Tightening And Loosening - AcraDyne ABG Series Operation And Service Manual

6.1.1 Tightening and Loosening

Always place the socket/connector completely
and safely on the bolt/nut. The support of the
reaction bar to absorb the reaction torque must
always be safe and stable. Please consult your
AIMCO partner for customized reaction bar
solutions.
An incomplete or incorrect connection or support
will lead to the following when bolting:
– Possible overload fractures of the socket/
connector, gear and even drive square
– Incorrect torque application
– Contusions or severe injuries caused by spun-
off parts or splinters.
Improper usage may also render all warranties null and void.
Never reach between reaction bar and support
point. Doing so presents a high risk of injury.
Operation and Service Manual
Work steps
• Place the ABG nutrunner with socket/connector onto the
bolt/nut.
• The reaction bar must absorb the reaction torque on the
level of the socket/connector (S); a stable abutment (G)
must be provided.
• Always hold the nutrunner perpendicular over the bolt axis.
• Start bolting action.
• The tool will stop as soon as the set shut-off torque or
entered value has been reached.
Before moving to the next bolt / nut:
• If the torque multiplier cannot be pulled off the bolted
joint (torsional forces caused), change the direction of
rotation and switch the tool on and immediately off
again to release the tool.
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