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C8-06
WARNING Risk of Severe Injury
Always use personal protective equipment when operat-
ing the unit. Below are possible hazardous situations:
• Impact blows to the head
• Foot injuries
• Exposure to high noise levels
• Heat, splashes from liquids, impacts, cuts, air con-
taminated with harmful dusts, fumes, mists, sprays,
and vapors.
If not avoided, the above hazardous situations could re-
sult in severe bodily injury or death.
Always use the adequate personal protective equip-
►
ment on your job site.
WARNING Risk of Severe Injury
Always protect the face when working with high-pres-
sure equipment. High-pressure equipment could cause
severe bodily injury.
Always wear goggles and/or face shield.
►
Monitor the pressurized equipment and pay attention
►
to the pressure gauge, because the pressure can in-
crease quite rapidly in case of low volume circuits.
WARNING Projectile Hazard
Never pressurize an unconnected male coupler. Male
couplers are not designed to withstand high pressure, in
the unconnected mode. Pressurizing an unconnected
male coupler can lead to serious bodily injury or death.
If you are left with an unconnected male connection,
►
check the hydraulic hose assembly and correct the
error.
WARNING Projectile Hazard
Unexpected bolt failure can result in serious personal in-
jury or death. Premature bolt failure can lead to parts of
the tensioner or bolt becoming high velocity projectiles.
Never stand in-line with the bolt axis during the ten-
►
sioning or de-tensioning procedure.
Alert all personnel to the consequences of premature
►
bolt failure and clear the area of non essential per-
sonnel before the procedure starts.
Hose handling
• Treat hydraulic hose with respect. Do not sharply bend or
kink the hose when connecting tensioning tools. Be
aware of the minimum bend radius of the hose. Sharply
bending or kinking hose can lead to premature hose rup-
ture.
• Do not drop sharp objects on to the hydraulic hose, do not
drive any type of vehicle over the hydraulic hose. Doing
so will cause internal hose damage and lead to premature
hose failure.
• Always use the correct hose size and air pressure for the
tool.
• Moving equipment: Do not use hydraulic hoses, pump
power or remote cords as means of moving the equip-
ment.
© Atlas Copco Industrial Technique AB - 9846 0623 00
• Never lift tensioning tools by the hydraulic hose or hy-
draulic connections.
• Before pressure is applied to the system check that each
hydraulic hose is connected correctly. Physically pulling
on the connector will determine if the male couplers are
correctly fitted to the female connectors.
Before Operation
• Bolting calculations should only be carried out by trained
and qualified engineers who have been appropriately
trained or have suitable experience in bolting technology.
• Always ensure that all personnel in the near vicinity is
aware that pressurization of high pressure equipment is
about to take place. Cordon off the work area and exclude
anyone from the area who is not involved directly with
the tensioning procedure.
• Bolt tensioning systems should only be used by trained
and experienced personnel familiar with safe operating
practices of bolt tensioning systems.
• Always lift the tensioner from the lifting point on the
frame with a suitable lifting device.
• Thoroughly inspect the main thread of the thread insert
component, look for sign of thread damaged or worn
threads. Replace any worn or damaged parts. Ensure you
have adequate thread engagement between the thread in-
sert component and the bolt being tensioned.
• Never stand in-line with the bolt axis during the tension-
ing or de-tensioning procedure. Unexpected bolt failure
can result in serious personal injury or death. Premature
bolt failure can lead to parts of the tensioner or bolt be-
coming high velocity projectiles. Alert all personnel to
the consequences of premature bolt failure and clear the
area of non essential personnel before the procedure
starts.
• Thoroughly inspect the main thread of the thread insert
component, look for sign of thread damaged or worn
threads. Replace any worn or damaged parts. Ensure you
have adequate thread engagement between the thread in-
sert component and the bolt being tensioned.
• Users must be aware at all times that pressure can build
up very quickly and a member of the tensioning team
should be ready to release pressure at any time.
• Always wear suitable protective clothes including boots,
gloves and eye protection during the tensioning proce-
dure.
• Check that the bolt is capable of taking the initial load ap-
plied by the tensioners. Tensioners are capable of break-
ing bolts if the bolt material is not strong enough to with-
stand the tensioner load.
• It is safe to pressurize the unconnected female coupler fit-
ted to the last tensioner in the circuit.
• If prior to the tensioning operation you have any doubt
regarding the correct and safe use of Atlas Copco bolt
tensioning equipment, please contact Atlas Copco for ad-
vice.
Safety Information
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