Flex Drive Compression Tester - Harbor Freight Tools
Flex Drive Compression Tester - Harbor Freight Tools
Flex Drive Compression Tester - Harbor Freight Tools
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<strong>Flex</strong> <strong>Drive</strong> <strong>Compression</strong> <strong>Tester</strong><br />
Item 92697<br />
Read this material before using this product.<br />
Failure to do so can result in serious injury.<br />
SAVE THIS MANUAL.<br />
When unpacking, make sure that the product is intact and undamaged.<br />
If any parts are missing or broken, please call 1-800-444-3353 as soon as possible.<br />
Visit our website at: http://www.harborfreight.com<br />
Copyright © 2005 by <strong>Harbor</strong> <strong>Freight</strong> <strong>Tools</strong> ® . All rights reserved. No portion of this manual or any artwork contained herein may be reproduced in any shape<br />
or form without the express written consent of <strong>Harbor</strong> <strong>Freight</strong> <strong>Tools</strong>. Diagrams within this manual may not be drawn proportionally. Due to continuing<br />
improvements, actual product may differ slightly from the product described herein. <strong>Tools</strong> required for assembly and service may not be included.<br />
Manual Revised 11g
Specifications<br />
Pressure Scale 0-300 PSI<br />
Gauge Accuracy ± 2%<br />
Air Release Type Push Button<br />
Hose Size<br />
1/4 IN. D x 12 IN. L<br />
Hose Threads Dual, M14-1.25 and M18-1.5<br />
Extension Thread M14-1.25<br />
Save This Manual<br />
Keep this manual for the safety warnings and<br />
precautions, assembly, operating, inspection,<br />
maintenance and cleaning procedures. Write the<br />
product’s serial number in the back of the manual near<br />
the assembly diagram (or month and year of purchase<br />
if product has no number). Keep this manual and the<br />
receipt in a safe and dry place for future reference.<br />
Important Safety Information<br />
WARNING Read all safety warnings<br />
and instructions. Failure to follow the warnings<br />
and instructions may result in fire and/or<br />
serious injury.<br />
Save all warnings and instructions<br />
for future reference.<br />
1. Use the <strong>Compression</strong> <strong>Tester</strong> only in<br />
well‐ventilated areas. A running gasoline/diesel<br />
engine produces carbon monoxide.<br />
Carbon monoxide is a colorless, orderless, gas<br />
that, if inhaled, can cause serious injury or death.<br />
2. When warming up an engine in preparation<br />
for compression testing, make sure the<br />
vehicle’s transmission is placed in park<br />
(or neutral for a manual transmission)<br />
and the emergency brake is on.<br />
3. Keep hands and fingers away from moving<br />
parts and hot parts of vehicle’s engine.<br />
4. Do not exceed the maximum pressure<br />
capacity of this tester (300 PSI).<br />
5. Stay alert, watch what you are doing and use<br />
common sense when using the tester. Do not use<br />
while you are tired or under the influence of drugs,<br />
alcohol or medication. A moment of inattention while<br />
operating testers may result in serious personal injury.<br />
7. Do not overreach. Keep proper footing and<br />
balance at all times. This enables better control<br />
of the tester in unexpected situations.<br />
8. Dress properly. Do not wear loose clothing or<br />
jewelry. Keep your hair, clothing and gloves away<br />
from hot or moving parts. Loose clothes, jewelry<br />
or long hair can be caught in moving parts.<br />
9. Maintain the <strong>Compression</strong> <strong>Tester</strong>. Check for<br />
misalignment or binding of parts, breakage<br />
of parts and any other condition that may<br />
affect the tester’s operation. If damaged,<br />
have the tester repaired before use.<br />
10. Have your tester serviced by a qualified<br />
repair person. This will ensure that the<br />
safety of the tester is maintained.<br />
11. Maintain labels and nameplates on the tester.<br />
These carry important safety information.<br />
If unreadable or missing, contact<br />
<strong>Harbor</strong> <strong>Freight</strong> <strong>Tools</strong> for a replacement.<br />
12. This product is not a toy.<br />
Keep it out of reach of children.<br />
13. People with pacemakers should consult their<br />
physician(s) before use. Being near a running engine<br />
can be an issue. Electromagnetic fields in close<br />
proximity to heart pacemaker could cause pacemaker<br />
interference or pacemaker failure. In addition, people<br />
with pacemakers should:<br />
• Avoid operating alone.<br />
• Use caution when near the coil, spark plug cables,<br />
or distributor of a running engine.<br />
• Turn the vehicle engine off if adjustments<br />
are to be made to the distributor.<br />
14. WARNING: The brass components of this<br />
product contain lead, a chemical known to the<br />
State of California to cause birth defects (or other<br />
reproductive harm).<br />
