Ryobi RAIW-G User manual

AIR IMPACT WRENCH (TWIN HAMMER)
OPERATOR'S MANUAL
ORIGINAL INSTRUCTIONS
RAIW-G

Important!
It is essential that you read the instructions in this manual before
operating this machine.
Subject to technical modifications.

1. Wrench anvil
2. Front housing cover
3. Main housing
4. Trigger
5. Air inlet
6. Exhaust deector
7. Nitto style coupler
8. Adjustment knob
9. Counterclockwise
10. Clockwise (torque 1)
11. Clockwise (torque 2)
12. Clockwise (torque 3)
DESCRIPTION
46
2
1
5
3
Fig.1 Fig.2
Fig.4Fig.3
Fig.5
Quick
connector
Quick
connector Lubricator Filter
Cut-off
valve
Regulator
(0-8.5 bar)
Quick
coupler
Tool Air
compressor
Quick
coupler
Air hose
7
8
9
10
11
12

1
GENERAL SAFETY RULES
■For multiple hazards, read and understand the safety
instructions before installing, operating, repairing,
maintaining, changing accessories on, or working
near the assembly power tool for threaded fasteners.
Failure to do so can result in serious bodily injury.
■Only qualified and trained operators should install,
adjust or use the assembly power tool for threaded
fasteners.
■Do not modify this assembly power tool for threaded
fasteners. Modifications can reduce the effectiveness
of safety measures and increase the risks to the
operator.
■Do not discard the safety instructions; give them to the
operator.
■Do not use the assembly power tool for threaded
fasteners if it has been damaged.
■Tools shall be inspected periodically to verify that the
ratings and markings required by this part of ISO 11148
are legibly marked on the tool. The employer/user
shall contact the manufacturer to obtain replacement
marking labels when necessary.
■Ensure that the pressure of the air supply is not lower
than the lowest pressure specified by the manufacturer
for clutch-controlled assembly tools and make sure
that the air supply pressure does not fall after the
clutch has been set.
■Support handle and reaction bar are not required for
this product.
PROJECTILE HAZARDS
■Failure of the work piece, of accessories or even of
the inserted tool itself can generate high-velocity
projectiles.
■Always wear impact-resistant eye protection during
the operation of the assembly power tool for threaded
fasteners. The grade of protection required should be
assessed for each use.
■Ensure that the work piece is securely fixed.
ENTANGLEMENT HAZARDS
■Entanglement hazards can result in choking, scalping
and/or lacerations if loose clothing, personal jewelry,
neck ware, hair or gloves are not kept away from the
tool and accessories.
■Gloves can become entangled with the rotating drive,
causing severed or broken fingers.
■Rotating drive sockets and drive extensions can easily
entangle rubber-coated or metal-reinforced gloves.
■Do not wear loose-fitting gloves or gloves with cut or
frayed fingers.
■Never hold the drive, socket or drive extension.
■Keep hands away from rotating drives.
OPERATING HAZARDS
■The use of the tool can expose the operator’s hands
to hazards including crushing, impacts, cuts and
abrasions and heat. Wear suitable gloves to protect
hands.
■Operators and maintenance personnel shall be
physically able to handle the bulk, weight and power
of the tool.
■Hold the tool correctly; be ready to counteract normal
or sudden movements and have both hands available.
■Maintain a balanced body position and secure footing.
■In cases where the means to absorb the reaction torque
are requested, it is recommended to use a suspension
arm whenever possible. If that is not possible, side
handles are recommended for straight case and pistol-
grip tools. Reaction bars are recommended for angle
nut runners. In any case, it is recommended to use a
means to absorb the reaction torque above 4 Nm for
straight tools, above 10 Nm for pistol-grip tools, and
above 60 Nm for angle nut runners.
■Release the start-and-stop device in the case of an
interruption of the energy supply.
■Use only lubricants recommended by the manufacturer.
■Fingers can be crushed in open-ended crow-foot nut
runners.
■Do not use in confined spaces and beware of crushing
hands between tool and work piece, especially when
unscrewing.
REPETITIVE MOTIONS HAZARDS
■When using an assembly power tool for threaded
fasteners to perform work-related activities, the
operator can experience discomfort in the hands,
arms, shoulders, neck or other parts of the body.
■While using an assembly power tool for threaded
fasteners, the operator should adopt a comfortable
posture while maintaining secure footing and avoiding
awkward or off-balanced postures. The operator
should change posture during extended tasks, which
can help avoid discomfort and fatigue.
■If the operator experiences symptoms such as
persistent or recurring discomfort, pain, throbbing,
aching, tingling, numbness, burning sensations or
stiffness, these warning signs should not be ignored.
The operator should tell the employer and consult a
qualified health professional.
ACCESSORY HAZARDS
■Disconnect the assembly power tool for threaded
fasteners from the energy supply before changing the
inserted tool or accessory.
■Do not touch sockets or accessories during impacting,
as this increases the risk of cuts, burns or vibration
injuries.
■Use only sizes and types of accessories and

