General Information
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 UTV’s. 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). A
torque wrench is a precision tool that
must be properly cared for to remain
accurate. Store torque wrenches in their
case or separate padded drawers within
a toolbox. Follow the manufacturer’s
instructions for their care and
calibration.
Torque Adapters
Torque adapters or extensions extend
or reduce the reach of a torque wrench.
The torque adapter,(Figure 13), is used
to tighten a fastener that cannot be
reached because of the size of the
torque wrench head, drive, and socket.
If a torque adapter changes the effective
lever length the torque reading on the
wrench will not equal the actual torque
applied to the fastener. It is necessary to
calculate the torque setting on the
wrench to compensate for the change of
lever length. When using a torque
adapter at a right angle to the drive
head, calculation is not required,
because the effective length has not
changed.
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