Torque Specifications; Fas Teners - Polaris 1999 Sportsman 400 Service Manual

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6
a
lone to
rep
lace
part
s
in
their
proper
location. There
is also
the
possibi lity
of
being
side tracked
and
not
able
to re
turn
to wo
rk fo
r
days
or
even
wee
ks, dur-
ing
whic h time
the
carefully
la
id
out
parts may be-
come disturbed.
17.
Wh
en assembling
part
s,
make sure all shims
and wa
shers are
rein
s talled
exac tly
as they cam e
out.
18.
Whenever
a
rotating
part co ntacts
a
stationary
pa
rt,
loo k for a
shim
or
wash er. Usc new
gas
kets
if
ther e is
any doubt abou
t the
cond
ition of
the o
ld
ones.
A
thin coating
of
o
il
on
non-pressure typ e
gas -
kets may hel
p
them
sca
l
morc effe ctive ly.
19.
Some
co mpo
nents
are he ld
in
p
lace with
se lf-loc king
nut
s. The
locking ability
of
these
nu
ts
is
lessened every time the
y
ar
e insta lled
or
remo ved .
It
is
recommended
that
they be replaced
every tim
e
they
are removed.
20. Use co ld
heavy
greas e
to
ho
ld
sma ll part
s
in
place ifthcy
tend to
fa
ll
out
during
assembly.
How-
ever,
keep grease
and
oil
away
from
electrical
and
brake
components.
TORQUE
SPECIF ICAT IONS
The materials used
in the
manufacture of the Po-
la ris may be s
ubj
ected to
uneven
stresses
if
the
fas-
ten
ers
that ho
ld
the
sub-a
ssemblies are
no
t install ed
and tightened
co
rrectly.
Loose
or
m
issing
fasteners
can
ca use
the
cy
linde r
head
to
warp. cra
nkcase
leaks,
and
premature bearing
and
seal
failure
and
sus pens ion
failure
from
loose
or
m
issing fa steners.
Therefore,
usc
an
accurat
e torque
wrench (de-
scribed in
this
chapter)
together
w
ith the torqu e
specifica tions
listed
at the
end of mo
st
chapters.
To rque spec ifications
throu
gho
ut
this manu a
l
nrc
given
in
Ne
wton-mete rs
(Ns
m).
foot-po und s
(f't.- lb.) and,
where
applicable,
in
inch- pounds
(
in.-Ib.).
Existin g to
rqu
e wre
nches calibrate d in
me
ter
ki-
logra
ms
can
be
used
.
Move
the
deci mal po
int
one
plac
e
to
the right;
for
exampl e,
3.5
m
kg
=
35
Nsm.
T
he exact
mathemati
ca
l
convers ion
is 3.5 mkg
=
34.3
Nsm.
To
math
emati
cally
co nv ert foo t-po unds
to New-
ton
meters
mu
ltiply
the
foot pounds
spec ific atio
n
by
1.3558
to
achieve
a
Nsrn
equiva le nt.
For ex
am
ple
150
ft.-
lb. x 1.3558
=
203
Nsrn
.
Refer to
Table 5 for ge
neral
tor
que
spec ific ati ons
fo
r
vario us size screws, bolt
s
and
nuts not listed
in
CHA PT ER ON
E
the
resp ect ive
chapter tables . To
usc the tab le, first
determine the
size of the bolt
o
r nut. U
se
a vern ier
ca
liper and measure the
insid e
di
men sion
of
the
threads
of the
nul (F ig ur e
3)
and across
the
threads
for a
bolt
(F
igure
4).
FAST ENERS
T
he mat er ials
and
design s
ofthe
various fasteners
use
d on
the
Polaris are each
desig ned fe r a
spec ific
purpose.
Fas
tene r
des
ign
detennines:
the
ty
pe oft oo l
requ ired
to
wo
rk
w
ith
the fastener. Fas
te ner mat
e-
rial
is
carefu lly
selec ted to
decrea se
the po
ssibilit
y
of
physical
failure.
N
uts,
bo lts
and
sc
rews
are
manu
fa ctured
in
a
w
ide
ran
ge of
thr
ead pattern s.
To
join
a
nu
t
and
bo
lt,
th
e
d
iameter of
the
bolt
and the di
am eter of
the
ho
le
in
the
nut mu
st be the
same. It
is
j
ust as im-
portant that
the threads
on
both be
pro
perly
matched.

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