(California Health & Safety code § 25249.5, et seq.)<br />
15. The warnings, precautions, and instructions<br />
discussed in this instruction manual cannot<br />
cover all possible conditions and situations<br />
that may occur. It must be understood by the<br />
operator that common sense and caution are<br />
factors which cannot be built into this product,<br />
but must be supplied by the operator.<br />
SAVE THESE<br />
INSTRUCTIONS.<br />
6. Always wear ANSI-approved eye protection. Safety<br />
equipment such as a dust mask, non-skid safety<br />
shoes, a hard hat, or hearing protection used for<br />
appropriate conditions will reduce personal injuries.<br />
Page 2 For technical questions, please call 1-800-444-3353. SKU 92697
Operating Instructions<br />
Read the ENTIRE IMPORTANT<br />
SAFETY INFORMATION section at the<br />
beginning of this manual including<br />
all text under subheadings therein<br />
before set up or use of this product.<br />
1. If needed, attach the M14 - 1.5 Extension<br />
to the end of the hose.<br />
M14-1.25<br />
TO PREVENT SERIOUS INJURY AND DEATH:<br />
Avoid carbon monoxide poisoning.<br />
Do not run a gasoline or diesel engine in an<br />
enclosed garage or other poorly-ventilated area.<br />
Note: Performing a compression test requires the<br />
work of two individuals; one person to operate<br />
the vehicle’s ignition switch while the other<br />
person operates the <strong>Compression</strong> <strong>Tester</strong>.<br />
Note: Good engine cylinder compression will be indicated<br />
by a high initial reading, a progressive buildup, then a<br />
final maximum reading. Poor engine cylinder compression<br />
will be indicated with a low initial reading and a slow<br />
buildup to the final maximum reading. The cylinder<br />
readings should be within 10% of each other. Check<br />
vehicle service manual for acceptable pressure ranges.<br />
Note: These are typical instructions only. Different<br />
engines may require different testing and preparation<br />
procedures. CONSULT AND FOLLOW VEHICLE<br />
SERVICE MANUAL INSTRUCTIONS.<br />
Note: Vehicle’s battery must be fully<br />
charged before this test.<br />
M14-1.25<br />
M18-1.5<br />
Figure B: Hose End and Extension Thread Sizes<br />
2. Prepare the engine for compression testing<br />
by starting it and allowing it to warm up<br />
to its normal operating temperature.<br />
3. Switch off the ignition.<br />
4. Disconnect all wires from the ignition coil, and<br />
remove all of the spark plugs, making note of which<br />
spark plug wires go to each spark plug location.<br />
5. Insulate coil wires or route them away from<br />
each other and all metal surfaces.<br />
6. Connect the <strong>Compression</strong> <strong>Tester</strong> to<br />
the first cylinder of the engine.<br />
7. With the throttle pedal depressed completely,<br />
crank the engine for at least eight revolutions.<br />
While cranking the engine, observe and<br />
record the maximum reading on the<br />
Gauge of the <strong>Compression</strong> <strong>Tester</strong>.<br />
M14-1.25<br />
Extension<br />
Hose End<br />
Gauge<br />
Air Release<br />
Button<br />
8. Once the maximum reading has been<br />
recorded, discontinue cranking the engine.<br />
9. Press the Air Release Button on the<br />
<strong>Tester</strong> to release air pressure.<br />
10. Remove the <strong>Compression</strong> <strong>Tester</strong><br />
from the first engine cylinder.<br />
11. Repeat steps 6-10 for the remaining engine cylinders.<br />
12. When finished, reinstall the spark plugs and<br />
reconnect all wires. Clean tester, then store<br />
it indoors, out of children’s reach.<br />
Figure A: <strong>Tester</strong> Components<br />
SKU 92697<br />
For technical questions, please call 1-800-444-3353.<br />
Page 3
Maintenance and Servicing<br />
Procedures not specifically explained<br />
in this manual must be performed<br />
only by a qualified technician.<br />
Record Product’s Serial Number Here:<br />
<br />
Note: If product has no serial number, record<br />
month and year of purchase instead.<br />
Replacement parts are not available for this item.<br />
TO PREVENT SERIOUS INJURY<br />
FROM TOOL FAILURE:<br />
Do not use damaged equipment. If abnormal noise or<br />
vibration occurs while using the <strong>Compression</strong> <strong>Tester</strong>,<br />
have the problem corrected before further use.<br />
1. BEFORE EACH USE, inspect the general condition<br />
of the tool. Check for broken, cracked or bent parts,<br />
loose or missing parts, any other condition that may<br />
affect its safe operation. If a problem occurs, have the<br />
problem corrected before further use.<br />
Do not use damaged equipment.<br />
2. AFTER USE, wipe external surfaces of the tool<br />
with a clean cloth and mild detergent, then store<br />
indoors, out of reach of children. Do not use<br />
solvents or immerse the Gauge in any liquid.<br />
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353