Shopsmith 555970 - Manual (Page 8)

555970 MARK V – MOUNTED OVERARM PIN ROUTER
8
• When routing oversize stock, always use
at least one push block to help control
the workpiece firmly against the fence.
• Do not work with stock that is too small
or too large to handle safely; that is
warped, bowed or cupped; or that has
loose knots or other defects.
• Plan the operation before you begin. If
you are in doubt about how to complete
an operation safely, do not attempt it. You
can contact your Shopsmith Customer
Service Representative or Store person-
nel for advice.
• Secure the router, overarm assembly,
depth stop rod, depth control handle,
worktable, accessories, safety devices,
fences, and fixtures before turning on the
motor.
TYPES OF
ROUTER BITS
Router bits come in a wide variety of shapes
and sizes designed to be used at very high
speeds.
The part of the bit mounted in the router
chuck is called the shank and the rounded
extension beyond the cutter on some bits is
called the pilot. The cutting edge of the bit
is called a flute. Router bits have one, two
or three flutes and the more flutes there are
on the bit, the more cuts that can be made
per minute. A higher number of flutes re-
duces the load on the motor and produces a
smoother cut.
Quality bits are made of high speed steel,
solid carbide or carbide-tipped steel. High
speed steel bits are heat treated for extra
hardness and to hold keen cutting edges.
Carbide bits (solid or tipped) are the finest
bits available today. Although more expen-
sive, they will outlast high speed steel bits
at a 15 to 1 ratio on softwoods and are highly
recommended for use on hardwoods, plas-
tic laminates, plywood and particleboard.
Router bits are generally classified into four
different categories — grooving bits, edge
cutting bits, panel bits and laminate and ve-
neer trimming bits. (See Chart.)
CARE AND MAINTENANCE
You’ll enjoy longer use of your router bits if
you make it a point to handle, use and
sharpen them properly.
• Use your router bits only for the job they
are intended to do.
• Make sure the bit is mounted rigidly in
the collet.
• Learn to cut your workpiece at the proper
speed to prevent heat buildup that can
cause the loss of bit hardness.
• Between operations, set your bits in a safe
place where they will not fall or get hit.
CAUTION
Never use solvent on a bearing piloted
bit without first removing the bearing.
• After use, clean bits thoroughly.
• Sharpen your bits with a small slip-stone
or oilstone with oil. Hone the face of each
cutter with light strokes in one direction.
Never hone the outside edge because it re-
duces the diameter of the cutter. Hone
each cutter edge with the same number
of strokes.
• If the cutting edge is nicked, take the bit
to a professional sharpening service.