Kobalt SGY-AIR173 User manual

1/2 IN. AIR
IMPACT WRENCH
ITEM #0402535
KOBALT and the K & Design are registered
trademarks of LF, LLC.All rights reserved.
MODEL #SGY-AIR173
® ®
ATTACH YOUR RECEIPT HERE
Serial Number Purchase Date
Questions, problems, missing parts? Before returning to your retailer, call
our customer service department at 1-888-3KOBALT, 8 a.m. - 8 p.m., EST,
Monday - Friday.
15
30

TABLEOF CONTENTS
2
Safety Information ............................................................................................... 3
Package Contents ............................................................................................... 8
Preparation .......................................................................................................... 8
Assembly Instructions .......................................................................................... 9
Operating Instructions ........................................................................................ 11
Care and Maintenance ....................................................................................... 12
Troubleshooting .................................................................................................. 13
Warranty ............................................................................................................. 13
Replacement Parts List ...................................................................................... 14

3
SPECIFICATIONS
1/2 IN.
7,000 RPM+/- 10%
500 FT.-LBS.
7 CFM
1/4 IN.NPT
3/8 IN.
90 PSI
COMPONENT
SQUARE DRIVE
FREE SPEED
MAXIMUM TORQUE
AVERAGEAIR CONSUMPTION
AIR INLET
AIR HOSE
WORKING PRESSURE
PRODUCT SPECIFICATIONS
SAFETY INFORMATION
Please read and understand this entire manual before attempting to assemble, operate
or install the product. If you have any questions regarding the product, please call
customer service at 1-888-3KOBALT, 8:00 a.m.-8:00 p.m., EST, Monday-Friday.
Improper operation or maintenance of this product could result in serious injury and
property damage. Read and understand all warnings and operation instructions
before using this equipment. When using air tools, basic safety precautions should
always be followed to reduce the risk of personal injury.
WARNING
Some dust created by power sanding, sawing, grinding, drilling and other related
activities contains chemicals known to the State of California to cause cancer, birth
defects or other reproductive harm. Alisting of chemicals can be obtained from
www.oehha.ca.gov under proposition 65. Some examples of these chemicals are:
Lead from lead-based paints
Crystalline silica from bricks, cement and other masonry products
Arsenic and chromium from chemically-treated lumber
Users of these tools should review the chemical composition of the work surface
and any products in conjunction with the operation of these tools for any such
chemicals prior to engaging in any activity that creates dust and/or microscopic
particles.
Users should obtain the material safety data sheets from all identified chemicals,
either from the manufacturer or their employer, and proceed to study, understand,
and follow all instructions and warnings for exposure to such chemicals. 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.
WARNING

RISK OF EYE OR HEAD INJURY
WHAT COULD HAPPEN HOW TO PREVENT IT
Air powered tools are capable of
propelling materials such as fasteners,
metal chips, sawdust and other debris
at high speed which could result in
serious eye injury.
Compressed air can be hazardous. The
air system can cause injury to soft
tissue areas such as eyes, ears, etc.
Particles or objects propelled by the
stream can cause injury.
Tool attachments can become loose or
break and fly apart propelling articles at
the operator and others in the work
area.
WARNING
WHAT COULD HAPPEN HOW TO PREVENT IT
WARNING
An impact wrench would be capable of
generating sparks, which could result in
ignition of flammable materials.
Exceeding the maximum pressure
rating of tools or accessories could
cause an explosion resulting in
serious injury.
RISK OF FIRE OR EXPLOSION
Never operate tools near flammable
substances such as gasoline, naphtha,
cleaning solvents, etc.
Work in a clean, well-ventilated area
free of combustible materials.
Never use oxygen, carbon dioxide or
other bottled gases as a power source
for air tools.
Use compressed air regulated to a
maximum pressure at or below the
rated pressure of any attachments.
Never connect to an air source that is
capable of exceeding 200 PSI.
Always verify prior to using the tools
that the air source has been adjusted
to the rated air pressure range.
WHAT COULD HAPPEN HOW TO PREVENT IT
WARNING
RISK OF LOSS OF HEARING
Always wear ANSI S3.19 hearing
protection.
Long term exposure to noise produced
from the operation of air tools can lead
to permanent hearing loss.
4
Always wear ANSI approved Z87.1
safety glasses with side shields.
Never leave operating tool unattended.
Disconnect air hose when tool is not
in use.
For additional protection use an
approved face shield in addition to
safety glasses.
Make sure that any attachments are
securely assembled.

