious injury or death.
9.Do not overreach. K eep proper footing and balance at all times . Do not reach
over or across running machines. Do not allow this tester to interfere with the
moving parts of a running engine.
10. Maintain tools with care. K eep tester threads sharp and clean for better and
safer performance. Follow instructions for maintenance and changing
accessories. The gauge hose and adapters must be kept clean, dry, and free
from oil and grease at all times.
11. Stay alert. Watch what you are doing, use common sense. Do not operate
any tool when you are tired.
12. Check for damaged parts. Before using any tool, any part that appears
damaged should be carefully checked to determine that it will operate properly
and perform its intended function. Any part that is damaged should be properly
repaired or replaced by a qualified technician. Do not use the tester if it leaks
or the gauge does not function properly.
13. Do not operate tool if under the influence of alcohol or drugs. Read warning
labels on prescriptions to determine if your judgment or reflexes are impaired
while taking drugs. If there is any doubt, do not operate the tool.
14. Maintenance. F or your saf ety, service and maintenance should be performed
regularly by a qualified technician.
WARNING: The brass components of this product contain lead, a chemical
known to the State of California to cause birth defects (or other reproductive
harm). (California Health & Safety code § 25249.5,
WARNING: The warnings, cautions, and instructions discussed in this instruction manual cannot cover all possible conditions and situations that may occur .
It must be understood by the operator that common sense and caution are factor s
which cannot be built into this product, but m ust be supplied by the operator.
et seq.
)
Unpacking
When unpacking, check to make sure the f ollowing parts are included.
Oil Pressure Gauge with Extension Hose
(2) Adapters
If any parts are missing or broken, please call Harbor Freight Tools at the number
on the cover of this manual.
SKU 92687
For technical questions, please call 1-800-444-3353
Page 3
Page 4
Operation
Excessively low or high oil pressure can indicate needed repair or maintenance on
your engine. Refer to your v ehicle owner’s manual f or recommended pressures. See
the pressure charts on pages 5-10, also.
WARNING: If you are not e xperienced in doing this type of diagnostic test, the
work should be done by a qualified technician.
Install/remove the oil pressure tester only while the engine is
stopped and the oil is cool.
1.Before beginning work, the vehicle's tires must be securely blocked, the parking
brake must be set, and the transmission must be in neutral.
2.NOTE: The oil pressure/temperature sensor is usually located on or near the oil
pan at the lower part of the engine. See your owner’s manual or shop manual
(not included) for specific information about your vehicle. Clean the area around
the oil pressure/temperature sensor using compressed air. It is important to
prevent foreign materials from getting into the oil system once the sensor is
removed. Place a pan under the sensor to catch any oil that might run out.
3.Remove the oil pressure/temperature sensor, and thread the Gauge fitting or
one of the Adapter fittings into the opening. NOTE: Be prepared to immediately
fit the gauge or adapter fittings into the opening left after the sensor is removed
to reduce oil loss. Tighten the gauge fitting in securely.
4.Check the oil lev el and refill it to the full mark. When the tester is fully installed
and it is safe to do so, start the vehicle’s engine. NOTE: The engine must be at
normal operating temperature, and at the indicated engine speed (RPM) to develop
correct readings. You may need a special device or assistant to maintain the
engine RPM at the desired setting while taking a reading.
WARNING: W ear appropriate work clothes, heavy work gloves and ANSI appro ve d
eye protection when working on a hot engine. Keep hands away from the fan and
other moving parts, and protect yourself from electrical shock or burns. Be aware that
working on an automotive or truck engine is inherently dangerous, and suitable precautions must be taken.
5.Find your vehicle in the attached charts, and set the engine speed at the indicated
RPM. Note the reading on the Oil Pressure Tester , and compare to the expected
reading on the chart.
6.Turn off the engine and let cool. Remov e the Oil Pressure Tester .
7.Replace the oil pressure/temperature sensor . Tighten securely. Replace any lost oil,
and dispose of spilled oil properly . Check y our local environmental regulations for proper
disposal.
Maintenance
Keep this tool clean and free from dirt, grease or grit. Store it in its case when not in
use. P eriodically check the threads f or damage. Wipe any grease, oil or dirt from the
gauge before storing.
SKU 92687
For technical questions, please call 1-800-444-3353
Page 4
Page 5
Harbor Freight T ools is not responsib le for typographical error s nor for
any damage caused as a result of using these reference charts.
NOTE: The following charts are pro vided as a reference only . Always chec k with
the vehicle manufacturer’s service manual or authoritative handbook before
testing your engine, information in such documentation SUPERSEDES this
chart.