Instruction manual

FORK & FRAME SERVICE

STEERING HEAD ADJUSTMENT

The steering head frame races are of the floating self-aligning type and have spherical seats.

Therefore they do not fit tightly in the head lug.

Occasionally test the steering head for correct adjustment by exerting pressure upwards

from the extreme ends of the handlebars.

It is particularly important that the adjustment is tested after the first one hundred miles

because of the initial settling down that always occurs in that period.

Should any shake be apparent, adjust the steering head bearings.

Adjust steering head bearings by :

Jack up the front of the machine so that all weight is taken off the front wheel. (A box

under each footrest serves that purpose.)

Slacken the nuts on the two fork crown studs.

Slacken the domed nut at top of the steering column.

Screw down the nut underneath the domed nut a little at a time (using spanner 017255)

and, while doing so, test the head assembly for slackness by placing the fingers over the

gap between handlebar lug and frame top lug, at the same time exerting upward pressure

by lifting from the front edge of the front mudguard.

Continue to tighten the lower adjusting nut until no perceptible movement can be felt

and yet the steering head is perfectly free to turn, then tighten down the domed nut

in order to lock the adjustment.

Tighten the two fork crown pinch stud nuts,

Remove packing from under footrest.

FRONT FORKS (TELEDRAULIC)

Owing to the unusual construction of the " TELEDRAULIC " fork it is desirable to

understand what, happens in use and, in order to follow clearly the descriptions and

subsequent assembly and adjustment instructions, reference to Illustrations 19 and 20

will be necessary.

As will be seen from the general arrangement drawing, Illustration 20, the main members

of the forks are two long tubes. These are of heavy gauge and are externally ground

to very fine limits. These fork main, inner, tubes are firmly fixed to the handlebar

clip lug by the top bolts 016718 and are clamped to the fork crown by the clamping

studs 016320 and nuts 011635. Upon the external of these tubes are mounted the

springs and sliding members, to which latter the front wheel, mudguards and front

stand are fixed.

The telescopic action of the sliders, combined with the hydraulic dampers, described

later, explain the word " Teledraulic " coined for the description of the fork.