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11
"
FIGURE 21
FIGURE 23
FIGURE 24
12
JOINTING
Two Methods
in General
Use
1.
Using
Jointing
Gauge #470163
as illustrated
is simple
and 'accurate.
First
preset
the adjustable plate, using the
feeler
gauge
supplied,
.to the
recommended
joint.
Next place jointing
tool on top
of the
chain with
the
depth
gauge
protuding
through
the
slot in
the
jointing
plate
and resting
on
the
two
cutters
near the
centre of
the
bar.
Using
a
flat file,
file the
depth
gaJug~
to the
level
of the
jointing tool plate.
WARNING:
Always
work near
the
centre
of the bar and
move the
chain each
time,
NOT
the
tool.
This is necessary due to the contour
of all cutter bars.
To operate
your jointing tool at various positions could
give
an uneven joint and a rough cutting
chain.
(Figure
21).
2. If
the above
mentioned Jointing Tool
is not available place
a straight
edge,
long
enough to cover at least six cutters, on top of the chain.
Next check the existing
joint with
a
standard .025 feeler gauge.
If you cannot insert the feeler
give
one
stroke
of
a flat file
and
recheck.
When
correctly
jointed
Y'OU
should just feel
the
drag between the
straight
edge
and
the
top of
the
depth
gauge.
Repeat this
step for each depth
gauge
throughout
the entire
chain.
(Figure
22).
This
method
of
jointing chains is much slower 'and less accurate than with
a
proper
jointing
tool.
3.
Figures 23
and 24
illustrate
two
types
of depth
gauges
used in standard
chains.
E'ither method of jointing
may
be
carried
out on
chains of these
types.
We
recommend that
after
each jointing that
the
front of
the
depth
gauge
be rounded
off to
maintain original contour.
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