Tulsa daily world. [volume] (Tulsa, Indian Territory [Okla.]) 1905-1919, 1918-09-01
AUTO LESSON 40. ios.


bills VI other parts Of the car. Proof
~ the latter statement is given by
the fact, that the cost Of repairs Of
! "A truck equipped with solid lirss iB
much greater per mile than one
equipped with pneumatic tires. be-
'oauHo uf the lees Cush,OuiuK of
shocks with the solid tire When a
spring Is neglected lts cushionlug at-
, ton Is decreased
There are number Of types OF
springs In use. though tho five most
commonly used are. the semi clip
cal the three quarter clliptical, full
| ellipuCal. cantlleyer and platform.
The front springs are almost uulver-
sally Of the srmi-elliptical type as
sIuwn In Fig /.
Figure shows the three quarter
clliptical. Fig J tho fun ellpiical
Hy observing that this latter looks
Ike an ellipse, the reason for the
name OF the three types shown In
Fig !, 2 and 3, viii teadiy be seen.
Fig shows the platform and Fix
the cantilevcr spring, Tho latter
type is comparatively new. but has
become very popular
a study OF Fig I will show why
nbricauOn ia so important when
the spring In depressed Il will take
tho position shown by the dotted
lines You viii observe that II has
StralglAcned TO some extent Now NJ
each leaf OF tho spring has straight
cned as has the whole, there will be
n sliding Of tho leaven on one any
ether. You will also notice that the
'shhckle' letterod 10 has also moved
I'D. In doing 30, has swiyeled on
Ith It's "ahackle Tt1H" c. Now. (
7 creF In friction between the leaves
between the shackle and It's pins
: Is friction will resist the aMion OF
springs and 80 really make the
Ings act as though they wer,
fer or less flexible
IN order to properly mbricate the
tckle pins the pin has grease
,>p on It's end, and Is drilled ~
wn IN iFg 6 When the grease
, is turned up the grease Is forced
rough tho hole ID and then T. and
reads out over tho entire length OF
pin. there being a fiat" ground
a the pin to permit this,
II Is we'll TO use the grease cupt
,'ten, AZ least once week, even
tough tho car IL little used. as the
ease In the hole T. may mix with
I
will prevent the grease getting on
tle outer surface OF the pin. A con
ant turning up" on the grease cup
viii prevent this
The leaves Of the spring are best
fabricated by 'BraphitinE." which
s1ould no done at least every 10000
miles, or, N the car is little driven
every spring. To do this, proceed as
follows:
Get some graphite grease. or make
paste OF flake graphite and oil. or
preferably gasoline, Remove OF
4 bend open the clips" r and g. Jack
up the frame OF the car so that tn,
1 wheel is just or the ground and
4 hangs ON the spring. With a fine
4 scrowdriver Tor special tool which
4 can be purchased for this purpose)
yry open the bottom leaf and, will
thin kitchen knife smear IN,
\ graphite grease or paste between th'
u go bottom leaves. . Then take tn,
next leaf and so on.
The graphite and gasoline paste
4 while hard TO use. has tho advnntagt
Of the gasoline evaporatlng. no tina
n hat paste gets on the outside OF IN,
4 ring will dry up and blow away
When grease or graphite and oil II
ised the spring will be covered with
), which may. result In sotled gar
J'ent,
While mbrIcating the springs and
\ I t1eir shackles is important, Il is prob.
1 tlly more Important that care b,
J ken 10 see that all bolts clips and
jis he kept tight The u bolts
nrked " In Fig 2, reuqire especia
ltching. as. n they become loose
; ere Is very great danger Of the
\ tcrmediate leaves ~ the spring,
rnking In their middle. A breal
this kind Is "A sure sign that the 4
rs were permitted TO come loose
4 so matter how good the locking
vices used to prevent the nuts from
rnlng. these bolts Will loosen, as
4 I cause OF the constant pounding tc
h,ch they are subjected, they vii
ctch little.
Nt least once month. therefore
vers should test the nuts X and
! yhten them.
10 ls a good practice TO 60 over al
bolts and nuts 81 tho car abou
90 n month and tighten any which
.yp become loose. Many rattle
squeak will be prevented bl
.nR this
d in most cars the springs ~ ~
I 0uuted on the rear axle and tSifar
lrement of the torque members u
w.. that the rear axle housing con
utly reyolves back and forth 10
lie way In the spring saddle ant
airing "A the entire weight OF thl
G comes on these saddlors the weai
\ re. n there IL not proper luhricR
o. will be great \ grease cup a.
nwn in Fig .. lettered VI, Is fur
shed 20 take care OF tho lubrlcatior
l.ere
Unfortunately Il Is hard 20 set a
4 = grease cup, aid u Is liable TO M
ilrty job. 80 that Il Ia very ofte'
elected II H. however. an import
grease cup The writer has reei
, any axles which were worn unde
. spring saddle TO q depth of six
nth and even eighth OF an Inch
* ot fabrication of these "Had
e" is very often tho cause OF
I. squeak" from the roar of tho car.
Naen the Hprines are taken ou
70 must he taken 90 replace kbeU
rrectly In most cars the fronPsNl,
not act directly under the middlt
ihe spriug hut a little forward o
mlddie.uas hy doing this a Hor
castor" action ls obtained, whicl
n help 90 keen the car In the road
the long portion OF tho sprint
n'acrd forward hy mistake ~ VII
extremely difficult 90 have mo ca
lyel IN q straight line