WHAT COULD HAPPEN HOW TO PREVENT IT
WARNING
INHALATION HAZARD
Abrasive tools, such as grinders,
sanders and cut-off tools generate dust
and abrasive materials, which can be
harmful to human lungs and respiratory
system.
Some materials such as adhesives and
tar contain chemicals whose vapors
could cause serious injury with
prolonged exposure.
Always wear properly fitting facemask
or respirator when using such tools.
Always work in a clean, dry,
well-ventilated area.
WHAT COULD HAPPEN HOW TO PREVENT IT
WARNING
RISK OF INJURY
A tool left unattended, or with the air
hose attached, can be activated by
unauthorized persons leading to their
injury or injury to others.
Air tools can propel fasteners or other
materials throughout the work area.
A wrench or a key that is left attached to
a rotating part of the tool increases the
risk of personal injury.
Using inflator nozzles for duster
applications can cause serious injury.
Air tools can become activated by
accident during maintenance or tool
changes.
Air tools can cause the workpiece to
move upon contact, leading to injury.
Remove air hose when tool is not in use
and store tool in secure location away
from reach of children and untrained
users.
Use only parts, fasteners and accessories
recommended by the manufacturer.
Keep work area clean and free of
clutter. Keep children and others away
from tool while it is in operation.
Keep work area well lit.
Remove adjusting keys and wrenches
before turning the tool on.
DO NOT use inflator nozzles for duster
applications.
Remove air hose to lubricate or add
impact sockets to the tool.
Never carry the tool by hose.
Avoid unintentional starting. Don't carry
hooked-up tool with finger on trigger.
Only an authorized service
representative should do repair
servicing.
Use clamps or other devices to prevent
movement.
5

Loss of control of the tool can lead to
injury to self or others.
Poor quality, improper or damaged tools
and attachments can fly apart during
operation, propelling particles
throughout the work area causing
serious injury.
Improperly maintained tools and
accessories can cause serious injury.
There is a risk of bursting if the tool is
damaged.
Use only accessories identified by the
manufacturer to be used with specific
tools.
Never use tool while using drugs or
alcohol.
Don't overreach. Keep proper footing
and balance.
Keep handles dry, clean and free from
oil/grease.
Stay alert. Watch what you are doing.
Use common sense. Do not operate
tool when you are tired.
Always use tool attachments rated for
the speed of the power tool.
Never use tools, which have been
dropped, impacted or damaged by use.
Use only impact grade sockets on
this tool.
Do not apply excessive force to the tool;
let the tool perform the work.
Maintain the tool and accessories
with care.
Keep the tool clean. Aproperly
maintained tool reduces the risk of
binding and is easier to control.
Check for misalignment or binding of
moving parts, breakage of parts and
any other condition that affects the
tool's operation. If damaged, have the
tool serviced before using.
Use of an accessory not intended for
use with the specific tools increases the
risk of injury to persons.
WHAT COULD HAPPEN HOW TO PREVENT IT
WARNING
RISK OF INJURY
WHAT COULD HAPPEN HOW TO PREVENT IT
WARNING
RISK OF ELECTRIC SHOCK
Using air tools to attach electrical wiring
can result in electrocution or death.
This tool is not provided with an
insulated gripping surface. Contact with
a “live” wire will also make exposed
metal parts of the tool “live” and can
result in electrocution or death.
Never use tools to attach electrical
wiring while energized.
Avoid body contact with grounded
surfaces such as pipes, radiators,
ranges and refrigerators. There is an
increased risk of electric shock if your
body is grounded.
6

Tools which contain moving elements,
or drive other moving parts, such as
impact sockets, can become entangled
in hair, clothing, jewelry and other loose
objects, resulting in severe injury.
WHAT COULD HAPPEN HOW TO PREVENT IT
WARNING
RISK OF ENTANGLEMENT
Never wear loose fitting clothes or
apparel that contains loose straps or
ties, etc., which could become
entangled in moving parts of the tools.
Remove any jewelry, watches,
identifications, bracelets, necklaces,
etc., which might become caught by
the tool.
Keep hands away from moving parts.
Tie up or cover long hair.
Always wear proper fitting clothing and
other safety equipment when using
the tool.
WHAT COULD HAPPEN HOW TO PREVENT IT
WARNING
RISK OF CUT OR BURNS
Keep the working part of the tool away
from hands and body.
An impact wrench would be capable of
causing serious injury if it was operated
in an improper way.
7
WHAT COULD HAPPEN HOW TO PREVENT IT
WARNING
RISK OF ELECTRIC SHOCK
Air tool accessories such as impact
sockets that come into contact with
hidden electrical wiring could cause
electrocution or death.
Thoroughly investigate the workpiece
for possible hidden wiring before
performing work.

