Sunex Tools SX670A User manual

SX670A 1 Rev. 02/09/06
Operating Instructions • Warning Information • Parts Breakdown
SX670A
3/4" Dr.
Impact Wrench
SPECIFICATIONS
Square Drive . . . . . . . . . . . 3/4"
Max Torque . . . . . . . . 740 ft. lbs.
Rec. Air Pressure. . . . . . . . 90 psi
Avg. Air Consumption. . . 6.4 cfm
Free Speed . . . . . . . . .4,500 RPM
Sound Level . . . . . . . . . . 90 dBA
Air Inlet . . . . . . . . . . . . 1/4 NPT
Hose Size . . . . . . . . . . . . 3/8" ID
Length . . . . . . . . . 9.6" (245 mm)
Weight . . . . . . . 10.4 Lbs. (4.7 kg)
ALWAYS READ
INSTRUCTIONS
BEFORE USING
POWER TOOLS
ALWAYS WEAR
SAFETY GOGGLES
WEAR HEARING
PROTECTION
AVOID
PROLONGED
EXPOSURE TO
VIBRATION
Some dust created by power sanding, sawing, grinding, drilling,
and other construction activities contains chemicals known to
cause cancer, birth defects or other reproductive harm. Some
examples of these chemicals are:
• lead from lead-based paints,
• crystalline silica from bricks and cement
and other masonry products, and
• 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.
SX670A_om_020609.indd 1 3/6/06 3:53:20 PM

SX670A 2 Rev. 02/09/06
THIS INSTRUCTION MANUAL CONTAINS
IMPORTANT SAFETY INFORMATION.
READ THIS INSTRUCTION MANUAL
CAREFULLY AND UNDERSTAND ALL
INFORMATION BEFORE OPERATING
THIS TOOL.
• Always operate, inspect and maintain this
tool in accordance with American National
Standards Institute Safety Code of Porta-
ble Air Tools (ANSI B186.1) and any other
applicable safety codes and regulations.
• For safety, top performance and maximum
durability of parts, operate this tool at 90
psig, 6.2 bar max air pressure with 3/8"
diameter air supply hose.
• Always wear impact-resistant eye and face
protection when operating or performing
maintenance on this tool. Always wear hear-
ing protection when using this tool.
• High sound levels can cause permanent
hearing loss. Use hearing protection as
recommended by your employer or OSHA
regulation.
• Keep the tool in efficient operating condition.
• Operators and maintenance personnel
must be physically able to handle the bulk,
weight and power of this tool.
• Air under pressure can cause severe injury.
Never direct air at yourself or others.
Always turn off the air supply, drain hose of
air pressure and detach tool from air supply
before installing, removing or adjusting any
accessory on this tool, or before performing
any maintenance on this tool. Failure to do
so could result in injury. Whip hoses can
cause serious injury. Always check for dam-
aged, frayed or loose hoses and fittings, and
replace immediately. Do not use quick
detach couplings at tool. See instructions
for correct set-up.
• Air powered tools can vibrate in use.
Vibration, repetitive motions or
uncomfortable positions over extended
periods of time may be harmful to your
hands and arms. Discontinue use of tool if
discomfort, tingling feeling or pain occurs.
Seek medical advice before resuming use.
• Place the tool on the work before starting
the tool.
• Slipping, tripping and/or falling while
operating air tools can be a major cause of
serious injury or death. Be aware of excess
hose left on the walking or work surface.
• Keep body working stance balanced and firm.
Do not overreach when operating the tool.
• Anticipate and be alert for sudden changes
in motion during start up and operation of
any power tool.
• Do not carry tool by the hose. Protect the
hose from sharp objects and heat.
• Tool shaft may continue to rotate briefly
after throttle is released. Avoid direct
contact with accessories during and after
use. Gloves will reduce the risk of cuts or
burns.
• Keep away from rotating end of tool. Do not
wear jewelry or loose clothing. Secure long
hair. Scalping can occur if hair is not kept
away from tool and accessories. Choking
can occur if neckwear is not kept away
from tool and accessories.
• Impact wrenches are not torque control
devices. Fasteners with specific torque
requirements must be checked with
suitable torque measuring devices after
installation with an impact wrench.
• Use only impact wrench sockets and
accessories on this tool. Do not use hand
sockets and accessories.
• Do not lubricate tools with flammable or
volatile liquids such as kerosene, diesel or
jet fuel.
• Do not force tool beyond its rated capacity.
• Do not remove any labels. Replace any
damaged labels.
FAILURE TO OBSERVE THESE WARNINGS COULD RESULT IN INJURY.
SX670A_om_020609.indd 2 3/6/06 3:53:24 PM

