Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly, operating,
inspection, maintenance and cleaning procedures. Write the product’s serial number in the back of the manual
near the assembly diagram (or month and year of purchase if product has no number). Keep this manual and
the receipt in a safe and dry place for future reference.
pistol grip air shear
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ITEM 98580
11j
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-800-444-3353 as soon as possible.
©
®
Copyright 2011 by Harbor Freight Tools . All rights reserved.
No portion of this manual or any artwork contained herein may be reproduced in
any shape or form without the express written consent of Harbor Freight Tools.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly and service may not be included.
Read this material before using this product.
Failure to do so can result in serious injury.
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personal Safety
1. Stay alert. Watch what you are doing and
use common sense when operating the tool.
Do not use the tool while tired or under the
influence of drugs, alcohol, or medication.
A moment of inattention while operating the
tool increases the risk of injury to persons.
5. Do not overreach.
keep proper footing and balance at all times.
Proper footing and balance enables better
control of the tool in unexpected situations.
6.
use safety equipment. A dust mask,
non-skid safety shoes and a hard hat
must be used for the applicable
conditions. Wear heavy-duty work
gloves during use.
2. Dress properly. Do not wear loose
clothing or jewelry. contain long hair.
keep hair, clothing, and gloves away from
moving parts. Loose clothes, jewelry, or long
hair increases the risk of injury to persons as
a result of being caught in moving parts.
7.
8.
always wear eye protection.
Wear ANSI-approved safety goggles.
3. avoid unintentional starting. Be sure the switch
is off before connecting to the air supply.
Do not carry the tool with your finger on the switch or
connect the tool to the air supply with the switch on.
always wear hearing protection
when using the tool.
Prolonged exposure to high intensity
noise is able to cause hearing loss.
4. Remove adjusting keys and wrenches
before turning the tool on. A wrench or a
key that is left attached to a rotating part of the
tool increases the risk of personal injury.
tool use and care
1. Use clamps or another practical way to secure
and support the workpiece to a stable platform.
Holding the work by hand or against the body is
unstable and is able to lead to loss of control.
5. Store the tool when it is idle out of reach
of children and other untrained persons.
A tool is dangerous in the hands of untrained users.
6. maintain the tool with care. Keep a cutting
tool sharp and clean. A properly maintained
tool, with sharp cutting edges reduces the
risk of binding and is easier to control.
2. Do not force the tool. Use the correct tool for the
application. The correct tool will do the job better
and safer at the rate for which the tool is designed.
3. Do not use the tool if the switch does not turn the 7. check for misalignment or binding of moving
tool on or off. Any tool that cannot be controlled
with the switch is dangerous and must be repaired.
parts, breakage of parts, and any other condition
that affects the tool's operation. If damaged,
have the tool serviced before using. Many accidents
are caused by poorly maintained tools.
4. Disconnect the tool from the air source
before making any adjustments, changing
accessories, or storing the tool. Such preventive
safety measures reduce the risk of starting the
tool unintentionally. Turn off and detach the air
supply, safely discharge any residual air pressure,
and release the throttle and/or turn the switch to
its off position before leaving the work area.
There is a risk of bursting if the tool is damaged.
8. use only accessories that are identified by the
manufacturer for the specific tool model. Use of
an accessory not intended for use with the specific
tool model, increases the risk of injury to persons.
Item 98580
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Service
1. Tool service must be performed only
3. use only the lubricants supplied with the
by qualified repair personnel.
tool or specified by the manufacturer.
2. When servicing a tool, use only identical
replacement parts. use only authorized parts.
air Source
2. Never use oxygen, carbon dioxide, combustible
gases or any bottled gas as an air source
for the tool. Such gases are capable of
1.
never connect to an air source that is
capable of exceeding 200 psi.
Over pressurizing the tool may cause
explosion and serious injury to persons.
bursting, abnormal operation, breakage
of the tool or serious injury to persons.
Use only clean, dry, regulated compressed air at the
rated pressure or within the rated pressure range as
marked on the tool. Always verify prior to using the
tool that the air source has been adjusted to the rated
air pressure or within the rated air-pressure range.
SaVE thESE inStRuctiOnS.
Symbols and Specific Safety instructions
Symbol Definitions
Symbol
property or statement
Symbol
property or statement
No-load speed
National pipe thread, tapered
n
npt
o
Revolutions or reciprocation per minute
Pounds per square inch of pressure
Foot-pounds of torque
National pipe thread, straight
.../min
pSi
npS
WARNING marking
concerning Risk of Eye Injury.
Wear ANSI-approved eye protection.
ft-lb
WARNING marking concerning Risk of
Hearing Loss. Wear hearing protection.
Blows per minute
Bpm
cFm
ScFm
WARNING marking concerning
Risk of Respiratory Injury. Wear
NIOSH-approved dust mask/respirator.