2
consumables that are recommended by the assembly
power tool for threaded fasteners manufacturer;
do not use other types or sizes of accessories and
consumables.
■Use only impact-wrench-rated sockets in good
condition, as poor condition or hand sockets and
accessories used with impact wrenches can shatter
and become a projectile.
WORKPLACE HAZARDS
■Slips, trips and falls are major causes of workplace
injury. Be aware of slippery surfaces caused by the
use of the tool and also of trip hazards caused by the
air line or hydraulic hose.
■Proceed with care in unfamiliar surroundings. Hidden
hazards, such as electricity or other utility lines, can
exist.
■The assembly power tool for threaded fasteners is not
intended for use in potentially explosive atmospheres
and is not insulated against coming into contact with
electric power.
■Make sure there are no electrical cables, gas pipes,
etc., that can cause a hazard if damaged by use of
the tool.
DUST AND FUME HAZARDS
■Dust and fumes generated when using assembly
power tools for threaded fasteners can cause ill health
(for example cancer, birth defects, asthma and/or
dermatitis); risk assessment and implementation of
appropriate controls for these hazards are essential.
■Risk assessment should include dust created by the
use of the tool and the potential for disturbing existing
dust.
■Direct the exhaust so as to minimize disturbance of
dust in a dust-filled environment.
■Where dust or fumes are created, the priority shall be
to control them at the point of emission.
■All integral features or accessories for the collection,
extraction or suppression of airborne dust or fumes
should be correctly used and maintained in accordance
with the manufacturer’s instructions.
■Use respiratory protection in accordance with
employer’s instructions and as required by
occupational health and safety regulations.
NOISE HAZARDS
■Exposure to high noise levels can cause permanent,
disabling hearing loss and other problems, such
as tinnitus (ringing, buzzing, whistling or humming
in the ears). Therefore, a risk assessment and
implementation of appropriate controls for these
hazards are essential.
■Appropriate controls to reduce the risk may include
actions such as damping materials to prevent work
pieces from “ringing”.
■Use hearing protection in accordance with employer’s
instructions and as required by occupational health
and safety regulations.
■Operate and maintain the assembly power tool
for threaded fasteners as recommended in the
instructions handbook, to prevent an unnecessary
increase in noise levels.
■If the assembly power tool for threaded fasteners has
a silencer, always ensure it is in place and in good
working order when the assembly power tool for
threaded fasteners is operating.
■Select, maintain and replace the consumable/inserted
tool as recommended in the instructions handbook, to
prevent an unnecessary increase in noise.
VIBRATION HAZARDS
The information for use shall draw attention to vibration
hazards that have not been eliminated by design and
construction and remain as residual vibration risks. It
shall enable employers to identify the circumstances in
which the operator is likely to be at risk from vibration
exposure. If the vibration emission value obtained using
ISO 28927-2 does not adequately represent the vibration
emission in the intended uses (and foreseeable misuses)
of the machine, additional information shall be supplied
to enable the risks arising from vibration to be assessed
and managed.
For recommended interface dimensions for spindles and
drive adapters to help reduce vibrations, see ISO/TS
21108.
■Exposure to vibration can cause disabling damage to
the nerves and blood supply of the hands and arms.
■Keep the hands away from the nutrunner sockets.
■Wear warm clothing when working in cold conditions
and keep your hands warm and dry.
■If you experience numbness, tingling, pain or whitening
of the skin in your fingers or hands, stop using the
assembly power tool for threaded fasteners, tell your
employer and consult a physician.
■Operate and maintain the assembly power tool
for threaded fasteners as recommended in the
instructions handbook, to prevent an unnecessary
increase in vibration levels.
■Do not use worn or ill-fitting sockets or extensions, as
this is likely to cause a substantial increase in vibration.
■Select, maintain and replace the consumable/inserted
tool as recommended in the instructions handbook, to
prevent an unnecessary increase in vibration levels.
■Sleeve fittings should be used where practicable.
■Support the weight of the tool in a stand, tensioner or
balancer, if possible.
■Hold the tool with a light but safe grip, taking account
of the required hand reaction forces, because the risk
from vibration is generally greater when the grip force
is higher.

