LITHIUM SERIES® II ELECTRIC TORQUE TOOL USER INTERFACE GUIDE
. ADVANCED BOLTING
The Advanced Bolting menu contains additional bolting functions that allow the tool to be used in a broad range of
applications. Some advanced functions may require additional training or support beyond that required for Basic
Bolting. In some cases Advanced Bolting functions may be specialized for a particular application or industry.
The Turn Angle function allows the user to tighten a fastener by turning a nut through a specific pre-engineered angle
independent of the torque that has been previously applied. This function is often used with “Turn-of-Nut” procedures,
standard in many structural applications. These approaches are most often two-step procedures where structural
members are first snug-tightened to bring the surfaces into contact and alignment followed by Turn-of-Nut to apply
load to the fastener.
The Turn-of-Nut method is usually verified in the field with a load testing machine. The Turn-of-Nut method also may
require match marking of the fastener to allow post installation inspection. See specific structural assembly guidelines
for the specific job for these procedures.
In Turn-of-Nut applications the exact torque is not defined but rather the engineer of record calculates the specific
angle required to apply the exact load to the fastener. The Turn Angle function is used to complete the Turn-of-Nut
procedure by turning an already snug-tightened nut through the specified angle specified. The Turn Angle function is
accessed through the Advanced Bolting menu. The technician simply adjusts the angle value and then returns to the
Turn Angle screen.
TURN ANGLE
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