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Issue 3
7) MOUNTING
O F
C UTTERS
The
m achine
h as
b een
m ade
t o
a ccept
c utters
h aving
1 9.05mm
( 3/4")
d ia.
s hanks.
The
f ollowing
p rocedure
i s
t o
b e
u sed
w hen
m ounting
c utters.
Lay
t he
m achine
o n
i ts
s ide
w ith
f eed
h andles
u ppermost,
e nsuring
a rbor
i s
w ound
d own
t o
i ts
l owest
p oint
t o
e nable
a ccess
t o
•
socket
s crews.
Take
a ppropriate
p ilot
a nd
p lace
t hrough
h ole
i n
s hank
o f
c utter.
I nsert
s hank
o f
c utter
i nto
¾ "
d ia.
b ore
o f
a rbor,
e nsuring
•
alignment
o f
t wo
d rive
f lats
w ith
s ocket
s crews
Tighten
b oth
s crews
u sing
h exagon
k ey
R D4088.
•
ALWAYS
D ISCONNECT
M ACHINE
F ROM
P OWER
S OURCE.
8) REMEDIES
F OR
H OLE
M AKING
P ROBLEMS
Problem
1)
M agnetic
b ase
Material
b eing
c ut
m ay
b e
t oo
t hin
f or
e fficient
h olding.
won't
h old
effectively
Swarf
o r
d irt
u nder
m agnet.
Irregularity
o n
m agnet
c ontact
o r
w ork-‐piece.
Insufficient
c urrent
g oing
t o
m agnet
d uring
d rilling
c ycles.
2)
C utter
s kips
o ut
Magnetic
b ase
i s
n ot
h olding
e ffectively.
of
c entre-‐punch
mark
a t
i nitiation
o f
Worn
a rbor
b ushing
a nd/or
e jector
c ollar.
cut
Too
m uch
f eed
p ressure
a t
s tart
o f
c ut.
Cutter
i s
d ull,
w orn,
c hipped
o r
i ncorrectly
s harpened.
Poor
c entre-‐punch
m ark;
w eak
p ilot
s pring;
p ilot
n ot
c entred
in
c entre-‐punch
m ark.
Worn
o r
b ent
p ilot,
w orn
p ilot
h ole.
Loose
b olts
o n
m otor
b ushing
s upport
b racket,
m ain
c asting
or
l oose
g ib
a djusting
s et
s crews.
3)
E xcessive
Incorrectly
r e-‐sharpened,
w orn
o r
c hipped
c utter.
drilling
p ressure
required
Coming
d own
o n
s warf
l ying
o n
s urface
o f
w ork-‐piece.
Gibs
o ut
o f
a djustment
o r
l ack
o f
l ubrication.
Swarf
a ccumulated
( packed)
i nside
c utter.
4)
E xcessive
c utter
Steel
s warf
o r
d irt
u nder
c utter.
breakage
Incorrectly
r e-‐sharpened
o r
w orn
c utter.
Cutter
s kipping.
Slide-‐ways
n eed
a djustment.
Cutter
n ot
a ttached
t ightly
t o
a rbor.
Insufficient
u se
o f
c utting
o il
o r
u nsuitable
t ype
o f
o il.
5)
E xcessive
c utter
See
c ause
a nd
r emedy
a bove
wear
Incorrectly
r e-‐sharpened
c utter.
Insufficient
o r
s pasmodic
c utting
p ressure.
Original Version
Cause
Attach
a n
a dditional
p iece
o f
m etal
u nder
w ork-‐piece
w here
m agnet
w ill
be
l ocated,
o r
m echanically
c lamp
m agnetic
b ase
t o
w ork-‐piece.
Clean
m agnet.
Use
e xtreme
c are;
f ile
a ny
i mperfections
f lush
t o
s urface.
Confirm
p ower
s upply
a nd
o utput
f rom
c ontrol
u nit,
c heck
s upply
c able.
See
c auses
a nd
r emedies
a bove.
Replace!
O nly
a
f ew
t housandths
w ear
p ermissible.
N ew
a rbor
b ushing
is
n eeded.
Light
p ressure
o nly
i s
n eeded
u ntil
a
g roove
i s
c ut.
T he
g roove
t hen
serves
a s
a
s tabilizer.
Replace
o r
r e-‐sharpen.
S harpening
s ervice
i s
a vailable.
Improve
c entre-‐punch
a nd/or
r eplace
w orn
p arts
Replace
p art
o r
p arts
Adjust
w here
n ecessary
R e-‐sharpen
o r
r eplace.
Take
c are
n ot
t o
s tart
a
c ut
o n
s warf.
Adjust
s etscrews,
a nd
l ubricate.
Clear
c utter.
Remove
c utter,
c lean
p art
t horoughly
a nd
r eplace.
Always
h ave
a
n ew
c utter
o n
h and
t o
r efer
t o
f or
c orrect
t ooth
g eometry,
together
w ith
i nstruction
s heet.
See
c auses
a nd
r emedies
( 2).
Tighten
s ideway.
Retighten.
Inject
o il
o f
l ight
v iscosity
i nto
t he
c oolant-‐inducing
r ing
a nd
c heck
t hat
o il
is
b eing
m etered
i nto
c utter
w hen
p ilot
i s
d epressed.
I f
n ot,
c heck
p ilot
groove
a nd
a rbor
i nternally
f or
d irt
o r
a pply
o il
e xternally.
( Even
a
s mall
amount
o f
o il
i s
v ery
e ffective).
Refer
t o
i nstructions
a nd
a
n ew
c utter
f or
p roper
t ooth
g eometry.
Use
s ufficient
s teady
p ressure
t o
s low
t he
d rill
d own.
T his
w ill
r esult
i n
optimum
c utting
s peed
a nd
c hip
l oad.
8
JUNE 2014
Remedy
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