SX670A 3 Rev. 02/09/06
SX670A
3/4" Dr. Impact Wrench
REF. # ITEM # DESCRIPTION QTY.
1 RS16101 Housing (Including #2) 1
2 Valve Sleeve (Included in #1) 1
3 RS670A03 Bushing 1
4 RS670A04 Oil Seal 1
5 RS670A05 Washer 1
6 RS16106 Anvil Collar 1
7 RS16107 O-Ring 1
8 RS670A08 Anvil 1
9 RS670A09 Drive Cam 1
10 RS670A10 Foundation 1
11 RS670A11 Hammer Cage 1
12 RS670A12 Hammer Pin 2
13 RS221RA32 Bearing 2
14 RS16114 Oil Seal 1
15 RS16115 O-Ring 1
16 RS16116 Front Plate (Includes #50 & #51) 1
17 RS670A17 Rotor 1
18 RS16118 Rotor Blade 6
19 RS16119 Cylinder 1
20 RS16120 End Plate 1
21 RS16121 Rear Gasket 1
22 RS16122 Rear Cover 1
23 RS16123 Bushing 1
24 RS16124 Spring Washer 3
25 RS16125 Screw 3
26 RS16126 Spring Washer 4
Ref. # Item # DESCRIPTION QTY.
27 RS16127 Screw 4
28 RS16128 Muffler Cover 1
29 RS16129 Screw 2
30 RS16130 Reverse Valve 1
31 RS16131 O-Ring 1
32 RS16132 Pin 1
33 RS16133 Spring 1
34 RS16134 Screw 1
35 RS16135 Trigger 1
36 RS16136 Pin 1
37 RS16137 Valve Stem 1
38 RS16138 O-Ring 1
39 RS16139 Spring 1
40 RS16010 Air Inlet 1
41 RS16141 Air Regulator 1
42 RS16142 O-Ring 1
43 RS16143 Pin 1
44 RS16040 Screw 1
45 RS16145 Protecting Rubber 1
46 RS16146 Rubber 1
47 RS670A47 Spring 1
48 RS670A48 Steel Ball 1
49 RS16148 Plug 1
50 Plug (Incl. w/ #16) 4
51 Screw Thread Inserts(Incl. w/ #16) 3
52 RS76029 Oil Seal 1
3
5
8
47
9
10
48
12
11
51 16 15
14 13
34 33 32
1
47645
29 28
44
35
36
49
43
37
38
23
39
40
41
42
52
2
30
31
17
18
19
20
13
21
22
26
27
25
46
24
50
50
SX670A_om_020609.indd 3 3/6/06 3:53:28 PM

