GENERAL INFORMATION
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Impact Drivers
An impact driver provides extra force for removing
fasteners by converting the impact of a hammer into a
turning motion. This makes it possible to remove
stubborn fasteners without damaging them. Impact
drivers and interchangeable bits (Figure 10) are
available from most tool suppliers. When using a
socket with an impact driver. Make sure the socket is
designed for impact use. Refer to Socket Wrenches.
Ratchets and handles in this section.
WARNING
Do not use hand sockets with air or impact
tools because they may shatter and cause
injury. Always wear eye protection when
using impact or air tools
Allen Wrenches
Use Allen or setscrew wrenches (Figure 11) on
fasteners with hexagonal recesses in the fastener
head. These wrenches are available in L-shaped
bar. Socket and T-handle types. A metric set is
required when working on most motorcycles. Allen
bolts are sometimes called socket bolts.
Torque Wrenches
Use a torque wrench with a socket, torque
adapter or similar extension to tighten a fastener to
a measured torque. Torque wrenches come in
several drive sizes (1/4, 3/8, 1/2 and 3/4) and have
various methods of reading the torque value. The
drive size indicates the size of the square drive that
accepts the socket, adapter or extension. Common
methods of reading the torque value are the
deflecting beam, the dial indicator and the audible
click (Figure 12).
When choosing a torque wrench, consider the torque range, drive size and accuracy. The torque
specifications in this manual provide an indication of the range required.
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