3
ADDITIONAL SAFETY INSTRUCTIONS FOR PNEU-
MATIC POWER TOOLS
■Air under pressure can cause severe injury.
■Always shut off air supply, drain hose of air pressure
and disconnect tool from air supply when not in use,
before changing accessories or when making repairs;
■Never direct air at yourself or anyone else.
■Whipping hoses can cause severe injury. Always
check for damaged or loose hoses and fittings.
■Cold air shall be directed away from the hands.
■Do not use quick-disconnect couplings at tool inlet
for impact and air-hydraulic impulse wrenches. Use
hardened steel (or material with comparable shock
resistance) threaded hose fittings.
■Whenever universal twist couplings (claw couplings)
are used, lock pins shall be installed and whipcheck
safety cables shall be used to safeguard against
possible hose-to-tool and hose-and-hose connection
failure.
■Do not exceed the maximum air pressure stated on
the tool.
■For torque-control and continuous-rotation tools, the
air pressure has a safety critical effect on performance.
Therefore, requirements for length and diameter of the
hose shall be specified.
■Never carry an air tool by the hose.
SYMBOLS
Safety alert
CE conformity
Please read and understand all instructions
before operating the product, follow all
warnings and safety instructions.
Please read the instructions carefully before
starting the product.
Wear eye protection.
Wear ear protection.
Lubricate with air tool oil daily.
SPECIFICATIONS
Square drive 12.7 mm (1/2”)
Capacity bolt size 16 mm (5/8”)
No-load speed 7,800/min
Max. torque 569 N.m
Avg. air consumption 184 L (6.5 cfm)
Maximum working pressure 6.3 bar (90 psi)
Air inlet size 6.35 mm (1/4”)
Air hose ID 9.52 mm (3/8”)
Weight 2.1 kg
A-weighted sound pressure
level 95.1dB(A), k=3dB
Sound power level 106.1dB(A), k=3dB
Vibration value 5.778 m/s2
Uncertainty 1.33 m/s2
Noise emission values are in accordance with
EN ISO 4871 and EN ISO 15744.
Vibration emission values are in accordance with
EN12096, EN28662-1 and EN ISO 8662-7.
APPLICATION
The product comes with durable twin-hammer impact
wrench mechanism, pressure-feed lubrication, adjustable
power regulator, variable speeds, high torque, front
exhaust, sheer power and performance features to tackle
the toughest jobs with ease and proven durability and
economy. The product is used as a wrench. Any other use
is forbidden.
– Used for tires, suspension, frames and other
heavy duty automobile works
– Twin hammer mechanism provides more power,
smooth torque transfer and low vibration
– Lightweight composite material housing and
aluminum front housing
– Soft grip for extra comfort and control
RESIDUAL RISKS
Even if you are operating this product in accordance
with all the safety requirements, potential risks of injury
and damage remain. The following dangers can arise in
connection with the structure and design of this product:
1. Health defects resulting from vibration and noise
emission if the product is being used over long periods
of time or not adequately managed and properly
maintained.

