General
S afety
P recautions
The
use
of
any
chain
saw
may
be
hazardous.
At
full
throttle
chain
speed
can
reach
45
mph
(20
m/s).
It
is
important
that
you
read;
fully
understand
and
ob-
serve the following safety precautions and warnings.
Read
t he
O wner's
M anual
a nd
t he
s afety
i nstructions
periodically.
WARNING
!
Reactive
forces,
including
kickback,
can
be
da
n-
gerous. Careless or improper use of any chain saw
may
c ause
s erious
o r
f atal
i njury.
Have your MAKITA dealer show you how to operate
your
c hain
s aw.
O bserve
a ll
a pplicable
l ocal
s afety
regulations, standards and ordinances.
WARNING!
Minors
should
never
be
allowed
to
use
a
chain
saw.
Bystanders, especially children and animals should
not
b e
a llowed
i n
t he
a rea
w here
a
c hain
s aw
i s
i n
use
( fig.
1 ).
Never let the saw run unattended.
Store it in a locked place away from children. Fill the
fuel tank to 7/8 th full (see storing the saw).
Do
n ot
l end
y our
c hain
s aw
w ithout
t his
O wner's
a nd
Safety Manual. Be sure that anyone using your saw
understands the information given.
Proper use of a chain saw involves
1. the operator
2. the saw
3. the use of the saw.
Discription
o f
s ymbols
u sed
o n
c hain
saws:
CSA
S tandards
Class
1 A
ANSI
S tandard
SAE Standard
1
Z62.1-03
Z62.3-04
B175.1-2000
SAE J335
Maximum
Computed
Kickback
Angle
(CKA)*
without
using
the
chain
brake
when
using
the
recommended
bar
and
chain
combinations
Maximum
Computed
Kickback
Angle
(CKA)*
with
using
the
chain
brake
when
using
the
recommended
bar
and
chain
combinations
Contact
o f
t he
g uide
b ar
t ip
w ith
any
o bject
s hould
b e
a voided!
Tip contact may cause the guide
bar
to
move
suddenly
upward
and
b ackward,
w hich
m ay
c ause
serious
i njury!
Always use two hands when
operating the chain saw!
Reduced
Kickback
Bar
and
Chain
c ombination
t hat
h as
b een
evaluated with the power head
to
achieve
kickback
protection
(according to ANSI and CSA
standards).
*
T he
C omputed
K ickback
A ngle
i s
a
c alculated
v alue
from
e nergies
m easured
o n
a
t est
b ench.
I t
i s
n ot the
angle
of
the
guide
bar
moved
upward
in
case
of
a
KICKBACK.
The
o perator
Physical
C ondition
You
must
be
in
good
physical
condition
and
mental
health
and
not
under
the
influence
of
any
substance
(drugs, alcohol), which might impair vision, dexterity
or
j udgment.
WARNING
!
Prolonged use of chain saws exposing the operator
to
v ibrations
m ay
p roduce
W hitefinger
d isease
( Ray-
naud's phenomenon). This phenomenon reduces
the
h and's
a bility
t o
f eel
a nd
r egulate
t emperature,
produces
numbness
and
burning
sensations
and
may cause nerve and circulation damage and tis-
sue necrosis.
All MAKITA saws are therefore provided with an an-
tivibration
s ystem
w hich
i s
e ssential
f or
t hose
u sing
chain
s aws
o n
a
r egular
o r
s ustained
b asis.
A ntivi-
bration
s ystems
d o
n ot
g uarantee
t hat
y ou
w ill
n ot
sustain
W hitefinger
d isesase,
h owever,
t hey
r educe
this
danger
considerably.
Nevertheless,
continual
and
r egular
u sers
s hould
o bserve
t heir
h ands
a nd
fingers
a nd
i n
c ase
o f
a ny
a bnormal
s ymptoms,
s eek
medical advice immediately.
( In
t his
e xample
t he
C KA
i s
4 5°).
( In
t his
e xample
t he
C KA
i s
4 0°).
2
7