Cubic Feet per Minute flow
Cubic Feet per Minute flow
at standard conditions
WARNING marking concerning
Risk of Explosion.
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Specific Safety instructions
1. The warnings and precautions discussed in this
manual cannot cover all possible conditions and
situations that may occur. It must be understood
by the operator that common sense and caution
are factors which cannot be built into this
3. Obey the manual for the air compressor
used to power this tool.
4. Install an in-line shutoff valve to allow
immediate control over the air supply in an
emergency, even if a hose is ruptured.
product, but must be supplied by the operator.
5. Use this tool with both hands only. Using tools
with only one hand can result in loss of control.
2. WARNING: Some dust created by power
sanding, sawing, grinding, drilling, and other
construction activities, contains chemicals
known [to the State of California] to cause
cancer, birth defects or other reproductive harm.
Some examples of these chemicals are:
• Lead from lead-based paints
6. Do not lay the tool down until it has come to
a complete stop. Moving parts can grab the
surface and pull the tool out of your control.
• Crystalline silica from bricks and cement or
other masonry products
• Arsenic and chromium from
chemically treated lumber
Your risk from these exposures varies, depending
on how often you do this type of work. To reduce
your exposure to these chemicals: work in a well
ventilated area, and work with approved safety
equipment, such as those dust masks that are
specially designed to filter out microscopic particles.
(California Health & Safety Code § 25249.5, et seq.)
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, et seq.)
Vibration precautions
This tool vibrates during use. Repeated or long-term
exposure to vibration may cause temporary or permanent
physical injury, particularly to the hands, arms and
shoulders. To reduce the risk of vibration-related injury:
2. Do not smoke during use. Nicotine reduces
the blood supply to the hands and fingers,
increasing the risk of vibration-related injury.
3. Wear suitable gloves to reduce the
vibration effects on the user.
1. Anyone using vibrating tools regularly or for an
extended period should first be examined by a
doctor and then have regular medical check-ups to
ensure medical problems are not being caused or
worsened from use. Pregnant women or people who
have impaired blood circulation to the hand, past
hand injuries, nervous system disorders, diabetes,
or Raynaud's Disease should not use this tool.
If you feel any symptoms related to vibration (such
as tingling, numbness, and white or blue fingers),
seek medical advice as soon as possible.
4. Use tools with the lowest vibration
when there is a choice.
5. Include vibration-free periods each day of work.
6. Grip tool as lightly as possible (while still keeping
safe control of it). Let the tool do the work.
7. To reduce vibration, maintain
tool as explained in this manual.
If abnormal vibration occurs, stop immediately.
SaVE thESE inStRuctiOnS.
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Functional Description
Specifications
Maximum Air Pressure
90 PSI
Cutting Capacity
Air Inlet
Up to 18 gauge sheet metal
1/4″ -18 NPT
Maximum Speed*
1800 SPM
Average Air Consumption 4 CFM @ 90 PSI
Recommended Hose Size 3/8″
Replacement Blades
Item 98948 (sold separately)
* Maximum speed at stated maximum air pressure.
Excess air pressure is hazardous and may cause
the tool to exceed stated maximum speed.
components and controls
Left Blade (32)
Right Blade (35)
Center Blade (34)
Trigger (24)
Figure 1
Air Inlet (29)
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initial tool Set up/assembly
Read the EntiRE impORtant SaFEty inFORmatiOn section at the beginning of this
manual including all text under subheadings therein before set up or use of this product.
note: For additional information regarding the parts listed in the following pages,
refer to the Assembly Diagram near the end of this manual.
note: This air tool may be shipped with a protective plug covering the air inlet. Remove this plug before set up.
air Supply
tO pREVEnt SERiOuS injuRy FROm ExplOSiOn:
use only clean, dry, regulated, compressed air to power this tool.
Do not use oxygen, carbon dioxide, combustible gases,
or any other bottled gas as a power source for this tool.
1. Incorporate a filter, regulator with pressure gauge,
oiler, in-line shutoff valve, and quick coupler for
best service, as shown on Figure A on page 8
and Figure B on page 9. an in-line shutoff
ball valve is an important safety device because
it controls the air supply even if the air hose
is ruptured. the shutoff valve should be a
ball valve because it can be closed quickly.
3. Turn the tool's throttle or switch to the off position;
refer to Operation section for description of controls.
4. Close the in-line shutoff valve between
the compressor and the tool.
5. Turn on the air compressor according to
the manufacturer's directions and allow it
to build up pressure until it cycles off.
note: If an automatic oiler system is not used,
add a few drops of Pneumatic Tool Oil to the
airline connection before operation. Add a few
more drops after each hour of continual use.
6. Adjust the air compressor's output regulator
so that the air output is enough to properly
power the tool, but the output will not exceed
the tool's maximum air pressure at any time.