4
2. Injuries and damage to property due to broken cutting
attachments or the sudden impact of hidden objects
during use.
3. Danger of injury and property damage caused by
ying objects.
AIR SUPPLY AND OPERATION
■Ensure the air valve (or trigger) is in the “off” position
before connecting to the air supply.
■Required air pressure of 6.3 bar (90 psi), and an air
flow according to specifications.
■Connect the product to the air hose.
■Place the socket over the subject nut and depress the
trigger to operate the tool.
■Press the trigger to operate the product.
■Turn the adjustment knob to change the rotational
direction and adjust the torque (available for clockwise
direction) of the tool.
■Do not use any additional force upon the tool.
■Do not allow the product to free run for an extended
period of time as this will shorten its life.
■Release the start and stop device in the case of an
interruption of the air supply.
■Disconnect the product from the air supply before
changing accessories or making adjustments.
WARNING
Ensure the air supply is clean and does not exceed
6.3 bar (90 psi) while operating the product. Too high an
air pressure and unclean air will shorten the product's
life due to excessive wear, and may be dangerous
causing damage and/or personal injury.
LUBRICATION
An automatic in-line lter-regulator-lubricator is
recommended (Fig. 5) as it increases product life and
keeps the product in sustained operation. The in-line
lubricator should be regularly checked and lled with air
tool oil.
Proper adjustment of the in-line lubricator is performed by
placing a sheet of paper next to the exhaust ports and
holding the throttle open for approximately 30 seconds.
The lubricator is properly set when a light stain of oil
collects on the paper. Excessive amounts of oil should be
avoided.
If it becomes necessary to store the product for an extended
period of time (overnight, weekend, etc.), it should receive
a generous amount of lubrication at that time. The product
should be run for approximately 30 seconds to ensure oil
has been evenly distributed throughout the product. The
product should be stored in a clean and dry environment.
●It is most important that the product be properly
lubricated by keeping the air line lubricator filled
and correctly adjusted. Without proper lubrication
the product will not work properly and parts will
wear prematurely.
●Use correct lubricant in the air line lubricator. The
lubricator should be of low air flow or changing air
flow type, and should be kept filled to the correct
level. Use only recommended lubricants, specially
made for pneumatic applications. Substitutes
may harm the rubber compounds in the product's
O-rings and other rubber parts.
IMPORTANT!
See Figure 5.
If a lter/regulator/lubricator is not installed on the air
system, air operated tools should be lubricated at least
once a day or after 2 hours of work with 2 - 6 drops
of oil, depending on the work environment, directly
through the male tting in the tool housing.
LOADING AND OPERATION
WARNING
Ensure the air supply is clean and does not exceed
6.3 bar (90 psi) while operating the product. Too high an
air pressure and unclean air will shorten the product's
life due to excessive wear, and may be dangerous
causing damage and/or personal injury.
■Line pressure should be increased to compensate for
unusually long air hoses (over 8 metres). The minimum
hose diameter should be 6.35 mm (1/4”) I.D. and the
fittings must have the same inside dimensions.
■Keep hose away from heat, oil and sharp edges. Check
hose for wear, and make sure that all connections are
secure.
■Any accessory that is exposed to continuous strain
after a long period of use can break due to fatigue.
■Unexpected tool movement or breakage of inserted
tool may cause injuries to the lower limbs.
■Holding the inserted tool by the free hand can be a
source of vibration damage. This practice is forbidden.
■Do not use a worn or damaged tool or accessory.
■Loss of power or erratic action may be due to the following:
– Excessive drain on the air line. Moisture or
restriction in the air pipe. Incorrect size or type of
hose connectors. To remedy check the air supply.
– Grit or gum deposits in the tool may also reduce
performance. If your model has an air strainer
(located in the area of the air inlet), remove the
strainer and clean it.