Before beginning assembly of product, make sure all parts are present. Compare
parts with package contents list above. If any part is missing or damaged, do not
attempt to assemble the product. Contact customer service for replacement parts.
Estimated Assembly Time: 5-10 minutes
Tools Required for Assembly (not included):Adjustable wrench
PACKAGECONTENTS
PREPARATION
8
DESCRIPTION
1/2 in. Impact Wrench
Anvil
Trigger
Switch
Air Inlet
Grease Cap
QUANTITY
1
1
1
1
1
1
PART
A
B
C
D
E
F
A
B
CD
E
F

1. Remove the air inlet protective cap from the
air inlet (E). (See Figure 1)
ASSEMBLY INSTRUCTIONS
9
2. Mount a male plug (not included) by hand
into the air inlet (E). (See Figure 2)
3. Place 2 - 3 drops of air tool oil (not included)
into the male plug before each use.
(See Figure 3)
NOTE Use thread sealant tape (not included) on
the male plug and tighten it with a wrench (not
included) for airtight connection. Do not
overtighten.
1
3
1
2

5
4
6
ASSEMBLY INSTRUCTIONS
4. Choose the correct impact socket
(not provided) as needed and mount it onto
the anvil (B). (See Figure 4)
5. If longer reach is necessary, use an extension
bar (not provided) and then mount impact
socket (not provided) onto the bar.
(See Figure 5)
6. Connect air supply hose to the male plug. Set
the working pressure at 90 PSI for best tool
performance. (See Figure 6)
Only use impact sockets that have an RPM
rating equal to or greater than the tool itself.
WARNING
10
NOTE Working pressure refers to the air line
pressure set to tool when tool is under working
conditions.

11
OPERATING INSTRUCTIONS
1. How to install/tighten threaded fasteners.
Push the switch D from right to left, press
the trigger C. The tool anvil (B) runs clockwise.
(See Figure 1)
Torque in Forward
320 ft-lbs (+/- 10%)
430 ft-lbs (+/- 10%)
500 ft-lbs (+/- 10%)
Torque in Reverse
420 ft-lb (+/- 10%)
480 ft-lb (+/- 10%)
515 ft-lb (+/- 10%)
Setting
LO Click
MED Click
HI Click
NOTE This tool features a power regulator valve.
When turn the switch (D) slowly forward, the
sound of clicks will be detected. The clicks do not
denote a specific power output but are only for
reference.When the switch arrow points to “Lo” ,
it stands for the least amount of power, which is
suitable for just mounting threaded fasteners .
When the switch arrow points to “Hi”, it stands for
the most amount of power, which is for tightening
threaded fasteners from workpiece with ease.
In reverse, the tool also has the function of gear,
which is suitable for removing screws of different
specifications. Please choose the appropriate
torque needed on the workpiece.
(See Figure 3)
2. How to remove/loosen threaded fasteners.
Push the switch D from left to right, press
the trigger C. The tool anvil (B) runs
counterclockwise.
(See Figure 2)
1
2
3

4
12
OPERATING INSTRUCTIONS
NOTE This tool also features a grease cap (F)
on the protector cover. Remove the screw in the
grease cap (F) with a hex key (not provided).
Use a grease gun (not provided) and insert the
gun nozzle into the grease cap (F). Several
drops of grease are recommended for lubricating
the internal hammer assembly.This will help the
hammer assembly to work in good condition and
extend tool life. Lubricate the hammer assembly
once every working day. (See Figure 4)
CARE ANDMAINTENANCE
An in-line oiler is recommended to be installed on air supply line as it increases tool
life and keeps the tool in sustained operation. The in-line oiler should be regularly
checked and filled with air-tool oil. Proper adjustment of the in-line oiler is performed
by placing a sheet of paper next to the tool’s exhaust ports and holding the throttle
open approximately 30 seconds. The in-line oiler is properly set when a light stain of
oil collects on the paper. Excessive amounts of oil should be avoided.
In the event that it becomes necessary to store the tool for an extended period of
time, it should receive a generous amount of lubrication at that time. The tool should
be run for approximately 30 seconds to ensure oil has been evenly distributed
throughout the tool. The tool should be stored in a clean and dry environment.
Recommended lubricants: use air-tool oil or any other high-grade turbine oil
containing moisture absorbent, rust inhibitors, metal wetting agents and an EP
(extreme pressure) additive.
Clean the tool all over with a cotton rag after each use. Keep the tool in a dry and
safe place out of reach of children.

