FIXED-BASE ROUTER - 054-6908-8
FIXED-BASE ROUTER - 054-6908-8
27
28
RATE OF FEED
(figs 16 and 16a)
The proper rate of feed depends on several
factors: the hardness and moisture content of
the workpiece, the cutting depth, and the cutting
diameter of the bit. Use a faster rate of feed when
cutting shallow grooves in soft woods, such as
pine. Use a slower rate of feed when making deep
cuts in hardwoods, such as oak.
Feeding too quickly
(fig 16)
Clean and smooth finished cuts can only be
achieved when the cutter bit is rotating at a
relatively high speed, taking very small bites, and
producing tiny, clean-cut chips.
Forcing the feed of the cutter bit forward too
quickly slows the RPM of the cutter bit, and the
bit takes larger bites as it rotates. Larger bites
mean larger chips and a rougher finish. This
forcing action can also cause the router motor to
overheat.
Under extreme force-feeding conditions, the rotation can become so slow and the bites so large that
chips are only partially cut off, causing splintering and gouging of the workpiece.
The router will make clean, smooth cuts if it is allowed to run freely, without the overload of forced
feeding. Forced feeding can be detected by the sound of the motor. The usual high-pitched whine will
sound lower and stronger as it loses speed. Holding the router against the workpiece will also cause
strain and increase the difficulty.
Feeding too slowly
(fig 16a)
When the cutter bit is fed too slowly, the rotating cutter bit does not cut into new wood fast enough to
take a bite. Instead, it scrapes away sawdust-like particles. This scraping produces heat, which can
glaze, burn, and mar the cut in the workpiece and in extreme cases, overheat the cutter bit.
When the cutter bit is scraping instead of cutting, the router is more difficult to control.
With almost no load on the motor, the cutter bit has tendency to bounce off the sides of the cut in the
workpiece, producing a cut that has a rippled finish instead of clean, straight sides.
Chip guard
(fig 17)
WARNING!
ALWAYS
wear eye protection. The chip
guard is not intended as a safety guard.
WARNING!
ALWAYS turn the motor off and unplug
the router from the power source
before making any adjustments or
installing accessories. Failure to turn the motor off and unplug the router could result in
accidental starting, which can cause serious personal injury.
To remove the chip guard from the fixed base, press inward on its tabs until the chip guard releases
from the base, and then remove it. To attach the chip guard, place it back in position, and flex the sides
while pushing it in until it snaps back into place (fig 17).
WARNING!
The chip guard helps keep dust and chips away from the operator. It will not stop objects
larger than woodchips that are from the bit.
CAUTION!
ALWAYS
have the chip guard in place on the base when operating the router.
WARNING!
ALWAYS
turn the motor off, and unplug the router from the power source before making
any adjustments or installing accessories. Failure to turn the motor off and unplug the
router could result in accidental start-ups, which can cause serious personal injury.
OPERA
TING INSTR
UCTIONS
Tabs
fig 17
fig 16
Bit Shank
Cut
Cutter
TOO FAST
fig 16a
Bit Shank
Cut
Cutter
TOO SLOW
OPERA
TING INSTR
UCTIONS
Summary of Contents for 054-6908-8
Page 1: ...INSTRUCTION MANUAL FIXED BASE ROUTER 054 6908 8...
Page 21: ......