Owners Manual
STEERING
Jj7
Dismantling
The top cover plate should be removed after extract-
ing the three securing setscrews.
Turn the steering gear over and suitably support the
top face leaving the rocker shaft free to be lightly tapped
out using a soft metal drift. The following peg
is
a
drive fit
in
the rocker and need not be removed unless
showing
an
appreciable amount
of
wear.
Fig. 10. Using Service Tool
lSG
70
to withdraw a
tight steering wheel.
Remove the four setpins securing the end cover
plate
in
position,
and
release the end cover. The com-
plete unit should now be up-ended with the steering box
uppermost.
By
bumping the end
of
the inner shaft on a
block
of
wood, placed on the floor, the worm with its
two ball bearings will be displaced. The complete inner
column can then be withdrawn from the casing through
the open end
of
the steering box.
For
extracting the felt bush
at
the top
of
the column,
use a piece
of
strong hooked wire, the hook pulling on
the under face
of
the bush. The fitting
of
a new bush
is
simple ; smear the felt with heavy oil and press into
place.
Adjusting shims should be fitted behind the end
cover
so
that there
is
no end play
on
the column, but at
the same time they should
not
be pre-loaded, otherwise
damage to the ball races may ensue.
The rocker shaft may now be dropped into position,
ensuring that it is a good fit
in
its housing and
that
the
oil seal at the lower end
of
the trunnion
is
making
good contact.
Adjusting the Gear
The adjuster
in
the cover plate should be slackened
by releasing the locknut and unscrewing the screw a
few
turns. The cover plate can then be fitted making sure
an
oil-tight joint is obtained. The adjuster should be
screwed down until there is no free movement
in
the
straight ahead position
of
the gear
and
the adjustment
secured by the locknut.
Final adjustment should be made once the gear has
been reassembled to the chassis.
It
should be noted that
as
wear in use is normally greater in the straight ahead
position than
on
lock, provision is made for this in the
design
of
the cam, and
it
will be found that there is
a slight end play towards each lock.
It
is essential,
therefore, that adjustment should be made
in
the
straight ahead position
to
avoid the possibility
of
tightness.
The steering gear should be filled with recommended
gear oil via the filler plug situated
at
the rear right-
hand side
of
the steering box and then a final test
made to ensure
that
the movement
is
free from lock to
lock.
Fig.
lL
Using Service Tool
lSG
75
to remove a
double lever.