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When this point hs been reached it means that all
the play in the bearings has been taken up, and
a,ny further tightening o£ the cone will put ai` actual
thrust on the steel balls.
This must be avoided at
all costs, and the correct thing to do when the play
has all been taken up as just described, is to un-
screw the cone a. small fraction of a tum.
When
the wheel is now grasped by the tyTe and moved
sideways it should be possible to feel a small amoulit
oí play, or shake, which should not exceed about
l/64th of an inch (g'.e. just about enough to íel
and no more).
When this state of adjustmeiit hag
been arrived at,lock the adjusting cone by returning
the locking wéu3her to its original position (cone may
have to be slacked oÍÏ slightly more if flats are not
. ili line).
Tighteli rear spilidle nut.4 and check play
once more.
Check that the chaini sprocket is quite
" free to tum in the free wheel
(anti-clockwise)
direction.
It may be found that the bearing haË
tightened a little, and readjustment will be required
making allowance íor the effect oí the final tighten-
ing of the spindle put.
Hub l,ock Rlng Adjustment.
Thís lock ring (Part No. 62-297) loca.ted immed-
iately behind the chain sprocket, is locked fi_ly
'home before the unit is despatched from the works.
However, every engine, irresI)ectivo or type, tends
during the initia.I ruming-in period, to bed dowri.
In the case of the Winged Wheel this can sometimes
leave the lock ring a little slack.
The §ymI)toms
are shown in excessive play a.t the wheel rim which
can be mistakenly attributed to a slack wheel
bearing adjusting colie.
Under no círcumstamces
should over-adjustment of the wheel bearings be
permitted for this will on]y result in collapse of tho
wheel bearings, leaving the wheel play still in
evidence.
20
ll
The procedure for re-tightening the lock ring is
as follows:
1.
Remove wheel írom frame.
2.
Remove sprocket side spindle nut, washers
and adjusting cone.
3.
Lift out the sprocket complete with driving
piece md spring.
4.
Knock down tab washer from lock ring slots.
5.
With a "C" spanner, tighten lock ring home
as hard as possible (right-hand thread). With
a narrow punch, knock the lock washer back
into the lock ring slots.
6.
Re-insert conical spring, na.rrow end first.
7.
Replace sprocket and driving piece assembly.
8.
Refit a.djusting conc, washers and nuts.
9.
Replace wheel in fra,me.
The foregoing may be necessa.iv after some 250
to 75O miles have been covered.
After a lengthy
period involving some thousand§ oí miles, the wheel
bearing adjusting cone will need adjustment due
to wea'r.
Clutch.
It has not been found necessa]y to provide any
internal adjustment for the clutch, and the oply
item to be checked here is the actual control cable,
which after a long period of use may tend to strctch
slightly, with a consequent increase ú the a.mount of
free movement as índicated at ,4, Fig. 4, although
the gra.dual reduction in the thickness of the clutch
elements with the passage oí time may tend to
compensa,te íor this.
If there is insufficient freo
movement, the clutch springs may be prevented
from exerting their full pressure on the plates, vrith
a consequont liability to slíp.
If, on the otha hand,
there is too much play, tho clutch will not be entirely
2l
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