Richmond times-dispatch. [volume] (Richmond, Va.) 1914-current, 1918-09-29
S|MPL|F|ED LESSONS IN
CARE OF AUTOMOBILE
Expert Explains Mechanism al
Steering Gear and Necessity
for It's Care.
SHOULD BE KEPT LUBRICATED
Guucrrlich Explains to Many Own
crs just How They May Solve tho
Most Difficult Problems in the Up
keep of Their Machines.
Copyright, 1915 BY Fr"dc &. Guerrlich
Lesson No. 100.

Copyright. 1918. BY Fr"dc G. Guerriich)
Lesson No. 100.
In the last lesson. YOU were shown
how the front wheels OF the automo-
bile must each turn on it's separate
pivot when steering, and how this pivot
must be hrouEh: rs near TO the wheel
possible. We have now 10 see how
the stccrn~ Of tic wheels on their
?irots is coniro!ied by the steering
In Fig. the construction OF a front
axle is shown. The part. known as the
steering knu,Elc which comprises the
wheel axie, the arm =, called the tie
rod arm, and the hub through which
tho King Pin. marked |. passes. is
shown as \. You will note that the
steering knuoklcs Of the two wheels
arc connected by tho rod &. which rod
is termed the Tie Rod and often tho
Ecacn Rod. rms Tie Rod connects
the hnuchies IN such way that, be-
cause OF the anGularity Of the r Q
Rod Arms ., whoa one wheel is turned.
the other will .'>o have to turn. ana
in the proper direction and correct
amount OF turning curve OF any
radius.
From tho above We soc tina; The steer
inE mechanism. operated by the hand
wheel. need only act on one OF the
wheels. Thus. YOU will sec. that the
lef,-hand knuckles has fastened TO it
an arm fC). BY moving this arm 60
the wheels will be made to turn on the
king pins.
The arm (C) is moved by tho drag
link CE. Fig. -. which. in turn. is
moved by the steering arm CFO.. this
steering tF) being moved by means of
the mechanism at the bottom of the
steering column. as shown in Figure ,.
CONSIDERABLE VARIATION IN
DESIGN AND CONSTRUCTION
While the construction of the steer
Ing knucklc. tie rod, drag link and
steering arm is nearly the same for all
the design and construction of the
steering mechanism proper. In the
majority OF cars the steering arm is
operated by means OF worm and
worm wheel.
Figure shows a detail of the worm
wheel. NJ is the worm. the worm
wheel, and + the steering arm. The
worm Is connected TO = hollow shaft.
to the other end OF which shaft is con-
nectcd the steering hand wheel. You
will be able TO see how. when the hand
which. in turn. will make tho worm
wheel rcvolve, and SO swing the steer
ing arm back or forth.
Study this worm and worm wheel
they become worn? Why. there will
he 4 back lash" or play. in the hand
wheel. How can this play he taken
out? you ask. The simplest way would
It's s1uarc-cndcd shaft and then turn
the hand wheel until the shaft has
made half OF revolution. and put
hack tho arm. This. YOU will notice.
will bring tho back portion of the
worm wheel. marked into mesh with
the worm. As this portion OF the worm
wheel has not yet been used. doing
this will he tho came as installing a
new worm wheel
Flay IN the hand wheel will also re-
suit from tho thrust hearings, II and I.
becoming worn, SO that the worm can
move up and down. To take out this
MAY. tho nut (E) is screwed down
When this is done. however. both
wheels must he lacked UP and tests
made Of the hand wheel. so rs to he
sure tina II does not bind In most
cars tho nut CK) is locked" by hav-
ing rho top portion OF tho worm hous-