LITHIUM SERIES® Electric Torque Tool (BTM-DOC Models) Operations Manual
17
SET TORQUE
SET ANGLE
SET RELEASE
• Set the Torque Value is set by simply pushing the left button f to increase the torque or by pushing the right button i to
decrease the torque.
• Torque may be set to any value from the minimum to the maximum capability of the tool (or MAX MIN Torque Limits set
in the ADMIN menu).
• Output units may be displayed in lb-ft, N-m, kgf-m or %. (See output unit settings under the ADMIN menu)
• The Torque rotational direction arrow and the rotating nut icon reflect the fastener clockwise or counter clockwise
rotation associate with the specific fastener type. (The fastener type may be set under the Operation – Fastener Type
menu: Right-Hand, Left-Hand, HYTORC NUT and HYTORC Washer).
• Certain bolt tightening specifications may require an Angle Value in-addition to or instead of a Torque Value.
• The tool provides the ability to set an Angle value anywhere from 0 degrees to 360 degrees.
• The Angle Value is increased simply by pushing the left button
f to increase the angle or by pushing the right button i
to decrease the angle.
• If an Angle Value is set the gun will add the desired angle of rotation by applying additional torque after the completed
torque operation up to the maximum output of the tool.
• The angle feature is actuated by continuing to hold the trigger after the tool successfully completes the TORQUE.
• The angle force is applied after a time delay set in the Angle Delay menu – typical ½ second to 3 seconds.
• When the tool achieves the TORQUE value (and ANGLE if set) the motor automatically stalls and the gear box continues
to exert force (and reaction force) essentially locking the tool onto the nut.
• The gun provides a feature to release the tool from the nut by setting a RELEASE Angle to reverse the motor slightly thus
taking the applied force o the gear box and reaction point and releasing the tool from the nut without loosening the nut.
• The RELEASE Angle Setting may vary depending on the application and may need to be developed iteratively by testing
the value on the application; the objective is to set the minimum RELEASE angle required to release the tool without
applying a force in the opposite direction that would turn or loosen the nut.
• While the tool has a capability to set the RELEASE between 0 and 359 degrees, the RELEASE is typically set on the lower
end and less than 10 degrees (1-to-3 degrees for HYTORC Washer, or 3-to-7 degrees for reaction arms) so that nut is not
loosened. Under certain conditions the operator may need higher RELEASE Angle settings and these should be verified
to make sure that the nut is not being loosened by the higher setting.
• The automatic release feature is actuated by continuing to hold the trigger after the tool successfully completes TORQUE
(and ANGLE if set).
• During the operation the screen will change to show the release angle and direction, the tool motor will reverse by the
desired release angle and then stall again to allow the tool to be removed from the nut.
• The RELEASE Angle is applied following application of TORQE (and ANGLE if set) and after an additional time delay set
in the Angle Delay menu – typical ½ second to 3 seconds.
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