SX670A 4 Rev. 02/09/06
Air Supply...
Tools of this class operate on a wide range of air pressures. It is
recommended that air pressure of these tools measures 90 PSI at
the tool while running free. Higher pressure (over 90 psig; 6.2
bar) raises performance beyond the rated capacity of the tool,
which will shorten tool life because of faster wear and could
cause injury.
Always use clean, dry air. Dust, corrosive fumes and/or water
in the air line will cause damage to the tool. Drain the air
tank daily. Clean the air inlet filter screen on at least a weekly
schedule. The recommended hookup procedure can be viewed in
the above figure.
The air inlet used for connecting air supply, has standard 1/4"
NPT. Line pressure should be increased to compensate for
unusually long air hoses (over 25 feet). Minimum hose diameter
should be 3/8" I.D. and fittings should have the same inside
dimensions and be tightly secured.
Lubrication...
Lubricate the air motor daily with quality air tool oil. If no air line
oiler is used, run a teaspoon of oil through the tool. The oil can
be squirted into the tool air inlet or into the hose at the nearest
connection to the air supply, then run the tool. The amount of oil
to be used is 1 ounce. Overfilling will cause a reduction in the
power of the tool.
Operation...
The air regulator knob can be used as an air throttle, if there are
no other means of regulating air. Turn the air regulator knob all
the way to left (counterclockwise) for maximum power.
The air regulator can be used to adjust torque to the
approximate tightness of a known fastener.
To set the tool to desired torque, select a nut or screw of known
tightness of the same size, thread pitch and thread condition as
those on the job. Turn air regulator to low position (clockwise),
apply wrench to nut and gradually increase power (turn
regulator to admit more air) until nut moves slightly in the
direction it was originally set. The tool is now set to duplicate
that tightness - note regulator setting for future use. When
tightening nuts not requiring critical torque values, run nut up
flush and then tighten an additional one-quarter to one-half
turn (slight additional turning is necessary if gaskets are being
clamped). For additional power needed on disassembly work,
turn regulator to its fully open position. This impact wrench is
rated at 3/4" USS bolt size. Rating must be down graded for
spring U bolts, tie bolts, long cap screws, double depth nuts,
badly rusted conditions and spring fasteners as they absorb
much of the impact power. When possible, clamp or wedge the
bolt to prevent springback.
Soak rusted nuts in penetrating oil and break rust seal before
removing with impact wrench. If nut does not start to move in
three to five seconds, use a larger size impact wrench. Do not
use impact wrench beyond rated capacity as this will drastically
reduce tool life.
Operating Instructions • Warning Information • Parts Breakdown
Limited Warranty...
SUNEX INTERNATIONAL, INC. WARRANTS TO ITS CUSTOMERS THAT THE COMPANY’S SUNEX TOOLS® BRANDED
PRODUCTS ARE FREE FROM DEFECTS IN WORKMANSHIP AND MATERIALS.
Sunex International, Inc. will repair or replace its Sunex Tools® branded products which fail to give satisfactory service due to defective
workmanship or materials, based upon the terms and conditions of the following described warranty plans attributed to that specific product.
This product carries a ONE-YEAR warranty. During this warranty period, Sunex Tools will repair or replace at our option any part or unit
which proves to be defective in material or workmanship.
Other important warranty information...
This warranty does not cover damage to equipment or tools arising from alteration, abuse, misuse, damage and does not cover any repairs or
replacement made by anyone other than Sunex Tools or its authorized warranty service centers.The foregoing obligation is Sunex Tools’ sole
liability under this or any implied warranty and under no circumstances shall we be liable for any incidental or consequential damages.
Note: Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion
may not apply to you. Return equipment or parts to Sunex Tools, or an authorized warranty service center, transportation prepaid. Be
certain to include your name and address, evidence of the purchase date, and description of the suspected defect.
If you have any questions about warranty service, please write to Sunex Tools. This warranty gives you specific legal rights and you may also
have other rights which vary from state to state. Repair kits and replacement parts are available for many of Sunex Tools products regardless
of whether or not the product is still covered by a warranty plan.
Shipping Address: Sunex Tools • 315 Hawkins Rd. • Travelers Rest, SC 29690
Mailing Address: Sunex Tools • P.O. Box 4215 • Greenville, SC 29608
SX670A_om_020609.indd 4 3/6/06 3:53:29 PM

SX670A 5 Rev. 02/09/06
Instrucciones operativas • Información precautoria • Esquema de los componentes
Lijar, cortar, esmerilar, taladrar y otras actividades
propias de las obras en construcción, con equipo
neumático pudieran crearse ciertos polvos identificados
como causantes de cáncer, defectos en el nacimiento
u otras lesiones en los órganos reproductores. Entre
algunos de los ejemplos de estos productos químicos
están:
• El plomo en las pinturas con base de plomo,
• Sílice cristalina en los ladrillos y cemento así como
en otros productos de albañilería,
• Arsénico y cromio proveniente de la madera tratada
con productos químicos.
Los peligros al exponerse a estos productos varía,
dependiendo de qué tan frecuentemente se hagan esos
tipos de trabajos. Si desea disminuir su exposición
a estos productos químicos: trabaje en un lugar con
buena ventilación y hágalo con el equipo de seguridad
aprobado, como lo son las mascarillas cubrepolvo que
fueron diseñadas especialmente para filtrar las partículas
microscópicas.
LEA SIEMPRE LAS
INSTRUCCIONES
ANTES DE USAR
HERRAMIENTAS
NEUMÁTICAS.
USE SIEMPRE
GAFAS DE
SEGURIDAD.
4 PTUSE
PROTECCIÓN
PARA LOS OÍDOS.
4 PTEVITE
EXPONERSE
PROLONGADAMENTE
A LAS VIBRACIONES
ESPECIFICACIONES
Vástago cuadrado .............. 3/4 pulg.
Torque máximo ..............740 pies. lbs.
Presión de aire rec. .................. 90 psi
Consumo medio de aire .......... 6.4 cfm
Velocidad en vacío ............4,500 RPM
Nivel de sonido ...................... 90 dBA
Admisión de aire ................. 1/4 NPT
Tamaño de manguera .............3/8" ID
Longitud ......................9.6" (245 mm)
Peso ....................... 10.4 Lbs. (4.7 kg)
SX670A
Llave de
impacto con
vástago
de 3/4 pulg.
SX670A_om_020609.indd 5 3/6/06 3:53:33 PM