As the steering wheel adjusting nut is slackened off the expander bolt extension, on which it is mounted, rides up the expander bolt until its flanged end contacts the lower contact plate of the horn ring assembly.
Reactionary movement causes the expander bolt to move downwards and release its grip on the splined extension piece, permitting the latter freedom of move-ment within the inner column. As the steering wheel is mounted on the splined extension piece, it can be raised or lowered as required.
When the steering wheel adjusting nut is tightened, the tapered end of the expander bolt expands the splined extension piece within the inner column; thus, the steer-ing wheel will become locked at that height.
Adjusting the height (FIg. 1)
I. Release the steering wheel by slackening off the steering wheel adjusting nut in the centre of the steering wheel until it "clicks".
2. Slide the steering wheel, up or down, to the desired height.
3. Lock the steering wheel by rotating the adjusting nut clockwise.
To remove and refit (Fig. 1)
1. Remove the horn ring assembly from the steering wheel centre, see under "Horn ring assembly To remove and refit".
2. Remove the conical shaped spring from inside the steering wheel centre by unscrewing the expander bolt extension.
3. Remove the steering wheel nut from inside the steer-ing wheel centre.
4. Identify the position of the steering wheel on the splined piece when the existing components are to be refitted and remove the steering wheel from the taper and parallel splines of the splined extension piece.
5. Refitting is the reverse of the removal sequence but particular attention must be given to the following:
(i) The front wheels are set in the straight ahead position and the steering wheel fitted so the two spokes are in the horizontal position and the oblong shaped hole is in the six oclock position.
(ii) The conical shaped spring Is fitted small end downwards on top of the steering wheel nut before the expander bolt extension is fitted and the contact surfaces are smeared with Shell Grease S.B.2498.
|TELESCOPIC STEERING COLUMN
The steering column consists of an inner and outer column with a spring loaded ball race at each end. The bottom end of the inner column has parallel splines and fits into the yoke of the top universal joint of the lower steering column assembly while the upper end is swaged out to accommodate the telescopic unit.
The swaging at the top of the inner column has parallel splines on its internal surface to accommodate the splined extension piece, the upper and protruding end of which has a taper and a second set of parallel splines for the steering wheel attachment. A dowel retains the splined extension piece within the inner column and limits its upward and downward travel.
The lower end of the splined extension piece is slotted and has an internal taper to accommodate the external taper on the bottom of the expander bolt fitted through the hollow centre of the splined extension piece.
An extension is screwed on to the expander bolt and the steering wheel adjusting nut is mounted on top by two flats and a bolt. The lower end of this expander bolt extension has a flange which will bear against the under-side of the horn ring assembly or the top of the steering wheel securing nut when the adjusting nut Is slackened off or tightened thus lowering or raising the expander bolt to unlock or lock the splined extension piece on which the steering wheel is mounted.
A nylon circllp, fitted on the top end of the expander bolt and situated under the expander bolt extension, prevents the expander bolt dropping out of the splined extension, when the expander bolt extension is removed.
To remove and refit
1. Remove the steering column cowlings from the steering column, see under "Steering column cowl-ings To remove and refit".
2. Remove the horn ring assembly from the steering wheel, see under "Horn ring assembly To remove and refit".
3. Remove the direction Indicator switch from the steer-ing column, see under "Direction indicator switch To remove and refit".
4. Slacken off the two bolts securing the X shaped crash rail support bracket beneath the instrument facla.