Air Impact Butterfly Wrench
797138
5
silverlinetools.com
General Safety
a) 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 .
b) Only qualified and trained operators should install, adjust, or use the assembly power tool for
threaded fasteners .
c) 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 .
d) Do not discard the safety instructions; give them to the operator .
e) Do not use the assembly power tool for threaded fasteners if it has been damaged .
f) 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 should contact the manufacturer
to obtain replacement marking labels when necessary .
WARNING:
This appliance is not intended for use by persons (including children) with reduced,
physical or mental capabilities or lack of experience or knowledge unless they have been given
supervision or instruction concerning use of the appliance by a person responsible for their safety .
Children must be supervised to ensure that they do not play with the appliance .
Projectile Hazards
a) Be aware that failure of the workpiece or accessories, or even of the inserted tool itself, can
generate high-velocity projectiles .
b) 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 .
c) Ensure that the workpiece is securely fixed.
Entanglement Hazards
a) Entanglement hazards can cause choking, scalping and/or lacerations if loose clothing, personal
jewellery, neckwear, hair or gloves are not kept away from the tool and accessories .
b) Gloves can become entangled in the rotating drive, causing severed or broken fingers.
c) Rotating drive sockets and drive extensions can easily entangle rubber-coated or metal
reinforced gloves .
d) Do not wear loose-fitting gloves or gloves with cut or frayed fingers.
e) Never hold the drive, socket or drive extension .
f) Keep hands away from rotating drives .
Operating Hazards
a) 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 .
b) Operators and maintenance personnel should be physically able to handle the bulk, weight and
power of the tool .
c) Hold the tool correctly; be ready to counteract normal or sudden movements and have both
hands available .
d) Maintain a balanced body position and secure footing .
e) In cases where the means to absorb the reaction torque are requested, it is recommended to use
a suspension arm wherever possible . If that is not possible, side handles are recommended for
straight-case and pistol-grip tools . Reaction bars are recommended for angle nutrunners . In any
case, it is recommended to use a means to absorb the reaction torque above 4Nm for straight
tools, above 10Nm for pistol-grip tools, and above 60Nm for angle nutrunners .
f) Release the start-and-stop device in the case of an interruption of the energy supply .
g) Use only lubricants recommended by the manufacturer .
h) Fingers can be crushed in open-ended crow-foot nutrunners .
i) Do not use in confined spaces and beware of crushing hands between tool and workpiece,
especially when unscrewing .
Repetitive Motions Hazards
a) When using a power tool the operator can experience discomfort in the hands, arms, shoulders,
neck, or other parts of the body .
b) While using an assembly power tool for threaded fasteners, the operator should adopt a
comfortable posture whilst 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 .
c) 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
a) Disconnect the assembly power tool for threaded fasteners from the energy supply before fitting
or changing the inserted tool or accessory .
b) Do not touch sockets or accessories during impacting, as this increases the risk of cuts, burns or
vibration Injuries .
c) Use only sizes and types of accessories and consumables that are recommended by the assembly
power tool for threaded fasteners manufacturer .
d) 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
a) Slips, trips and falls are major causes of workplace injury . Be aware of slippery surfaces caused by
use of the tool and also of trip hazards caused by the air line or hydraulic hose .
b) Proceed with care in unfamiliar surroundings . Hidden hazards, such as electricity or other utility
lines, can exist .
c) 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 .
d) 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
a) 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 .
b) Risk assessment should include dust created by the use of the tool and the potential for
disturbing existing dust .
c) Direct the exhaust so as to minimise disturbance of dust in a dust-filled environment.
d) Where dust or fumes are created, the priority should be to control them at the point of emission .
e) 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 manufacturers
instructions .
f) Use respiratory protection in accordance with employer's instructions and as required by
occupational health and safety regulations .
Noise Hazards
a) 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, risk assessment
and implementation of appropriate controls for these hazards are essential .
b) Appropriate controls to reduce the risk can include actions such as damping materials to prevent
workpieces from ‘ringing’ .
c) Use hearing protection in accordance with employer's instructions and as required by
occupational health and safety regulations .
d) Operate and maintain the assembly power tool for threaded fasteners as recommended in the
instruction handbook, to prevent an unnecessary increase in the noise level .
e) Select, maintain and replace the consumable/inserted tool as recommended in the instruction
handbook, to prevent an unnecessary increase in noise .
f) If the assembly power tool for threaded fasteners has a silencer, always ensure it is in place and
in good working order when the tool is being operated .
Vibration Hazards
a) Exposure to vibration can cause disabling damage to the nerves and blood supply of the hands
and arms .
b) Wear warm clothing when working in cold conditions and keep your hands warm and dry .
c) If you experience numbness, tingling, pain or whitening of the skin in your fingers or hands, stop
using the assembly tool for threaded fasteners, inform your employer and consult a physician .
d) Operate and maintain the assembly tool for threaded fasteners as recommended in the
instruction handbook, to prevent an unnecessary increase in vibration levels .
e) 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 .
f) Do not use worn or ill-fitting sockets or extensions, as this is likely to cause a substantial increase
in vibration .
g) Select, maintain and replace the consumable/inserted tool as recommended in the instruction
handbook, to prevent an unnecessary increase in vibration levels .
h) Sleeve fittings should be used where practical.
i) Support the weight of the tool in a stand, tensioner or balancer, if possible .
Additional Safety For Pneumatic Power Tools
• Air under pressure can cause severe injury:
• Always shut off the air supply, drain hose of air pressure and disconnect 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-disconnected couplings at tool inlet for impact and air-hydraulic impulse
wrenches. Use hardened steel (or 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 .
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