5
■Use the product only for its intended purpose.
MAINTENANCE
■Keep the product safe by regular maintenance.
■Always keep your air tool clean and lubricated. Daily
lubrication is essential to avoid internal corrosion and
possible failure.
■Lubricate the product daily with a few drops of air tool
oil dripped into the air inlet.
■Maintenance shall be performed weekly.
■Drain the air tank daily. Water in the air line will
damage the product.
■If the product cannot be used anymore, make sure to
dispose of it so as not to impose hazards on people
and the environment.
■Air tool white oil is recommended for lubrication.
■Only lubricants recommended by the manufacturer
should be used.
■Clean the air inlet filter weekly.
TROUBLESHOOTING
WARNING
If any of the following symptoms appears during
operation, stop using the product immediately, or
serious personal injury could result. Only qualied
persons or an authorised service centre can perform
repairs or replacement of the product.
Disconnect the product from the air supply before
attempting repair or adjustment. When replacing O-rings
or cylinder, lubricate with air tool oil before assembly.
PROBLEM: Product runs at normal speed but fails
under load.
POSSIBLE CAUSES
■Motor parts are worn.
■Cam clutch is worn or sticking due to lack of lubricant.
REMEDIES
■Lubricate clutch housing.
■Check for excess clutch oil. Clutch cases need only
be half full. Overfilling can cause drag on high speed
clutch parts, i.e. a typical oiled/lubricated tool requires
14.20 ml (1/2 ounce) of oil.
Grease lubrication
NOTE: Heat usually indicates insufficient grease in
chamber. Severe operating conditions may require
more frequent lubrication.
PROBLEM: Product runs slowly. Air ows slightly
from exhaust.
POSSIBLE CAUSES
■Motor parts are jammed with dirt particles.
■Power regulator is in closed position.
■Air flow is blocked by dirt.
REMEDIES
■Check air inlet filter for blockage.
■Pour air tool lubricating oil into air inlet as per instructions.
■Operate the product in short bursts quickly reversing
rotation back and forth where applicable.
■Repeat above as needed.
PROBLEM: Product will not run. Air flows freely from
exhaust.
POSSIBLE CAUSE
One or more motor vanes are stuck due to material
build up.
REMEDIES
■Pour air tool lubricating oil into air inlet.
■Operate the product in short bursts of forward and/or
reverse rotation where applicable.
■Tap motor housing gently with a plastic mallet.
■Disconnect the air supply. Free the motor by rotating
drive shank manually where applicable.
■If the product remains jammed, return to the service
centre.
PROBLEM: Product will not shut off.
POSSIBLE CAUSE
‘O’ rings throttle valve is dislodged from seat inlet
valve.
REMEDY
Replace the ‘O’ ring.
NOTE: Repairs should be carried out by a qualied
person.

6
PARTS LIST
No. Description No. Description No. Description No. Description
1 Washer 12 Front cap 23 Rotary controller 34 Exhaust deector
2 Head 13 Rotor 24 O-ring 34 x 1.8 35 Washer
3 Gasket 14 Rotor blade 25 Sealing cover 36 O-ring 15 x 2.65
4 Anvil bushing 15 Bolt 4 x 46 26 Spring 37 Retaining ring
5 Washer 16 Cylinder 27 Steel ball 38 Plug cover
6 O-ring 7.5 x 1.8 17 Cylinder cap 28 Screw M5 x 88.5 39 Plug
7 Output shaft 18 Bearing 6001 29 Bolt 2.5 x 33 40 Valve stem
8 Hammer cage 19 Circlip 30 O-ring 3 x 1 41 Spring
9 Hammer pin 20 Housing 31 Trigger 42 Air inlet
10 Hammer dog 21 Gasket 32 Bolt
11 Bearing R8 22 O-ring 50 x 1.8 33 O-ring 35 x 1.8 (Red)

Techtronic Industries (Australia) Pty. Ltd.
Level 1, 660 Doncaster Road
Doncaster, VIC 3108, Australia
Techtronic Industries New Zealand Ltd.
18-26 Amelia Earhart Avenue
Mangere, Auckland 2022, New Zealand