Sturtevant Richmont 10191, Руководство пользователя

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The tool and joint do not stop interacting the instant the tool shuts off. All of the rotating
components in the tool have momentum from the rotation. Once the power shuts off, these
components (motor shaft, drivetrain components, chuck, and bit or socket) continue to inter-
act with the fastener until all momentum is dissipated. This is discussed in more depth, and
with diagrams, in a later chapter. For now it is merely important to note that this is one of
the primary reasons that filters and joint simulators are used.
Non-Shutoff Power Tools (Manual Shutoff)
Non-shutoff or manual power tools continue to apply torque as long as power is present and
the tool is activated. The torque actually transmitted to the fastener will not perpetually
increase, even when the tool is activated for a long period of time. Once the fastener torque
has increased to the maximum output of the tool, either the tool will stall or the applied
torque will simply stop moving the fastener because the torque is less than that already on
it.
Pulse Tools - Special Considerations
A pulse tool is essentially an impact tool with a buffer between the hammer and the anvil.
Due to the impacting pulses on the joint, these tools are typically joint sensitive. The actual
torque transmitted to the joint is a function of the peak output of the joint and the joint rate
(hardness or softness). Within limits, the harder the joint, the higher will be the torque on
the fastener at the same torque setting on the tool.
The non-shutoff type of pulse tools has a different test method than automatic shutoff pulse
tools. Both will be addressed later in the manual.