Datsun 1968-1973 510 Owners Workshop Manual page 213

212
Chapter
11
Suspenslon
and
steering
23
Finally check the
sector
shaft
and bush
for
wear
and
correct
alignment
24 When
all
new
pam
and
new
seals
and gaskets have
been
obtaIned
reassembly
can commence
25 FIt the
ball
nut onto
the
worm so
that the ball guIde
holes
ere
uppermost
26 Carefully
Insert
18 ball
beanngs Into
each of the two holes
In
the
same
SIde
as
the
nut
As
the
ball bearings
are
beIng
Inserted
slowly
turn
the
worm
away from the holes untol all 36 have
been
fitted
27 Should the SItuatIon
arise so
that the ball
bearings
are
stopped by the end of the column try uSIng
a
metal rod to
hold
down the ball
bearings that have already
been fItted
and
care
fully rotate
the
column
In
the
opposite dIrectIon untol the
pessalJ8
IS
clear
Now
continue inserting the ball bearings
28 Insert
the 22 ball bearings
Into
the guIde
tubes
Eleven
ball
bearIngs should
be Inserted Into each tube
29
Carefully
hold the gu de tube and USIng
a
little grease
plug
the open ends
30 POSItIon
the
guIde tubes
up
to
the guIde
holes
In
the
ball nut
31 RefIt the
ball
bearing
gUIde retainIng
clamp
to
the ball
nut
32 If the
sector
shaft bushes
are to
be renewed
the old
ones
should
be removed
with
e
drift
Carefully
drift
the
new
bushes
Into
posItIon
SO
that
the
plain end
of the
lower bush
IS
flush WIth
the
001 seal
shoulder
In
the
bore
hOUSIng
33 Take
care to ensure
that
the open end of the 011 groove
In
the
bush
IS facing the ball nut
end
NOT
towards the pItman
arm
If
thIS
IS not done the 001 seal WIll leak
34 Smear
a little
grease onto
the contact
surface of the
new 0
1
seal end
carefully fIt
Into
the
main
hOUSing
35 The bearing
cups and
cones
may now
be fItted to the column
hOUSIng
and steering gearbox
36 FIt the
worm shaft Into
the column
hOUSIng
n Next fIt the shIms
and 0
rings to
the
gear
hOUSing
and
secure
the
cover
WIth the three bolts and
spring
washers
3Il Apply
some
001
to
the upper and
lower
bearings on
the
worm
shaft
39 It
IS now necessary to
edJust
the
worm bearing
pre
oad by
adding
or subtracting
shIms
to
the shIm
pack These
shIms
are
avaIlable
In a
range of
thIcknesses to
enable the correct pre load
to
be
obtained Ideally
the initIal
torque readIng
on
the
column
should
be
555 833
In
f
oz
4 6
Kg
f
cm
before the
sector
shaft
IS
fItted
40 FIt the
backlash
adjustment bolt
to the slot In the sector
shaft and WIth
a
feeler gauge check the
clearance ThIS should
be
00004 00012
In 001 003 mml
ShIms
are
avaIlable
to
obtain
the
correct
clearance
between the head of the bolt and
the
slot
In the
end of
the sector shaft
41 Now
tum
the
worm
shaft
by
hand
untIl
the ball
nut
IS
posItIoned
In
the centra
posItIon
SO as to
allow the centre tooth
1
19
21
14
FIG 11
45 STEERING ll IKAGE COMPONENTS
1
Locknur
2
Nur
3
Clamp
4
Spllr
pm
5 Nut
6
p lJ
8 8racker
9 Socket
10 Socket
11
Side
rod
12
Socket
DusrcotlBr
14 Sacker
15
S
de rod
16 Dust eal
17
Cross
rod
assembly
18 Locknut
19
Plam
washer
20 Nut
21
Bolt
22
Idler assembly
23
Lockwasher
24 Nur
2
5
Sreerlng
gear arm