Honolulu star-bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1912-2010, 1916-12-30

-
This spring tension In some construc.
items is Increased b. screwing up sew
leral adjusting studs which are equally
ispaced around a spider This Is rath.
or delicate operation and one which
requires some care. The screws must
be frightened evenly all the way
around and you will have better sue
cess If you give them half a turn at
"a time and do not attempt to screw
each one all the way in
The Try disc clutch is likely To de-
| yelop the same trouble symptoms as
does the cone clutch. Oil will cause
it TO slip and excessive slipping will
/ glaze the fabric on the disc and make
| matters worse. A little castor oil
or meats foot oil will have a good
\ effect on the friction surfaces, and
| spring adjustment, as in the case of
the cone clutch. may occasionally he
| necessary
Now returning 10 the cone clutch.
we find that il the leather becomes
dry the clutch grips suddenly and
smooth starting is impossible. Slip
| ping sometimes results from the same
cause. OUT usually because the leather
has been allowed to burn. 1t is i'm
portant 20 remember that the facing
should at all times be kept soft and
pliable by an, occasional dressing with
meats foot oil A spring which is
too stiff will make il impossible TO
engage he clutch gradually, and if
the leather has worn down so as to
expose me copper rivets they shonld
be driven in deeper, or, better still,
the leather should be replaced.
The multiple disc clutch which runs
in an oil bath is dependent for proper
operation on the lubricant Too heavy
an oil will often cause it to grab.
When ,his occurs it is wise to drain
out the old oil and refill the case
with heavier lubricant
The shird requirement is that the
clutch shall disengage promptly, so as
to make quiet gear shifting pos
sibility. This is often only matter
of proper pedal adjustment and is
remedied by taxing up some part of
the linsage so that depression OF
the pedal will draw the clutch fur.
Their out of engagement. II is import
ant to have the pedal SO adjusted that
it does not strike the floor board at
either end of the slot in which il
moves. The disc clutch; running in
oil, may fail to completely disengage,
because the oil is so, thick that it's
viscosity tends TO keep the plates
rotating even after they are slightly
separated. AS in the case of a slip
ping clutch, this can be overcome by
thinning the oil Wear in the joints
of the clutch pedal linkage will often
cause so much lost motion that even
when The pedal.is pushed to the end of
its stroke the surfaces have not en-
tirely separated.
The clutch release ring has been a
source of noise, because makers
failed 10 realize that It was inacces-
sible and required some provision to
insure constant fabrication. The re-
suit was that the yoke fingers and the
release ring became hot and the clutch
squeaked The old type can be proper
II fabricated by tapping a grease cup
into the collar, and in the modern con-
struction some such provision is al
ready made.
Abuse of the clutch is the most fire. |
quent cause of its failure. Much of
this abuse is carelessness and much
of it is due to ignorance of the duty
which the clutch performs. The less
the clutch slips the longer will be its
life. II you start the car from dead
stop. you will understand that slip |
ping must take place until the driven
shaft has been brought up to the
speed If the crankshaft, or, if you
change 10 the next speed, more slip |
ping must occur until both shafts turn
as one.
If, when the clutch comes into en-.
gagement, you can have the engine
turning over at the same speed as |
that Of the driven shaft. the two
parts will be engaged without any |
slipping at all. OF course, this is |
condition which you can only APP |
pfoxipate. You can, however, bear |
in mind that this should be your
aim and that the nearer you approach |
it the smoother your gear shifting will
be and the longer your clutch will
last.
Even the best clutches on the cars |
today are "a mechanical compromise,
for they do not give che smooth flow
of power that we desire. Too much |
depends on the skill OF the operator
~ \ e