Adjust the pressure gradually, while checking the
air output gauge to set the right pressure range.
2. Attach an air hose to the compressor's air outlet.
Connect the air hose to the air inlet of the tool.
Other components, such as a coupler plug
and quick coupler, will make operation
7. Inspect the air connections for leaks.
Repair any leaks found.
more efficient, but are not required.
8. If the tool will not be used at this time, turn off
and detach the air supply, safely discharge
any residual air pressure, and release
WaRninG! tO pREVEnt SERiOuS injuRy
FROm acciDEntal OpERatiOn:
Do not install a female quick coupler on the tool.
Such a coupler contains an air valve that will
allow the air tool to retain pressure and operate
accidentally after the air supply is disconnected.
the throttle and/or turn the switch to its off
position to prevent accidental operation.
note: Residual air pressure should not be present
after the tool is disconnected from the air supply.
However, it is a good safety measure to attempt to
discharge the tool in a safe fashion after disconnecting
to ensure that the tool is disconnected and not powered.
note: Air flow, and therefore tool performance, can
be hindered by undersized air supply components.
The air hose must be long enough to reach
the work area with enough extra length to
allow free movement while working.
Item 98580
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Page 8
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Item 98580
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Operating instructions
Read the EntiRE impORtant SaFEty inFORmatiOn section at the beginning of this
manual including all text under subheadings therein before set up or use of this product.
inspect tool before use, looking for damaged, loose, and missing parts.
if any problems are found, do not use tool until repaired.
tO pREVEnt SERiOuS injuRy:
Do not adjust or tamper with any control or component in a way not specifically explained within
this manual. improper adjustment can result in tool failure or other serious hazards.
Work piece and Work area Set up
1. Designate a work area that is clean and well-lit.
The work area must not allow access by children
or pets to prevent distraction and injury.
3. Secure loose workpieces using a vise or clamps
(not included) to prevent movement while working.
4. There must not be hazardous objects
(such as utility lines or foreign objects) nearby
that will present a hazard while working.
2. Route the air hose along a safe route to reach
the work area without creating a tripping hazard
or exposing the air hose to possible damage.
The air hose must be long enough to reach
the work area with enough extra length to
allow free movement while working.
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General Operating instructions
If an automatic oiler is not used, add a few
drops of Pneumatic Tool Oil to the airline
connection before use. Add a few drops
more after each hour of continual use.
6. If the tool requires more force to accomplish
the task, verify that the tool receives sufficient,
unobstructed airflow (CFM) and increase the
pressure (PSI) output of the regulator up to the
maximum air pressure rating of this tool.
impORtant: Before each use, test the
Shear on scrap material of the same weight
and hardness as the workpiece.
cautiOn! tO pREVEnt injuRy FROm
tOOl OR accESSORy FailuRE:
Do not exceed the tool's
1. Mark the cutting line on the workpiece.
maximum air pressure rating.
If the tool still does not have sufficient force
at maximum pressure and sufficient airflow,
then a larger tool may be required.
2. Hold the Shear with both hands
safely away from Blades.
3. Position the Shear so that the Center Blade
is below, and the Left and Right Blades
are above, the edge of the workpiece.
7. When finished, to prevent accidents, turn off the
tool, detach the air supply, safely discharge any
residual air pressure in the tool, and release the
throttle and/or turn the switch to its off position
after use. Clean external surfaces of the tool with
clean, dry cloth, and apply a thin coat of tool oil.
Then store the tool indoors out of children's reach.
4. Squeeze and hold the Trigger and allow
the Blades to reach full speed.
5. Guide the Blades along the marked
line of the workpiece.
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user-maintenance instructions
procedures not specifically explained in this manual must
be performed only by a qualified technician.
tO pREVEnt SERiOuS injuRy FROm acciDEntal OpERatiOn:
turn off the tool, detach the air supply, safely discharge any residual air pressure
in the tool, and release the throttle and/or turn the switch to its off position before
performing any inspection, maintenance, or cleaning procedures.
tO pREVEnt SERiOuS injuRy FROm tOOl FailuRE:
Do not use damaged equipment. if abnormal noise, vibration,
or leaking air occurs, have the problem corrected before further use.
tO pREVEnt SEROuS injuRy FROm ExplOSiOn:
lubricate the tool only with specified lubricants. lubricate the air inlet using only
pneumatic tool oil. lubricate the internal mechanism using only white lithium grease.
Other lubricants may damage the mechanism and may be highly flammable, causing an explosion.
cleaning, maintenance, and lubrication
note: These procedures are in addition to the regular checks and maintenance
explained as part of the regular operation of the air-operated tool.
1. Daily - air Supply maintenance:
Every day, maintain the air supply according
to the component manufacturers' instructions.
Maintain the lubricator's oil level.