THREE-YEAR LIMITEDWARRANTY
13
1. Flush the tool with air-tool oil or gum
solvent.
2. Lubricate the tool.
3. a. Adjust the regulator on the tool to
maximum setting.
b. Adjust the compressor regulator to tool
maximum of 90 PSI.
4. Tighten and seal hose fittings if leaks are
found. Use sealing tape.
5. a. Be sure the hose is the proper size.
Long hose or tools using large volumes
of air may require a hose with an I.D. of
1/2 in. or larger depending on the total
length of the hoses.
b. Do not use a multiple number of hoses
connected together with quick-connect
fittings. This causes additional pressure
drops and reduces the tool power.
Directly connect the hoses together.
6. Replace rotor blade.
7. Water in tank; drain tank. (See air
compressor manual). Oil tool and run
until no water is evident. Oil tool again
and run 1-2 seconds.
Tool runs
slowly or will
not operate
1. Grit or gum in tool.
2. No oil in tool.
3. Low air pressure.
4. Air hose leaks.
5. Pressure drops.
6. Worn rotor blade.
7. Moisture blowing
out of tool exhaust.
PROBLEM
TROUBLESHOOTING
CORRECTIVE ACTIONPOSSIBLE CAUSE
This tool is warranted by the manufacturer to the original purchaser from the original
purchase date for three (3) years subject to the warranty coverage described herein.
This tool is warranted to the original user to be free from defect in material and
workmanship. If you believe that a tool is defective, return the tool, with proper proof
of purchase to the point of purchase. If it is determined that the tool is defective and
covered by this warranty, the distributor will replace the tool or refund the
purchase price.
This warranty is void if: defects in materials or workmanship or damages result from
repairs or alterations which have been made or attempted by others or the
unauthorized use of nonconforming parts; the damage is due to normal wear,
damage is due to abuse (including overloading of the tool beyond capacity), improper
maintenance, neglect or accident; or the damage is due to the use of the tool after
partial failure or use with improper accessories or unauthorized repair or alteration.
This warranty gives you specific legal rights, and you may also have other rights that
vary from state to state.
For warranty questions, call our customer service department at 1-888-3KOBALT,
8:00 a.m.-8:00 p.m. EST, Monday-Friday.

REPLACEMENT PARTS LIST
14
27
28
29
30
31
32
33
34
35
36
D
38
39
40
41
42
E
44
45
46
47
48
Socket retainer
O-ring 7.65x1.8
Grease cap
Screw M5x16
Spring washer 5
Protector cover
Anvil bushing
Anvil
Hammer cage
Hammer pin
Hammer
Hammer case gasket
Washer
Motor clamp washer
Bearing R8
Front end plate
Cylinder Dowel
Cylinder
Rotor blade
Rotor
Rear end plate
Bearing 6001
Gasket
Rotor bearing retainer
Soft grip
Trigger
O-ring 3x1
Detent spring
detent ball sw=3.175
Pin 2.5x25
Screw M5x8
Reverse valve knob
O-ring 10.6x1.8
Housing
Reverse valve bushing
Reverse valve
Switch
Air deflector
Screw M4x8
Valve bushing
Valve stem
Reverse valve spring
Air inlet
Dust cover
Housing cover
Soft grip
Screw M5x20
Soft grip
1
2
F
4
5
6
7
B
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
C
1
1
1
5
4
1
1
1
1
2
2
1
1
2
1
1
1
1
6
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Part No.
Description Qty.
Part No.
Description Qty.
Printed in China
For replacement parts, call our customer service department at 1-888-3KOBALT,
8:00 a.m.-8:00 p.m., EST,
Monday-Friday.