·C UTTER SETTING
7.
The
knives
are
held in
the
cutterblock
by a
steel
.clamping
bar
secured
with 5 -
t"
·
whit
heat
treated
sockethead
screws.
When
the
locking
screws
are
released
the
cutters
are
ejec!edslightly
by
lI:
small
leaf
spring.
This
is
to
facilitate
easy
cutter
setting
with
,
the
specIal
gauge supplied. As
the
amount
of
cutter
projection
is
vital
to:
the
correct
operation
of
the
machine
it
is
most
important
that
the
actual
gauge supplied with
the
"
machine
should
be
used. Should any
other
method of
cutter
setting
be
employed
the
amount of
cutter
prbjection
must
be
exactly
the
same
as. with
that
given
by
the
setting
gauge supplied and failure
to
observe
this
instruction
will result:
ille
poor
finish.
To
remove
the
cutters
and
re-set
with
''Bursgreen''
cutter
setting
gauge proceed: as. follows
:.-
1.'
Move
the
fence to
rear
of
the
table
and
lower both planing tables'.to-
their
lowest:
position.
2.
Turn
the
cutterblock
to approximately the position shown
in
Fig.,
7"
and
slacken
the
securing
screws
until
the
knife
is
just
free
of
the
cutterblock.
Care
shti'tilt\:Jle,
taken
when loosening
the
last
screw
as'
the
knives
are
spring
loaded. .
The
knives
can
now
be
removed
for
grinding
or
replacing.
When grinding
Itts:
most
important
that knives
are
ground
dead straight:
and
balanced
in.
pairs
or
sets
•.
An efficient
re-grinding
service
is. available.
Charges
are
moderate
and
service
prompt.
To
avail
yourself
with
this
service,
return
cutters
to:-
BURSGREEN(DURHAM) LIMITED
FENCE
HOUSES,.
HOUGH
TON
LE SPRING, CO. DURHAM.
3.
To
re-set
the knives,
the
cutterblock
should
be
in
approximately
the
position. shown
in
Fig. 7.
Place
the knife
in
the
slot
making
sure
that
all
faces
are
clean.and
the
clamping
bar.
free
from
burrs.
Press
the
knife into
the
cutterblock
with
the
setting
device
in
Fig. 7 until
the
four
predominant pads
rest
on
the
outer,
surface
of.
the
cutterblock
and
the
end
stop
plate
is
pressed
against
the
rebate
side
of
the
back
planing
table.
Position
theknifeJ;;o-
that
its'
end
butts
against
the
stop
plate
So·
as
to
line
up the
tip
of
the
knife
with.
tile
.
edge
of
the
back table.
4.
Holding
the
setting
device
securely
in
this
position, tighten
the
securing
screws.
Before
fully tightening
the
screws,
check
that
they
have.
not moved
ille
the
setting
process.
The cutting edge should
now
be
dead
parallel
to
the
planing
tables
and
the
edge
in
line
with
the
back
planing
table
edge.
Check
that
all
the securing'
screws
have
been
tightened
before
setting
the
next knife
..
5.
Rotate
the
cutterblockuntil
the
next
knife
is
in
position and
repeat
the
procedure
until
.
all
the
knives have
been
set.
6.
To check
the.
setting
of
the
knives
raise
the
back
table
to
its
top. position
i.
e.
the
zero
mark
on
the
rule
or
1/16"
above
the
outer
surface
ofthecutj:erblock.
Place
a
straight
edge on
the
table
as
shown
in
Fig. 8
and
rotatethecutterblockby
hand until
the
knife
just
touches
the
straight
edge.
Repeat
this
check
in
various
pOSitions
over
the
width of
the
table to
ensure
the
knife
is
parallel.
Repeat
this
procedure
for
all
knives.
7.
When changing
cutters'
it
is
advisable
to
check
that
all
the
locking screws:
are
adeqnately
lubricated
and
quite
free.
Periodically
examine
for
damage
or
cracks
particularly
in,
the
hexagon hole. Any doubtful
screws.
should.
be
replaced
and:
all
screws
well
lubricated
with "Molyslip"
or
similar
oil~
bllforereplacing.
CUTTER
CARE
_
The
cutters
supplied
are
12t"
(311mm) long x
It"
(32mm)
wide.
x 1/8" (3mm) thick
in
balanced
sets.
·They
should
be
kept
in
balanced
sets,
by
ensuring;
that
t~~
cutters
have
· equal
dimensions
after
grinding
and
that
the,
cutter
edge
is
straight.
and'parallel
to.
the
'back
edge.
For
general
work, knife
angles
for
soft
and
hard
woods
are
recommended
as
in
Fig~
9 (a) and (b).
'.
When a
very
fine finish
is
required
in
dry
soft and
hard
woods a
slight
front
bevel
is
.given
as
in
Fig.
9 (c)'and (d);
For
wet
or
green
timber
the
cutting
bevel
maybe
decreased
.
five
degrees,
but
the
front
b~velshould
not
be
given. .
