English Ð 3
General instructions
This workshop manual gives detailed instructions
on how to troubleshoot, repair and test a chainsaw.
This section also describes the various safety
precautions that should be taken when carrying out
repairs.
The workshop manual has been written for person-
nel who are assumed to have general experience
of repairing and servicing chainsaws.
Workshops where chainsaws are repaired must be
e uipped with safety e uipment that meets local
regulations.
No-one should carry out repairs on a chainsaw
until they have read and understood the contents
of this workshop manual.
Chainsaws are type-approved to meet the relevant
safety legislation, but this only applies when the
saw is Þ tted with the cutting e uipment speciÞ ed
in the userÕs manual. The Þ tting of any other
e uipment, or of accessories or parts that are not
approved by Jonsered, could mean that the saw
no longer meets these safety re uirements and
the person who carried out the work may be held
responsible for its non-conformance.
In this workshop manual the following boxes
indicate where caution should be taken.
Sp
ecial instructions
The fuel that is used in a chainsaw poses the fol-
lowing ha
z
ards
:
¥
The fuel and its fumes are toxic.
¥
M
ay cause irritation to skin or eyes.
¥
M
ay cause breathing difÞ culties.
¥
H
ighly
ß
ammable.
When using compressed air the air
j
et should
never be pointed at the body.
A
ir can be forced into
the bloodstream and cause fatal in
j
ury.
Wear ear protection when testing saws.
A
fter testing a saw do not touch the silencer until
it has cooled down. The silencer gets very hot and
you may burn yourself. Wear protective gloves
when working on the silencer.
The guide bar, chain and clutch cover
(
chain
brake
)
must be Þ tted before the saw is started. If
not, the clutch may come loose and cause in
j
ury.
P
oor chain lubrication can result in failure of the
chain, which could cause serious or fatal in
j
ury.
Take care to ensure that the spring inside the
starter assembly does not
ß
y out and cause in
j
ury.
Wear eye protection. If the spring is under
compression when the pulley is removed it could
ß
y out and cause in
j
ury.
B
efore removing the tensioning spring from the
chain brake, ensure that the brake is in the on
position, otherwise the spring may
ß
y out and
cause in
j
ury.
A
fter completing the repair the chain brake must be
tested, see
Ò
Chain brake Ð reassembly
\
O
perating
test
Ó
.
A
lways consider the Þ re risk.
A
chainsaw can
produce sparks that could start a Þ re.
Inspect the chain catcher and replace it if it is
damaged.
WARNIN
G
!
Th
e
w
arnin
g
te
x
t
w
arns o
f
t
h
e ris
k
o
f
p
ersonal in
j
ur
y
i
f
t
h
e instruc
-
tions are not
f
ollo
w
e
d.
NOTE!
Th
e
w
arnin
g
te
x
t
w
arns o
f
t
h
e ris
k
o
f
m
aterial
d
a
m
a
g
e i
f
t
h
e instructions are
not
f
ollo
w
e
d.
S
a
f
et
y
re
g
ulations