4. Replace the Blades if they become dull or damaged.
Replace with Item 98948. To replace the Blades:
Left Blade (32)
Nuts (31)
Drain the moisture filter regularly.
Cutter
Housing (38)
Performing routine air supply maintenance
will allow the tool to operate more safely
and will also reduce wear on the tool.
Center Blade (34)
2. - lubrication maintenance:
Before and after every use, lightly lubricate
the Cutters with machine oil.
3. Quarterly (every 3 months)
Bushings (33)
Socket Head Screws
(30)
- tool Disassembly, cleaning, and inspection:
Have internal mechanism cleaned, inspected, and
lubricated by a qualified technician. If the vanes
need replacement, replace them all as a set.
Figure 2
Right Blade (35)
a. Remove the two Socket Head Screws
(30) and Nuts (31) from the Cutter
Housing (38) of the Shear.
b. Remove the Blades (32, 34 and 35)
and two Bushings (33), noting how the
Bushings and Blades are arranged.
c. Arrange the two Bushings in the same
way between the new Blades, and
insert into the Cutter Housing.
d. Insert and secure the Socket
Head Screws and Nuts.
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troubleshooting
problem
possible causes
likely Solutions
Decreased output. 1. Not enough air pressure and/ 1. Check for loose connections and make sure that
or air flow.
air supply is providing enough air flow (CFM)
at required pressure (PSI) to the tool's air inlet.
Do not exceed maximum air pressure.
2. Obstructed trigger.
2. Clean around trigger to ensure free movement.
3. Incorrect lubrication or
not enough lubrication.
3. Lubricate using air tool oil and grease
according to directions.
4. Blocked air inlet screen
(if equipped).
4. Clean air inlet screen of buildup.
5. Air leaking from loose housing. 5. Make sure housing is properly assembled and tight.
6. Mechanism contaminated.
6. Have qualified technician
clean and lubricate mechanism. Install in-line filter
in air supply as stated in Setup: Air Supply.
7. Vane wear or damage.
1. Incorrect lubrication or
not enough lubrication.
7. Replace all vanes.
1. Lubricate using air tool oil and grease
according to directions.
Housing heats
during use.
2. Worn parts.
2. Have qualified technician inspect internal
mechanism and replace parts as needed.
1. Check for incorrect alignment and uneven gaps.
If cross-threaded, disassemble and
Severe air leakage. 1. Cross-threaded housing
(Slight air leakage
is normal,
components.
replace damaged parts before use.
especially on
older tools.)
2. Loose housing.
2. Tighten housing assembly. If housing cannot tighten
properly, internal parts may be misaligned.
3. Damaged valve or housing.
3. Replace damaged components.
4. Dirty, worn or damaged valve. 4. Clean or replace valve assembly.
Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect air supply before service.
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parts list and Diagram
plEaSE REaD thE FOllOWinG caREFully
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM
IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR
MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS
qUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS qUALIFIED TO REPLACE
ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR ExPRESSLY
STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND
LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY
ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS
THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
parts list
part
Description
Qty
1
1
1
1
1
1
1
4
part
Description
Qty
2
1
2
1
1
1
1
2
1
2
3
4
5
6
7
8
9
Housing
21 O-Ring
Ball Bearing
Rear End Plate
Pin
Cylinder
Pin
22 Bushing Throttle Valve
23 O-Ring
24 Trigger
25 Set Screw
26 Washer
27 Exhaust Diffuser
28 Screw
Rotor
Vane
Front Plate
1
29 Air Inlet
1
10 Ball Bearing
11 Washer
1
1
30 Socket Head Screw
31 Nut
3
3
12 Internal Gear
13 Planet Gear
14 Pin
15 Link Spindle
16 Ball Bearing
17 Spring
1
3
3
1
2
1
1
1
32 Left Blade
33 Bushing
1
2
1
1
1
1
1
1
34 Center Blade
35 Right Blade
36 Ball Bearing
37 Eccentric Nut
38 Cutter Housing
39 Washer
18 Clamp Nut
19 O-Ring
20 Valve Spindle
1
Record product's Serial number here:
note: If product has no serial number, record month and year of purchase instead.
note: Some parts are listed and shown for illustration purposes only,
and are not available individually as replacement parts.
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assembly Diagram
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limited 90 Day Warranty
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards,
and warrants to the original purchaser that this product is free from defects in materials and workmanship for the
period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper
installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries
to persons or property, or for incidental, contingent, special or consequential damages arising from the use of
our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the
above limitation of exclusion may not apply to you. THIS WARRANTY IS ExPRESSLY IN LIEU OF ALL OTHER
WARRANTIES, ExPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation charges
prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise.
If our inspection verifies the defect, we will either repair or replace the product at our election or we may
elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will
return repaired products at our expense, but if we determine there is no defect, or that the defect resulted
from causes not within the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353
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